i SCIENCE BEHIND ETHNO KNOWLEDGE DEEPAK PRASAD KAYASTHA This thesis is submitted to the Tribhuvan University in partial fulfilment of the requirements for The Master of Philosophy in Education August, 2011 ii Abstract This study has focussed on the perception of science under ethno knowledge. I had done in-depth study of some households of Bhaktapur and Kaski districts where three generations of Newar family were living together. Underpinning the science behind traditional practices was the main area of this study as many such practices still prevail in many Nepali communities. What was more intriguing was that people have followed such practices unknowingly about the science hidden into it. Most arguably, practices related to health care and hygiene, culinary practices, and housing are some of the areas that inherit significantly from our traditions. Qualitative approach was used in this research to articulate the use of ethno-science between the two different generations – grandparent and grandchildren. Focus group discussions, interviews, and observation of artefact and practices constitute the major data source. This information was processed and interpreted with the help of Ethnography. The study found that there is a big gap between the traditional knowledge and the modern knowledge for which modern technologies appears to be the cause. Except in a few areas, most traditional practices have their own explanations and the process for which there were particular values attached to them. In the study, intergenerational value difference in scientific knowledge was also identified and the ways to bridge the intergenerational knowledge through educative process was highlighted. iii Library Release Form Name of the author Deepak Prasad Kayastha Degree Master of Philosophy in Education Year of this degree granted 2011 Permission is hereby granted to Tribhuvan University to reproduce single copies of this thesis and to lend or sell copies for private, scholarly or scientific research purposes only. The author reserves other publication and other rights in association with the copy right in the thesis, and except as herein before provided neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatever without author’s permission. -------------------------------Deepak Prasad Kayastha 2011 iv Declaration I hereby declare that this thesis has not been submitted for the candidature for any other degree. I understand that my thesis will become a part of permanent collection of Tribhuvan University Library. My signature below authorizes release of my thesis to any readers upon request. ----------------------------Deepak Prasad Kayastha 2011 v Acceptance and Recommendations The undersigned certify that we have read, approved, and recommend to the Faculty of Education, Tribhuvan University for acceptance, a thesis entitled SCIENCE BEHIND ETHNO KNOWLEDGE submitted by Deepak Prasad Kayastha in partial fulfilment of the requirements for the degree of MASTER OF PHILOSOPHY IN EDUCATION WITH SPECIALIZATION IN LEADERSHIP STUDIES. ....................................... Dr Vishnu Karki, Ed. D. Thesis Supervisor ………………………… Dr Hridaya Bajrachharya External Examinar …………………………… Dr Rukmani Bajrachharya External Examinar August, 2011 vi Dedication To my parents vii Acknowledgement I sincerely would like to express many thanks to Dr Vishnu Karki for his immense support and advice to complete this thesis. I am also equally thankful to Dr Bidya Nath Koirala for his massive cooperation throughout my work. I am grateful to the Principal of Budhanilkantha School, Mr N P Sharma, Vice Principals- Mr R N Dawadi and Mr K Khulal for their full support and co-operation during my M Phil study. I am also very indebted to Mr Mukunda Amagai, Mr Rajesh Manandhar, and Mr Ramchandra Dahal for their immense help and support during the gestation period of my thesis. I am so much thankful to Mr Noor Jung Shah for his full cooperation to convert my thesis into the APA style. I would also like to extend my gratefulness to the families of Mr Prem Lal Malla for assisting me during my fieldwork and all the households and the informants that I got support during my field visit. I appreciate my wife, Sushila for her patience and support throughout my M. Phil. Study. I am equally indebted to my brother Mr Rabindra Kayastha, the assistant professor of Kathmandu University for his full guidance throughout my study. viii Table of Content Abstract ........................................................................................................................................... ii Library Release Form .................................................................................................................... iii Declaration ..................................................................................................................................... iv Acceptance and Recommendations ................................................................................................ v Acknowledgement ........................................................................................................................ vii CHAPTER I .................................................................................................................................... 1 Introduction ................................................................................................................................. 1 Background of the study ............................................................................................................. 1 Medicinal Practices ..................................................................................................................... 4 Daily Living Practices................................................................................................................. 7 Problem Statement and Rationale of the Study ........................................................................ 12 Research questions: ................................................................................................................... 12 CHAPTER II................................................................................................................................. 13 Literature Review...................................................................................................................... 13 Conceptual Framework ............................................................................................................. 26 Chapter III ..................................................................................................................................... 37 Methodology ............................................................................................................................. 37 Selection of the Site .................................................................................................................. 37 Tools/ Instruments .................................................................................................................... 38 Participant Observation ............................................................................................................. 38 Focus Group Discussion ........................................................................................................... 39 Science behind traditional practices.......................................................................................... 45 ix A. Daily Living Practices:......................................................................................................... 45 1. Structure of the old houses ................................................................................................ 45 2. Ethnoscience in Chulo ...................................................................................................... 47 3. Location of chulo .............................................................................................................. 48 4. Cloud formation ................................................................................................................ 49 5. Additional importance of smoke ....................................................................................... 49 B. Health Related Practices....................................................................................................... 50 1. Health awareness of the grandparents: ............................................................................. 50 2. Clever use of the products of fire wood ............................................................................ 50 3. Use of abir ........................................................................................................................ 51 4. Use of suraii for storing drinking water ........................................................................... 51 5. Pond water /river water is regarded as a drinking water. .................................................. 51 Findings and Discussions .......................................................................................................... 52 1. Knowledge on house construction .............................................................................. 54 2. The thermodynamics of chulo .................................................................................... 58 3. The scientific location of chulo .................................................................................. 61 4. Cloud formation: the contribution of chulo ................................................................ 62 5. Multipurpose of smoke ............................................................................................... 64 B. Health Related Practices....................................................................................................... 64 Health awareness of the grandparents: ..................................................................................... 64 1. Fire wood and smoke hazards: ................................................................................... 64 2. The science on the fire wood used in the chulo .......................................................... 66 3. Use of abir (vermillion) .............................................................................................. 67 x 4. Suraii for health and local economy ........................................................................... 68 5. Pond water /river water: healthy practice. .................................................................. 69 Chapter VI..................................................................................................................................... 72 Conclusion and Implications..................................................................................................... 72 References ..................................................................................................................................... 81 Appendix –I .................................................................................................................................. 85 Appendix -II .................................................................................................................................. 94 1 CHAPTER I Introduction Background of the study Long years back, people were trying to understand the nature and hence remained closer to the nature. They were not aware of the advent of the modern science and technology. Over the time, considerable change has happened in science and technology and their use in addressing basic human needs such as housing and food habits. However, what is more intriguing is to note that in most traditional cultures, age old practices, especially on shelter and food habits, are still prevalent and that they have sustained healthy living. What is the science or the knowledge behind traditional practices that contributed to continuation of the traditional practices, and that people are still making satisfactory living with the practices? Current research is more or less an attempt to find scientific reasoning on some of the most common activities that many people have been practising in traditional ways mostly in rural areas but is also common in some urban households in Nepal. While this traditional science and the knowledge that was transferred from generations to generation was initially in my mind, I did some exploration into the literature where I could find something like ethno-science which was quite a new concept. There was an abundance of literature on ethno-mathematics, ethno-botany, ethno-biology but the word ethno-science was relatively few in the literature search. As a science teacher, lack of information on this new knowledge domain “ethno-science” made me inquisitive to explore the knowledge or the science behind traditional practice and that how it explains ethno-science in our Nepalese context. 2 To begin with, I did preliminary survey of some households in which three generations were living together. It was fascinating to note that many of their methods used in daily chores were very much scientific. This made me even more curious to examine this household level science which is used interchangeably as ethno-science. Ethno-science researches have been started in different parts of the world as we could see some research related to these in the libraries and in the internet. Most of the ethno-science researches have been done in ethno-botany and ethnomathematics but the history of ethno science is not that long. The ethno science basically focuses on the knowledge rather than the number of sample (www.ethnoscience.com). Therefore, the research is based on the reviews of existing literature and the experience of some household studies. According to Encarta dictionary, ethno means culture. So, ethno science means the science inherent in people’s culture. There are different traditions, beliefs, logical reasoning, and habits ascribed in such cultures. There exists innate reasoning and logical thinking, in each culture, behind such practices that is often described as traditions have been followed through generations. Such reasoning and logical thinking provides as the basis to form the ethno-science. Speaking of the traditional buildings, the earthquake of 2045 BS provides good reasons to discuss how traditional buildings could resist the wave whereas many of recently built houses failed to stand it. Likewise, the knowhow about different types of spices used in cooking and preserving food dates back to hoary past which has transcended from generation to generation. The knowledge or the science that has been transcended from generations is gradually fading away due to inadequate research and studies. No doubt, that the modernization has made human living safer and comfortable than ever before, widespread use of gadgets and instruments in daily living and household chores have on the other hand made us more dependent. For example, 3 spices are readily available in the market that meets food specific requirement of ingredients, making cooking lot easier. The person cooking the food need not know anything about spices being used. Basic cooking and preserving food used to be the common household knowledge, which has now been fading away due to extensive use of gadgets and readymade recipes. Kitchen, in particular, in many Nepali cultures receives an utmost priority in terms of its location and value in the household chores. In some cultures, it is the place that is most neat and tidy, for example, the thakali kitchen. Fire, an important source of energy in the kitchen is also considered the god and is regularly worshipped in Hindu culture. Thus, cleanliness in the kitchen is also associated in the use of fire that is considered as the god. Wasting food is considered a sin but an offering is usually made to the fire god prior to beginning the meal. Impact of the disappearing knowledge is discernible among our new generations. Hence the sole motive of this study is to bring forth the traditional practices and culture and to examine the scientific reasoning envisaged in them. Nepal is really rich with old people with old techniques and we should understand the science associated with these techniques. The old methods and techniques are scientific in many ways. It is for this reason that we need to look their methods through the lens of science. Among the innumerable items, some of the items and techniques discussed in this thesis include the science behind indigenous structure of the old houses, and the science behind chulo – the kitchen. Additional importance in the study is also given to explore scientific reasons in the use of smoke, health awareness of grandparents, clever use of the products of firewood, scientific truth in the use of charcoal, old method of tackling mental stress, use of abir, use of surai for drinking water storage. These discussions have been grouped into two broad categories for better understanding as: Medicinal practices and Daily living practices. 4 Medicinal Practices There are various practices still executed by the old people for various purposes which although does not apparently look scientific are very scientific and many valuable reasons behind it. For instance, when the body skin burns due to the accidental fire break, the old people spat the paste of cow dung around the affected area. They said it prevents the formation of blisters. But the discussion with the medical doctors shows that they are not in position to accept this concept and yet the old people are using these methods since the time immemorial and they are getting relief from these methods. Therefore, how far the truth is there needs to be studied scientifically in this regards and this will really be beneficial to the Nepalese people. For instance there is a scientific reasoning behind the ‘paan’. Old people whom I talked with believe that eating ‘paan’ increases the strength of the teeth. This has scientific reasoning. paan consists of ‘chun’ which is calcium oxide powder. The powder thus provides calcium which is very essential to strengthen the teeth (Mackean & Jones, 1985). Similarly, the old people preferred to have pickles grinded in the thick stone slate rather than grinding in the electric grinder. There is pretty scientific reasoning behind this. The old people prefer that because the stone slate provides fine particles of stone which is the compound of calcium and it is because of Calcium that the pickles grinded on the stone slates are tasty (Tuli, et al, 1983). Pickles without calcium have blunt taste. Similar is the case with water. River water is also tasty as it flows along the stone rocks they contain plenty of calcium ions (Sthapit & Pradhananga 1996). Underground water have blunt taste as it is not coming in contact with the rock stones and hence consists of very little or no calcium ions at all. That is why the old people prefer to have pickles made in the stone slate. The calcium makes our teeth and bones stronger and hence essential substance for our healthy growth (Mackean & Jones, 1985). This clearly shows how the old people are using science in their day to day life. 5 Another physician points out that as far as possible, patients should be given only the traditional methods of treatment unless it is really very essential. It is because the pharmaceutical medicines always have some or other sort of side effects. He recommended sourly foods like teete karela and pickles with ‘methi’ which gives sour taste is the best method to control the blood pressure. When I consulted with dieticians and doctors in an Adolescent Health Training Programme in Budhanilkantha School (2010), they claimed that food in particular with sour taste such as teete karela (bitter gourd) has medicinal values in controlling human blood pressure (01/08/2009). This message had also sparked my mind. Those old people that I met were very cool in spite of their old age- generally I have found many old people in the urban areas very sensitive due to problem of the blood pressure. There are some amazing methods, which are very powerful methods to cure some of the diseases like curing janai khatira. This disease was treated by writing a lion around the blisters. But a physician Dr Dhakwo told (12/12/2010) me that janai khatira is a disease named Harpes Zoster. Herpes Zoster is a viral infection in the nerves, and it spreads along the branches of the infected nerves. An ointment called ‘acyclovir is used to cure this disease’ said Dr Dhakhwo. I feel that Research needs to be done in these amazing traditional methods because this method is curing this disease among several people according to the old people. The old people had no access to the allopathic medical treatment in old times. They had their own old methods to cure for pains in their back, hands and legs. For this they used ‘anani chamal’. The anani chamal is soaked in water. The soaked chamal is then roasted in margarine. After that the roasted chamal is then cooked like a plau. People with back pain, hand and leg pain eat that plau to get relief from the pain. 6 People who suffer from the janai khatira are also very effectively treated with old methods. An artist with his own rituals writes lion around the boils with the Lion’s mouth widely open on the boils. Grandmother of one of old house told me that she suffered from the janai khatira just two years back. ‘It was very painful’ she said. She had undergone medication but it did not heal, rather it increased and became more and more painful. Many of her relatives asked her to go to an artist and write lions on the affected area at the back side of her body. Then she went to an artist nearby her house. The artist wrote following his own rituals. After two days the janai khatira was gone. Similar incidents had occurred in Kumar Saijju’s house. His grandson had also got the janai khatira which was healed only after writing lions on the affected area. One of the old ladies in Pokhara showed me a special kind of net which is used to cure jabi khatira. A jabi khatira is a kind of boils that rapidly spread all-round the body, is extremely itching and produces red spots. The old lady named Kundali told me that the jabi jali (net) is smeared around the affected area and then it is pressed under the jatto. After four days all the boils disappeared. Grandmother Kundali said that in her time many people suffer from that kind of diseases and she used to send her jabi net to them. She said the net has been kept in her time from the time immemorial. She had shown me the net. This is the most challenging method to science that I have found. When I consulted with number of doctors they say that it is a kind of viral infection which can be cured but they have no answer to the traditional method of curing such disease. According to the physician, the janai khatira is a disease called ‘Herpes Zoster’. It is a viral infection in the nerves, and it spreads along the branches of the infected nerves. The jabi khatira is a disease called Morgellons and is caused by Morgellons parasites that wreak havoc on the skin causing itching and biting symptoms that are relentless. According to the physicians, these diseases can be treated through antiviral creams and tablets. 7 Daily Living Practices a. Sitting practice In the old houses I had often seen the old people sleeping in the hard mattresses. I thought they slept on such hard mattress because they are poor. I thought sleeping in the hard mattress would spoil the health. But these old people are healthier than the urban people who slept in the cosy mattresses. In this regard I had consulted with the medical doctors. ‘Sleeping in hard mattresses like the straw mat would keep our body in correct posture’ said a child physician. Our body needs to be in correct posture to maintain our health. According to the doctor, the incorrect posture would lead to constriction of nerves that lead to several types of diseases specially nerve diseases. b. House construction practice. Almost all the old houses are built in such a way that it consists of topmost floor with slanting tiled roofs. In some of the houses slate roofs are often seen. The houses are built of bricks and mud with a 14” thick wall. This is called houses built on ‘wall system’ basis. In the wall system, because the walls are very thick, it is safer in terms of earthquake point of view. In 2045BS, an earthquake of 7richter scale stroke with its epicentre in the district of Udayapur. Its effect was felt in the Kathmandu Valley as well. So many houses including the houses built by modern methods were collapsed but the traditionally built houses did not collapse. This proves that the wall system houses have greater resistance to earthquake. The topmost floor is not usable to live. It is used as a store room in some houses while in others it is used as place for worshiping the god. A small window is kept on the roof to allow light to enter inside the room. Apart from the small peephole like window there is no other window. 8 The second topmost floor is used as kitchen. It is called bhanchha kotha. Bhanchha kotha is used for both kitchen and dining. The third and fourth floor is used as bed rooms and living rooms. There are plenty of windows in these rooms made up in old style with carved windows. The bottom floor is a ground floor. The bottom floor is used for making shops. Toilets are made in the bottom floor. The floors are smeared with paste of red soil and cow-dung Brushing practice The people of these houses in many cases are stuck to their old methods and styles. Those old people I have found brushing with coal and charcoal whereas their sons and grandsons/ daughters are habituated to brushing with toothpaste. But the most interesting part is that those old people who brush with those coal and charcoals have very shiny and healthy teeth. I asked Mr Kumar Saiju ‘where do you get coals and charcoals from?’ He said ‘Well I smoke tobacco so I have plenty of coals and charcoal.’ The charcoal is the burnt out tobacco. Anything burnt out in limited or absence of oxygen forms charcoal. People who are suffering from the abdomen pain are also treated very easily by charcoal. Such people are given hot water in which seven pieces of ‘ko appa’ the charred brick, the charcoal is added. Sometimes the ash of the incessant is also used for relieving the pain in the stomach as seen practiced by the phukne baje in Pokhra and Bhaktapur and in Budhanilkantha, Kathmandu d. Alcohol making practice Another interesting part of these old peoples’ houses is the method of production of Alcohols. They are making excellent alcohols. In many places in Bhaktapur people make alcohol at their own houses whereas the new generations are habituated to drinking foreign alcohols. 9 The alcohols are excellent in taste and I wonder how old people are able to make such beverages when they know nothing about science. I observed the procedure and talked informally with them. I found that they first of all use kodo, gahu, rice etc containing maad matter are grinded into small particles. Then water is added to make a paste. Then it is cooked only with a steam. A big copper container named as fosi is taken and water is added into the fosi. On the top of the fosi is kept an earthen container with a hole at the centre named as potasi is kept. The hole of the potasi is closed with straw and on the top of the straw the paste is put. The mouth of the potasi is closed and the water in the fosi is heated. After one and half hour the paste is cooked with a steam. The paste is then put in a clean place and is spread. When it is cooled, yeast (marcha) is put. The powdered yeast is uniformly mixed. Then this mixture is put into a big container (gyampa) and some water is added. It is kept idle for 10/12 days and according to the need it is stirred time to time and yeast is added. The paste inside the container starts to boil and sometimes the froth even comes out of the container. After the process of overflowing starts to diminish, then distillation is preceded. For this the liquid of the gyampa is transferred into the fosi. On the fosi is adjusted the potasi. The junction between the fosi and potasi is made air tight. For making air tight they enclose the junction with a wetted cloth. Inside the potasi they put a small container, which they call it as patra (receiver). On the mouth of the potasi, a funnel shaped copper container is adjusted. The copper funnel and the potasi junction are also made air tight. Consequently the liquid starts to vaporize. The vapours are cooled in the copper funnel. The condensed liquid droplets then fall down into the receiver. To condense the steam time to time the copper funnel is exchanged with cold water. 10 When the patra is full, it is taken out and replaced with another. This distilled water is alcohol. The first part consists of more very high concentration of alcohol while the latter part consists of low amount of alcohol. Scientifically speaking, when a solution of sugar is allowed to stand in the presence of yeast for a few days at about 300 C, it undergoes fermentation forming ethyl alcohol and carbondioxide. The fermentation is a process of slow chemical decomposition brought about by two enzymes present in the yeast. The enzyme invertase converts sugar into glucose and fructose while the second enzyme converts these into ethyl alcohol. C12H22O11 + H2O C6H12O6 C6H12O6 + C6H12O6 C2H5OH + CO2 The fermented liquid is submitted to distillation when a sample contains 90% ethyl alcohol. Sugar required for the above purpose is taken either in the form of molasses which is the byproduct of sugar industry ( Tuli et al, 1983). c. Washing practice In one of the old house in Pokhra, I met a grandfather and grandmother. Their daughters in law were washing their clothes in washing trough made of plastic. I asked with the grandfather and grandmother whether in their time too washing method is also same or different. They replied that it is different. There was no soap in their time. But they used a specially made liquid to use as soap. That was very interesting. They said it was far better than the soap. They said it is made by burning a bundle straw. The ash thus formed is then put into a small perforated bucket made up of bamboo. Then water is poured into the bucket and through the perforated bucket at the 11 bottom comes out a very slippery gray liquid. That liquid is used for washing purpose and it can totally clean the dirty clothes. I inquired whether same solution can be used for taking bath or not. They replied that solution is not suitable for taking bath. For bathing purpose, they have different soaps. They are still using it. They showed me rittha. It grows up in the tree. It is easily available and is cheaper. The liquid present inside the rittha produces too much froth and is slippery in water which is used for taking bath. ‘It makes the hair black and healthy’ said the old parents. It also removes many of the skin diseases. It is far better than the shampoos. Water drinking and filtering practice To drink cold water they put water in earthen container which keeps water cool. One of the grandparents told me that in past days the religious people dig a hole in the ground around the Chautara and earthen containers are kept inside with water in it to provide water to the pedestrians. The aforesaid practices and the reasoning and logical thinking embedded in them made me interested to examine ethno-science through this study. Although, Nepal is a small country in comparison to the big neighbouring countries China and India, it inherits a rich cultural heritage and thus it provides an ideal condition for studying ethno-science. In every culture, practices pertaining to comfortable and healthy living are also apparent. Being a relatively poor and undeveloped country, influence of modernization is also relatively less compared to other nations. The most common form of activities that the human kind has followed through ages since early civilizations include: shelter and food habits. These two provisions in daily human living form the major area of assessment in this study. 12 Problem Statement and Rationale of the Study Innovation in technology has made daily living easier and comfortable. However, we have also become more dependent to different gadgets and readily available materials. While this has made modernised/urban living possible, we have been losing basic household knowledge and practices that our parents and grandparents used to keep them on fingertips. There’s no denying that there is a science behind such traditional practices and that there are many traditional activities that needs to be studied and the hidden science to be revealed. This knowledge has been passed through generations and no attempt appears to have been made to document it. Thus there are two issues with regard to traditional knowledge: a) that it has not been properly documented and b) the science hidden behind these age old practices needs to be revealed. The study is only a small attempt to reveal the science behind traditional practices and how traditional science is gradually fading away in the new generations. This study presents the importance of preserving the traditional practices in learning science on our own methods. Studying on our own methods would be more economical, sustainable and effective in learning science and in applying science to invent new products using the traditional and modern science. Research questions: On the basis of the above background I developed three research questions that are mentioned below: 1. What is the science behind traditional practices? 2. How the inter-generational values differ in using the traditional scientific knowledge? 3. How the modern scientific knowledge can be taught with the help of traditionally nurtured knowledge? 13 CHAPTER II Literature Review The concept of ethno-knowledge Ethno is a popular prefix these days, because that is a short way of saying ‘that’s the way other people look at the world (Martin, 2004)’. When used before the name of an academic discipline such as botany or pharmacology, it implies that researchers are exploring local people’s perception of cultural and scientific knowledge. History shows that ethno-science related study was first introduced by Chalk Buttes (19841985), the Northern Cheyenne Cultural Commission, the Fort Peck Tribes and Custer National Forest with funding from the National Park Service did a cultural assessment of the Chalk Buttes area in southeast Montana. He had found out about the traditional and cultural significance of Chalk Buttes. Ethno-science is currently working for the Kalispel Tribe Natural Resources Department since 1999 and is still going on (www.ethnoscience.com). The project involves an archaeological inventory of traditional lands, ethnographic interviews with Elders to determine cultural significance. Lynelle A. Peterson has been the President and Senior Archaeologist of Ethno-science since 2008. She had been supervising cultural resource investigations since 1986. A native of North Dakota called Peterson had worked throughout the Plains and had experience in both historic and prehistoric archaeology. She worked six years with the National Park Service, spending three years examining Fort Union in northwest North Dakota. From 1989-1991, she worked for the University of North Dakota where she conducted numerous projects in the state. In 1991, 14 Peterson joined Ethno-science, and bought the company in 2003. Peterson has supervised hundreds of survey, testing, and mitigation projects. Her expertise includes archaeology of the northwest Plains, stone feature sites and historic archaeology of the late nineteenth century EuroAmerican and Indian sites. Boughton has been conducting intensive cultural resource inventories, site testing and full-scale data recovery excavations in many western states, primarily North Dakota and Montana since 1989. He had worked for many clients and agencies to ensure compliance with Section 106 of the National Historic Preservation Act. Some of the clients include the Department of Transportation (Montana and Oregon), the Bureau of Land Management, the Bureau of Indian Affairs and several private coal companies in North Dakota. Boughton has extensive experience recording both prehistoric and historic sites and making recommendations of eligibility to the National Register of Historic Places. Since 1985, Fandrich has worked on numerous historic and prehistoric site documenting, recording and mitigating projects, primarily on the northern Plains and northwest Plateau. His current work focuses on the documentation of historic homesteading and transportation properties on the northern Plains and historic hydroelectric properties on the northwest Plateau. Fandrich is skilled in historical research practices, archaeological fieldwork methods, library and archive classification procedures, and the gathering of oral history. Fandrich has contributed to well over fifty cultural resource studies, including historic overviews, ethnographic overviews, environmental impact statements, cultural impact assessments etc. Since 2002 Jacquelyn C. Ferry has been conducting pedestrian survey, shovel testing, monitoring for assessment, excavation and emergency excavation in Montana, North and South Dakota, 15 Wyoming, Washington, England and Wales. She has worked on projects for the Department of Transportation, the National Park Service, large energy and environmental firms and personal landowners. Strait has been conducting prehistoric and historic archaeological research and fieldwork since 1995. He graduated with a BS in Anthropology from Iowa State University in 1995. In 1999, he obtained his MA in Archaeology from the University of Arkansas, specializing in ethnic studies. Strait has also conducted archaeological investigations throughout the Southeast, Great Basin and the Plains, including historic overviews, environmental impact statements, cultural impact assessments, cultural resource inventories, testing, documentation, and mitigation reports. Jennifer L. Thomas another ethno-scientist had been conducting archaeological pedestrian surveys, site recording and assessment, site eligibility testing and data recovery excavations since 1999. She had experience with artifact analysis, monitoring construction activities for cultural resources and writing technical reports. She has also worked on projects in Montana, North and South Dakota, Wyoming, New Mexico, Texas, Missouri and Washington. Likewise Scott J. Wagers had been doing prehistoric and historic archaeology since 1995 and has worked on projects in Montana, Idaho, Washington, North Dakota, Minnesota, Illinois, Utah, California and Ireland. He had extensive experience in historical and ethno-historical overviews, literature reviews, archival research and database management. He had also assisted in coordinating numerous field crews on survey, testing and mitigation projects. He has co-authored or contributed to numerous technical reports and is skilled in archaeological fieldwork methods and laboratory analysis. 16 Dietrich Brandis, the first Inspector General of forest in India in his book Forestry in India: Origins and Early Development had recorded Indigenous Indian forestry and describes sacred groves, game preserves and closures in Rajputana (now Rajasthan); and Kans (woodlands/sacred groves) of Mysore districts. There was also surprising paucity of literature on indigenous forest management after Brandis in India. The All India Coordinated Research Project on Ethno-biology has currently started. Several leading institutions in India played a key role in the project. These include Botanical Survey of India, National Botanical Research Institute, Regional Research Laboratories, Forest Research Institute and several Universities in India and abroad. No explicit reference, however, is seen on indigenous forest management systems. A number of dissertations on Ethno-mathematics are reported in different parts of the world. These are effective research contributions, which add significantly to the area. This is a report on a number of them. On May 1995, Maria Luiza Oliveras Contreras presented a doctoral dissertation at the University of Granada, Spain (www.ethnoscience.com), with title “Etnomatemáticas en Trabajos de ArtesanÍa Andaluza: Su Integración en un Modelo para la Formación de Profesores y en la Innovación del CurrÍculo Matemático Escolar” [Ethnomathematics in the Artisanal Work in Andalusia. Its Integration in a Model for Persevere Teacher Training and in Innovation of School Mathematics Curricula]. This important work was the result of more than 10 years of research on the Mathematics identified in artistic artifacts typical of Granada. Three kinds of these were chosen for his research: empedrados (stone pavement), taraceas (marquetry) and alfombras (carpets). A very original ethnography was proposed by the author to identify the Mathematical contents of these beautiful handworks. An ethno-mathematical theoretical framework had 17 allowed the recognition of important styles of doing Mathematics, which would be unrecognizable with the prevailing views of academic mathematics. An important aspect of these was researching the way the techniques of work and were transmitted among artisans, the masters and the apprentices. This was very appropriately called "ethno-didactics" by the author. And the methods there observed were important in proposing a structure of teacher training through projects. Those methods could be recognized as a model of training teachers to act as researchers. This important contribution to Ethno-mathematics could probably be a book in the series published by the Department of Didactics of Mathematics at the University of Granada. After mentioning the history of ethno-knowledge exploration practices, I now present a brief review of the development of science related ethno-knowledge based research in a chronological order. In 1563 Gareia da Orta published his `Os cologuis' on ethno science without using the term ethno-botany. This publication gave the account of the indigenous medicinal plants of India. But it was William Harshberger whose study used the term ‘Ethno-botany’ to denote the uses of plants by aboriginals and indigenous people in 1895. In the year 1897: Dietrich Brandis, the first Inspector General of forest in India in his book Forestry in India: Origins and Early Development records Indigenous Indian forestry and describes sacred groves, game preserves and closures in Rajputana (now Rajasthan); and Kans (woodlands/sacred groves) of Mysore districts. There was a surprising paucity of literature on indigenous forest management after Brandis in India. In 1962: R.E. Schultes defined the role of ethno botanist in search of new medicinal plants. He elaborated the subject and enlarged its scope to related fields. In 1963: A publication of fundamental importance appeared in Vanyajati (11th volume) S.K. Jain had given his observations on ethno botany of the tribes of Madhya Pradesh. The works of R.E. Schultes, 18 Ammal and S.K. Jain were of vital importance for they not only gave direction and widened the scope of the subject; they also played a catalytic role in starting several ethno botanical studies. Discussion on the indigenous ‘management’ of resources, however, remained wanting, except studies on sacred groves by Madhav Gadgil and V.D. Vartak during the decade of 70s. In 1972, UNESCO’s Convention concerning the Protection of the World Cultural and Natural Heritage popularly known as World Heritage Convention adopted. It offered ways to protect the cultural landscapes and recognizes the value of the cultures, traditions and beliefs of indigenous communities. In 1980: The All India Co-ordinate Research Project on Ethno biology was started. Several leading institutions in India played a key role in the project. These include Botanical Survey of India, National Botanical Research Institute, Regional Research Laboratories, Forest Research Institute and several Universities in India and abroad. No explicit reference, however, was seen on indigenous forest management systems. In 1982: Society of ethno botanists established in India under the Chairmanship of Dr. S.K. Jain, the legendary ethno botanist often referred as ‘Father of Indian ethno botany’. The Universal Declaration of Human Rights, 1948 became the philosophical basis for the Working Group in Indigenous Populations created in 1982 under the structure of the UN SubCommission on the Prevention of Discrimination and Protection of Minorities (Purcell, 1998). IUCN Working Group on Traditional Ecological Knowledge established. The Publications coming from the members of the WG include Johannes (1989), Williams and Baines (1993) and Berkes (1999). In 1989: Publication of a journal ethno botany started, to disseminate original research reviews, and articles on ethno botany of various tribes, including ethno-medicine, ethno-chemistry, ethno-pharmacology and ethno-taxonomy. In 1992: The Rio Summit results in international instruments such as Convention on Biological Diversity (CBD) and Convention to 19 Combat Desertification (CCD) providing the space for recognition of indigenous knowledge. Agenda 21 and Rio Declaration on Environment Development become instrumental to promote the cause of indigenous knowledge. Arising out of Rio Summit the Non-legally binding Authoritative Statement of Principles for a Global Consensus on the Management, Conservation and Sustainable Development of All Types of Forests (the Forest Principles) established the importance of indigenous knowledge. The Kari-Oca Declaration and The Indigenous People’s Earth Charter presented at Rio Summit. In 1993, indigenous people under the banner of various Civil Society Organizations bring forth the Mataatua Declaration on Intellectual, Cultural and Scientific Rights of Indigenous Peoples. In 1994, the Santa Cruz Declaration on Intellectual Property Rights and Biodiversity and in 1995, Institute of Ethno-biology was established in India. Intergovernmental Panel on Forests (IPF) established to promote the implementation of Forest Principles and created further space for Indigenous Knowledge. In 1996, the term ‘ethno forestry’ was coined. Material defining the scope, classification and other aspects of ethno forestry appeared (Pandey, 1996). 5th International Congress on Ethno biology held in Nairobi, 2-6 September 1996. It has the theme ‘ethno biology and conservation of cultural and Biological Diversity’. IUCN’s World Conservation Congress adapts resolutions regarding indigenous peoples and their knowledge. Meeting of Indigenous and Other Forest Dependent People on the Management, Conservation and Sustainable Development of All Types of Forests attracts 100 indigenous groups and organizations. Leticia Declaration put forth. In 1997: XI World Forestry Congress, Turkey accords acceptance to the term ‘ethno forestry’ and a paper titled ‘ethno forestry by Indigenous People’ examined the subject (Pandey, 1997). 20 Dissertation on ethno mathematics A number of dissertations on ethno mathematics are reported in different parts of the world. A number have been submitted in Brazil and in Spain. These are effective research contributions which added significantly to the area. This is a report on a number of them. In March 1995 Gelsa Knijnik submitted to the Faculty of Education of the Federal University of Rio Grande do Sul, in Porto Alegre, Brazil, a thesis under the title Cultura, Matemática, EducaÁ“o na Luta pela Terra [Culture, Mathematics, Education in the Struggle for Land] . This very important work is the result of several years of research among teachers of the so-called "Movimento dos Sem-Terra". This is a political action with the objective of occupying the lands which, according to Brazilian constitution, are subjected to expropriation for land reform. The effective possession of these large tracts of land after the occupation implies several legal démarches which may take years, normally about five years. Meanwhile, those occupying the lands were confined to these areas and have to develop their own social structures: schools, medical assistance and production. They could not leave the territory and the support they received was nonpermanent, obeying humanitarian demands. In this period of confinement they had to rely on their own resources. These rural populations had a minimal education and had to run their own surveying and land demarcation practices, and the production system, as well as their schooling. There was so much mathematics in all these activities. The ethnographic research of Gelsa Knijnik had focused on identifying the Ethno mathematics of these processes and giving the supporting instruments to integrate these practices in a school mathematics curriculum relevant for their immediate needs and allowing the transition to the official school system after overcoming the legal obstacles. How to conduct the teacher training for this parallel educational system, relying, of course, on the human resources provided by uneducated confined 21 population, was a major challenge. The thesis of Knijnik had presented a socio-political and pedagogical study of these issues, always stressing the Mathematical content in every step of the process. The theoretical framework included a thorough discussion of conceptual aspects of ethno mathematics. In April 1995 Adriana Isler P. Leite presented a dissertation to the Programa de Pos-GraduaÁ“o de EducaÁ“o Matemática of the Universidade Estadual Paulista/UNESP at Rio Claro, under the title A Brinadeira é Coisa Seria: Estudos em Torno da Brincadeira, da Aprendizagem e da Matemática [Playing is serious: Studies about playing, learning and Mathematics] . The dissertation was the result of an extended ethnographic research over three years involving children aged between 5 and 8 years old. The focus was to understanding the way children play spontaneously and recognizing the Mathematics contents of these activities. The theoretical framework was ethno mathematics and the ethnography adopted, with the analysis of about 60 hours of video taping, lead to an important contribution to understanding the formation of mathematical concepts in early childhood. It was of much importance to the conceptual discussion of the nature of ethno mathematics in view of the theories of cognition and learning, particularly of Vygotski. Marianna Kawall Leal Ferreira submitted a dissertation to the University of S“o Paulo on Da Origem dos Homens a Conquista da Escrita: Um Estudo sobre Povos Indigenas e EducaÁ“o Escolar no Brasil [From the Origin of Men to the Conquest of Writing: A Study of Indian Peoples and School Education in Brazil] dealing with the construction of knowledge in an Amazonian tribe. Very careful research was conducted among a number of different tribes of the Parque IndÍgena do Xing. A variety of cultures provided the author with the opportunity to understand the historical and philosophical ground upon which these tribes built their 22 knowledge. Several aspects of Indian culture, as seen in the schools of the tribe, are analyzed, focusing on the educational process which gives emphasis on the transmission of "official" knowledge and values. SÙnia Maria Clareto worked in a small fishing community on the seashore (caiÁara) in the State of S“o Paulo. The dissertation was an ethnographic study of the space perception of school children after taking classes of Geography. Specifically, what was the perception of the child as "standing upside down" after being exposed to a terrestrial globe. A most interesting dissertation entitled A crianÁa e seus dois mundos: A representaÁ“o do Mundo em crianÁas de uma comunidade caiÁara [The child and its two worlds: The representation of the World by children of a "caiÁara" community] based on this research was submitted to the Universidade Estadual Paulista/UNESP at Rio Claro. Samuel Lopez Bello submitted a dissertation on EducaÁ“o Matemática IndÍgena -- Un Estudo Etnomatemático dos Indios Guarani-Kaiová do Mato Grosso do Sul [Indigenous Mathematical Education -- An Ethnomathematical Study of the Guarani-Kaiovaa Indians in the State of Southern Mato Grosso]. The dissertation referred essentially to questions about education, particularly mathematical education, among Indian communities in a somewhat remote State in Western Brazil. The main objectives were to identify and recognize different ways of explaining and knowing in the Guarani culture and to relate these with the strategies of formal schooling. The ethnographic research gave origin to new methodologies and techniques on participant observation. New interpretations of cognitive models among indigenous cultures resulted from the research. An important result was the recognition of the role of the history of the individuals and of the communities in the cognitive processes. Among the variety of topics discussed, particularly important were questions about shapes, measures and counting. 23 The thesis of Gelsa Knijnik was published, with slight modifications, as a book with title Exclus“o e Resistencia: EducaÁ“o Matemática e Legitimidade Cultural [Exclusion and Resistance: Mathematics Education and Cultural Legitimacy], Artes Médicas, Porto Alegre, 1995. The thesis of Maria Luiza Oliveras Contreras was also appeared as a book. The mathematical part of the dissertation of Mariana K. Leal Ferreira became a booklet: Com quantos paus se faz uma canoa! A Matemática na vida cotidiana e na experiÍncia escolar indÍgena [With how many logs one can make a canoe! Mathematics in the daily life and in Indian school experiences], MEC/Assessoria de EducaÁ“o Escolar IndÍgena, Brasilia, 1994. The others will appear only as papers presenting partially the important results. The fact that they are in Portuguese and Spanish limit, in a sense, the accessibility to these important contributions to Ethnomathematics. Indeed, a considerable amount of research in these fields comes out of research in Latin America, as well as in Lusophone countries in Africa and in Portugal and Spain, but language is still a barrier. Fortunately, much of the important work of Paulus Gerdes has been translated into English and French. These works reveal the large scope of Ethnomathematics. Indeed, we can hardly classify these as Mathematical works. This is, in a sense, a sort of "epistemological aggression". The distinction between Ethnomathematics and Ethnoscience, Ethnohistory, Ethnomusicology, Ethnomedicine, Ethnopsychiatry, Ethnomethodology, becomes very artificial and difficult to establish. Even in the Mediterranean civilizations and as recently as the XV century, Mathematics and Religion, the Sciences and the Arts, are difficult to separate. This leads us to look into different ways, styles, techniques of explaining, of understanding, of coping with the surrounding natural and cultural environments as the essence of the History of Ideas. In order to organize these studies, we have to coin a few words to express the above: 24 different ways, styles, techniques of explaining, understanding, coping with mathema, the surrounding natural and cultural environments (ethno). Thus we have the word Ethnomathematics, which in this conception obviously incorporates Ethnoscience. The history of ethno science is not long. For the first time, at least in the west, ethno science study was made by Chalk Buttes, (1984-1985), the Northern Cheyenne Cultural Commission, the Fort Peck Tribes and Custer National Forest with funding from the National Park Service did a cultural assessment of the Chalk Buttes area in southeast Montana. The project involved an encampment of traditional Elders at Chalk Buttes. The Elders were interviewed and an Indian student ethnographer trained. The project provided the Northern Cheyenne and Fort Peck Tribes and the Forest Services with a photographic (video and still) record, oral history transcripts and a technical report concerning the traditional cultural significance of Chalk Buttes. Ethno science is currently working for the Kalispel Tribe Natural Resources Department since 1999 and is still going on. The project involved an archaeological inventory of traditional lands, ethnographic interviews with Elders to determine cultural significance and compiling documentary data (site files, historical documents, maps etc.) in support of the future Kalispel Tribal Preservation Office. If we look at the history of the philosophy of science, we find that the development of the underlying methodology and foundations of the scientific process had shaped science. If proceed towards the history we see that Plato was the follower of the innate knowledge of human beings and hence learning according to him was the process of uncovering the memories. For this reason he is regarded as the father of Western philosophy. Using his philosophy, many elegant mathematical theories to explain the cosmos have been generated. Aristotle believed in comparison of knowledge from what is already known and then making deductions 25 (http://www.experiment-resources.com/history-of-the-philosophy-of-science.html). But his knowledge proved to be a general rule to a particular and specific circumstances but it could not explain the universe. In 1620 the great philosopher Francis Bacon came up to explain about the universe with the induction which was based upon the experimental science (ibid).. The theoretical physicists like Einstein, Hawking and Feynman generated different mathematical formulas and models to explain the unknown areas of quantum physics and cosmology ((ibid).. But Bacon philosophy of induction based upon the experimental science has planted the seed of the first division between science and theology ((ibid). Later on Galilean expanded Baconian views of science to another level through experiments taking mathematics and geometry as the basic concepts ((ibid). This way he had set the first example of using modeling as a foundation of the scientific method. Hence science began to deviate from the philosophy and by 19th century most of the religious philosophers began to felt that science has undermined the religious scriptures and the philosophers began to address this issue. But most of the philosophers of science themselves were the believer of gods ((ibid). Karl Popper brought the idea of falsification to differentiate between science and non science ((ibid). He stated that the metaphysics was non-observational and cannot be falsified and therefore cannot be science. Social science, psychology, anthropology are not science either as these field rely upon case studies and not falsifiable. Thomas Kuhn brought a revolution in science by introducing the idea of paradigms and paradigm shifts ((ibid). This idea of Kuhn had brought a complete change in view in science. In this way we can see that the modern science had actually generated from the old philosophies which gradually deviated from the philosophies. This helps us understand that philosophies 26 contains science and traditional knowledge has also science which if we deeply go into it we would be able to contribute a new knowledge in it. Ethno science research in Nepal Hence the history of ethnoscience in the world was not too old and in Nepal ethnoscience is little explored in the field of science education. In Nepal, Bal Chandra Luitel (2003), Sashishekhar Belbase (2006) and Ramchandra Dahal (2008) has done research on ethno mathematics. But no one so far in Nepal has done the research in ethno science. The current study on ethno science finds out the gap between traditional science of the grandparents and the school science of the grandchildren and the interrelationship between the traditional methods and science. This study does not seek ethno science but attempts to explore the intergenerational value differences in scientific knowledge between the grandparents and the grandchildren and also shows the ways to bridge intergenerational knowledge through educative process. Conceptual Framework Conventional Methods Modern Methods Ethno-science Pure-science World of Tradition School generation Intergenerational Intergenerational World of Science 27 This framework explains how knowledge has been transferred from generation to generation. Knowledge has been presented here to transfer in two ways: through intergeneration and school generation. Intergenerational knowledge transfer happens by means of social network – culture, society, family, etc. Transfer of knowledge and skill from the grandparents to parents is the perfect example of the intergenerational knowledge transfer. Likewise, the society and the cultural practices in the family also pass on from one generation to the other. In the school generation, the knowledge is transferred formally and pedagogically. Classroom teaching by the teacher to the students is the perfect example of the knowledge transfer through the school generation. It is generally found among old generations that the knowledge is very much guided by the utilitarian thinking, while the knowledge among the new generations is guided by the aesthetic aspects of it. When it comes to science, a demarcation is clearly visible in the literature as hard science and soft science. The hard science is generally thought of as the one that can be objectively quantified and studied. They are the ones where the scientific method applies. Math and physics are definitely hard sciences. World of science is perceived as a hard science. Soft sciences are less quantifiable and considered more subjective. The "social sciences" such as sociology, anthropology, history and political science are obvious examples. World of tradition is perceived as soft science. The conceptual frame above shows that through the context of Nepal world can be viewed in two ways: one in terms of World of Science and the other in terms of World of Tradition. World of Tradition is concerned with the knowledge obtained through experiences by our past generations and that has been passed down from generations to generations. World of science is concerned with the knowledge developed through various kinds of scientific research. When we view 28 through the lens of science, we come across two streams: Conventional Methods and Modern Methods. If we follow through the conventional methods, we reach to the Ethno- science but, if we go through the Modern Methods we would arrive at the Pure-science. Likewise, if we view the world through the lens of Tradition, we would come across two streams: Ethno-science stream and Pure-science stream. If we follow through the Ethno-science stream we would end up at the Conventional Methods but, if we proceed through Pure-science, we would end up at the Modern Methods. The current thesis is based on the World of Tradition. Through the World of Tradition it has followed the two streams: Ethno-science of the old generation and Pure Science of the new generation and their similarities and dissimilarities. It has also shown how ethno-science has shaped the conventional methods in our indigenous society of our old generations while the Modern science has shaped into Modern methods in the contemporary society. My concern is that the modern new generations are forgetting the conventional methods and fetching the Modern Methods without connecting with the lived roots. If we do not preserve our conventional methods, very soon it would perish forever. At the same time, if we failed to connect the lived root the generational gap will be widen for not but in understanding to each other. As far as my understanding is concerned, very few studies have been made in Nepalese context in regards to ethno-science research. I felt it quite important and hence immersed into the research on the science of our grandparents’ traditional methods. Some of the traditions as shown in the table below describe the basic tenets linking between inherent practices and scientific reasoning behind such practices. 29 Daily living practices S. No. The Traditions The Science Contains calcium: strengthen teeth; basic nature: Paan (brittle nuts) is eaten after 1. controls acidity in the stomach: contains leaf: the feast during various festivals. provides fibres for cleansing the stomach. Calcium ions which makes the pickles tasty and Pickles are grinded on the stone 2. also provides the mineral calcium for the slates. It is a tradition. strengthening and development of bones. River water should be obtained from Hygienic, contains plenty of calcium and the river before the crows wake up magnesium ions, tasty. Water brought to the houses early in the morning. It is a tradition. through the lead pipes and the polythene pipes are 3. health hazardous. TeeteKkarela (Bitter Gourd) is fed to 4. people who are unwell. Controls the blood pressure Lion is sketched by an artist with his 5. own rituals to cure Janai Khatira To cure the viral infection of the nerves ( Harpes Zoster) Use of jatto in curing the Jabi 6. Khatira (Morgellons) Kills Morgellons parasites 7. Straw mattress is used for beddings. Maintains the correct body posture 8. Slanting roofs. To diffuse the sun radiation 14” thick wall in the houses to make To absorb the shock from earthquake 9. the house strong. 30 Attic of the house is left vacant for For circulation of air so that lower floor is cool and the cats to live. refreshing. Kitchen and dining floor at the top Less likely to be attacked by germs and bacteria; floor. It is a tradition. free of heavier harmful gases. 10. 11. Middle floors bed rooms and living Likely to have fresh air with high amount of 12. rooms. It is a tradition. oxygen, less amount of heavier harmful gases. 13. Toilets at the ground floor: it would Prevents the spread of germs / bacteria and the make the house sinful if made at heavier gases in the upper living and dining floors. upper floor. Brushing by coals and charcoals to It is highly absorbent material therefore cleans the keep teeth clean. teeth. Ash of incessant to cure abdominal It is highly absorbent material absorbs the poisons pain. It is a tradition. produced due to food poisoning. 14. 15. People wash clothes with ash of Ash consists of mild alkali and germicides. 16. burnt straw. Chulo- the traditional stove is used Latent knowledge of conduction, convection, for cooking food. radiation 17. Smoke consists of carbon particles which are 18. Smoke used to dry out lumbers highly moisture absorbent. 19. Suraii used to keep water cool Earthen material are porus bad conductor of heat 20. People take bath with rittha Needs to study science behind it. Should not sleep with head facing Needs to study science behind it. 21. towards north. 31 Looking at chamal some old people 22. can tell the past happenings and the Needs to study science behind it. future of a person. By worshiping god, some old people can bless a woman with a son. This is 23. still in practice in many places of Kathmandu and remote places of Needs to study science behind it. Nepal. It is the main energy to initiate most of the 24. Fire is regarded as god. reactions. Urine of cow is fed to a child who 25. cries and weeps a lot. Needs to study science behind it. Cows’ dung is used to smear the 26. floor with red mud to clean the Needs to study science behind it. house. Bhoot (Spirit) is pacified by 27. providing food called bhau to cure Needs to study science behind it. various kinds of diseases spread in the family. People worship the foundation before making a house. They believe that if 28. not worshiped the foundations the house would be full of problems and very often be troubled by the spirits. Needs to study science behind it. 32 Shraddha is often done by the families of a dead person for the dead person. Food, water and alcohol are provided to the dogs and crows. If the rituals are conducted with following 29. up the rules and regulations, Needs to study science behind it. whatever the dead person likes, that is eaten by the dogs and crows. There are cases where the dogs have drunk alcohol and crows have taken cigarette. 30. Gonga appa Lightening arrester It would be interesting to find the scientific reasoning behind the following practices of our traditional people who follows the following rituals at different stages of human beings. S. No. The Stage Name Description The rite of conception, a prenatal ceremony, 1. Before Birth Garbhadana performed at the time of conception Ceremony performed seeking a male child or to 2. Before Birth Pumsavana increase the chances of the birth of a male child. 33 The parting of hair ceremony seeking safe delivery. Simantam or 3. Before Birth This is usually performed for women and Simatonnayana celebrated by the women. 4. At birth Jatakarman 5. Childhood Namakaranam At the time of birth and before severing the cord. Naming ceremony performed usually on the 10th or 12th day after birth. Performed on the first outing of the baby and 6. Childhood Niskramana usually involves the first viewing of the sun. Performed on the occasion of the first feeding of the child with solid food such as rice, ghee and 7. Childhood Annaprasana lentils. Now a days this ceremony is performed both for boys and girls. The tonsure ceremony performed usually in the 8. Childhood Chudakarana first or third year of the child's birth The ear piercing ceremony performed during the third or fifth year. Now a days this ceremony is 9. Childhood Karnavedha performed mostly for girls as boys are reluctant to get their ears pierced for fear of ridicule or looking feminine or orthodox. 34 Performed on the occasion of a child's initiation into education. Now a days this is performed on the 10. Student Vidyarambha first day a child goes to school and starts practicing the alphabet beginning with the letter AUM. The ceremony involving the wearing of the sacred 11. Student Upanayana thread, which is confined to the upper three castes only and performed between the ages of 8 and 24. The ceremony marking the beginning of the study of the Vedas. Now a days not all children show 12. Student Vedarambha interest in the study of the Vedas. The priestly profession is not very fetching. So this ceremony is performed in select cases only. The ceremony marking the first shaving of the beard or the approach of manhood. In case of girls, in some regions, there is a corresponding ceremony 13. Student/Adolescence Kesantha to mark the beginning of menstruation or change in dress from a gown to a sari. 35 Performed when a student completes his education and returns home from the school. In olden days the schools existed in remote places. Once a student left home for education, he would return only after several years of study in the house of his teacher. So his return was a matter of joy and 14. Student Samvartana celebration for the family because the child not only survived the tough conditions of life in gurukulas but also acquired knowledge of the scriptures. Now a days the schools are located mostly in the same village or town where the child lives and the child is hardly separated from his or her parents during studies. So the ceremony is truly ceremonial. Marriage ceremony. Child marriages were the order of the day in ancient times. Now a days they 15. Householder Vivaha are legally banned and also out of favor. Marriage usually marks the beginning of life as a householder. 36 Funeral rites performed after death and up to 15 days. Usually involves cremation rites, making offerings to gods and ancestors seeking the soul's 16. Death Antyeshti comfortable journey to the worlds of light, scattering of ashes in select places, and serving of food to the relatives and among the poor. (http://www.hinduwebsite.com/hinduism/concepts/samskara.asp) 37 Chapter III Methodology Ethnographic approach is considered to be the most appropriate tools in the study of social phenomena and especially human social behaviour (Giddens, 2001). Wherever it is possible, ethnographer provides richer information about social life than most other research methods. Once we see how things look from the inside of a given group, we are likely to have a better understanding of why members act as they do. We may also learn more about the social processes which intersect with the situation under study. Ethnography is often referred to as a type of qualitative research, because it is more concerned with subjective understandings than numerical data (Giddens, 2001). As such, elements of an ethnographic approach such as, close and extended observation of people’s habit and attitudes; interviews and some focused interactions were applied to enrich the process of generating the knowledge. The study is partly also a comparative study as it tries to compare social behaviour between two different generations: grandparent, parents and grandchildren. Comparison between these groups shed some light on the changing patterns in living style, and their perception and practices on living a healthy and peaceful life. The generational gap associated with the innovations in new technology is also discussed in this study wherever appropriate. Selection of the Site Sites for this study have been selected purposefully, meeting the requirements and necessary conditions to address the research questions. I have chosen family houses with three generations living together so as to assess the generational differences in terms of their attitudes and behaviour. 38 For this purpose the site located in Pokhara was selected as there were several houses that provided suitable conditions for this study. These houses in the community were selected and studied for nearly a month. In all those houses, there were families of at three generations – grandparents, parents and grandchildren. They were all the newar families. They mentioned that their previous location were said to be in Bhaktapur, Banepa but they did not know why and when they were migrated to Pokhara. They all followed the Hindu religion but only the grandparents were very conservative to the religion but the parents and the grandchildren were not much conservative and stubborn to the religion. Some of the house families were very rich while others were poor. But the living patterns of all these families were almost similar. They do not spend money lavishly. Their fooding and clothing were very similar. Two of the families’ parents had built up new houses but they still used to live in the same old houses with the grandparents and the new houses were given in rent. Tools/ Instruments I had open discussion with the family members just to be familiar with them. Then I gradually entered into the structured discussion just to retain them to the focus of my interest. Whenever required or possible I did observation as the primary approach to data generation for my research. I also did the focus group discussion so that I could reach to the strong truth rather than discussing individually where I could obtain the false information. Participant Observation Following the characteristics of the participant’s observation, I had spent more than two months in one of the old house. I had observed in detail the different things present in the house. Then I discussed with the grandparents and the other family members. In the beginning the clear cut information were not obtained. But when I stayed in the same house with the family members for 39 many days, I became very much familiar with them that they paid interest to my every quarry and gave me every possible answer they know without any hesitation. They also showed me the different old tools and materials and showed me their applications. I took the photos of all those things. I had clearly informed them that I was studying about the old methods and instruments which are being vanished in the new generations and told them that my study would help to preserve the old methods, styles and the materials. Knowing this they were very happy to help and I found that they too were worried about the disappearance of the old methods, styles and the materials and they hate the new methods and styles. Focus Group Discussion Altogether eight old people from the studied houses were requested to come for the small party in the house where I lived. I had informal discussion at the beginning and later on I gradually drew their attention in the jeopardizing of the old methods, styles and the materials. We had a long discussion of about three hours. Time to time I had to interrupt very tactfully to bring them to my focus of interest because they often go out of tract. Sometimes the house owners used to become very impulsive launch invectives upon the habits of their sons and the grandsons. Some of them kept on speaking monotonously and often used to go out of tract and if I interfere to bring it in the right tract he did not easily hear me. If I speak very loudly I was in fear that they could mind. So I had a lot of trouble in conducting the focus group discussion. But I had lot of information from them. Again after forty days I conducted the focus group discussion but at that time only five old people were able to come as those old people were ailing. 40 Data analysis For data analysis, I had first of all gone to visit the old houses and observed different kinds of old houses and different kinds of old practices carried out by the old people. I have collected those data and the beliefs of the old people. I then looked through the lens of the science. I have found that they were very closely linked with the science. Notice things Collect things Think about things Analysis through qualitative inquiry is done through three processes: Noticing/observing things, Collecting/gathering information, and Thinking/interacting about interesting phenomena or things (www.qualitativenalysis.com). The figure above represents the process and the relationships among its parts. As the figure suggests, the Qualitative data analysis process is not linear. The qualitative process adopted the following characteristics (www.qualitativenalysis.com): 1. Iterative and Progressive: The process is iterative and progressive because it is a cycle that keeps repeating. For example, when we are thinking about things we also start noticing new things in the data. We then collect and think about these new things. In principle the process is an infinite spiral. 41 2. Recursive: The process is recursive because one part can call us back to a previous part. For example, while we are busy collecting things we might simultaneously start noticing new things to collect. This has happened several times during my research. When I visited the old houses, first of all I was curious to the structure of the house. Most of the old houses were of similar kind. It is of three/four story houses made of unbaked bricks and special type of mud. There were floors and all the floors have its own importance. There is an attic, which seemed to me is a place without any useful purpose but it has its own scientific purpose. The kitchen floor was made just below the attic and the floors below the kitchen floor was used for living and bedrooms. The bottom floors were not used for living or cooking purposes. Only toilets and bathrooms were made in the ground floors. While observing the houses, I could see the different activities of the old people and other house members. Each and every activity of the members of the houses had drawn my attention and it was quite difficult for me to focus on any particular point. I had several curiosities. How these old people were very healthy? What was the mystery behind this? Their way of thinking was very different than the way of thinking of the new generations. Why was this? What they ate? I focused my observations on it. I found that they liked old cuisines. While observing the house, I saw the young grandchildren coming from the school. They were given food cooked in a chulo. The children then began to do their homework. I saw in their book the terms heat chapter were there were the terms conduction, convention and radiation. Just to be familiar with the children I asked the children what is meant by those terms. They explained it based upon the experiment they had done in the school. I asked where they could give any example where we could observe these terms at their own home but they were not able to answer. 42 At this moment my attention was drawn in towards the chulo. I explained to the children how heat was being transferred in the chulo. Hearing my answer the children were very clear and happy. After few days when I visited the other old houses, I had found the other houses were also of similar nature. The chulo was made at similar place. This had sparked my mind with the question why chulo was made at similar place? I discussed about the chulo with the grandparents and I found that they had a belief of formations of cloud in sky from the smoke released from the chulo. Apart from that they said smoke was essential for drying woods, lumbers and to keep the room warmer. Hearing this I felt that the grandparents were unaware of the hazardous effect of the smoke. They said smoke could be used for making gazal. They also said that the firewoods produced smoke at the same time it also produced ash, which was very essential cleaning powder. They also said that a cup of water with little ash would cure abdominal pain. This has really made me very excited to learn the clever use of the firewood by the old people. The old people worshiped god every morning and also go to temple. They called it a puja. In every puja they used tika of abir (vermillion). My curiosity rose regarding the use of vermillion. In the room of the grandparents I had found old suraii. They use for drinking water. They were still using the suraii for drinking water. They said they keep fresh water brought from the river in the past, as they did not have tap in the past. My curiosity arose regarding the safety of water obtained from the river. But when I looked from the scientific point of view these old people’s practices were really very scientific. 43 These different expositions mentioned above gave way to bring the phenomena under the Research Ethics In this study I was fully aware of some ethical issues and questions related directly to the respondent under study. To inform about the study, I took their permission and concepts for the time needed, observing their activity and recording their views in written form and in photos (Oliver, 1997). In addition, I also had their acquiescence whether or not I should share their views with others, whether to reveal or to conceal their identity in the public spheres in order to discuss for the study purpose. The following excerpts that I have generated are worth citing: Ethics embody individual and communal codes of conduct based upon adherence to set of principles which may be explicit and codified or an implicit and which may be abstract and impersonal or concrete and personal. For the sake of brevity, we may say that ethics can be dichotomized as ‘absolute’ and ‘relative’. When behaviour is guided by absolute ethical standards, or higher order moral principle can be postulated which is invariant with regard to the conditions of its applicability – across time, situations, persons and expediency. Such principled ethics allow no degree of freedom for ends to justify means or for any positive consequences to qualify instances where the principle is suspended or applied in an altered, watered – down form. In the extreme, there are no extenuating circumstances to be considered or weighed as justifying an abrogation of the ethical standard. (Cited in Louis Cohen, et. al, 2000, p: 58) The best way to deal with ethical issues is that the researchers should be aware of the consequences so that they understand the importance of honesty and sincerity in research (Wolf & Pant, 2005). I followed these authors for ethical considerations of this study. Moreover, I 44 was aware of the legal provisions and the codes of ethics and standards set by professional associations for the conduct of research. 45 Chapter IV Science behind traditional practices The hard sciences are generally thought of as the ones that can be objectively quantified and studied. They are the ones where the scientific method applies. Math and physics are definitely hard sciences. Soft sciences are less quantifiable and considered more subjective. The "social sciences" such as history and political science are obvious examples. In this chapter the indigenous concepts, practices, and attitudes related to ethno science were generated by using different tools such as participant observation, follow-up interview, and informal discussion are discussed. These discussions have been grouped into two major domains: Medicinal or Health Related Practices and Daily Living Practices. Medicinal practices include traditional methods used in healing illness. Daily living practices include structure and use of the house, and the household chore confined mostly in and around the kitchen. The kitchen is the area where most routine and daily chore happens and that it is also an area where the household functions have been carried out throughout the historical periods. A. Daily Living Practices: 1. Structure of the old houses In my visit to the old houses, I found similarity in their structures. Almost all the old houses were built with slanting tiled roofs. At the one end of the roof a hen shaped tile is adjusted The modern houses were mainly made with kausi. In some of the houses slate were found to be as roofing material. The houses were built of bricks and mud mortar with a 14” thick wall. The houses were built on a ‘wall system’ basis which is considered as very safe in earthquake point of view. The 46 In the wall system houses, the walls are made very thick. It is far more thicker than the houses built by modern methods with cements and sand. In 2045BS, an earthquake of 7 richter scale stroke with its epicentre in the district of Udayapur. It had a massive effect in the Kathmandu Valley as well. So many houses including the houses built by modern methods were collapsed but the traditionally built houses did not collapse. This shows that what the old people say about the safety of the old houses in every aspect literally true. Such houses even have greater resistance to earthquake. The houses commonly had four storeys in it. The topmost storey was often not usable to live as there’s little room due to the slanting roof and it had also limited light. But, this storey was found commonly used as a storeroom. In some houses, it was used as a worship/prayer room. A small window was kept on the roof had allowed enough light in the room for storing goods as well as for the prayer. The fourth storey (second top floor) was found commonly used as the kitchen. It is called “bhanchha kotha” which usually combines both kitchen and dining together. The second and third storey was used as bedrooms and living rooms. Usually, there were plenty of windows in these floors that were artistically carved enhancing elegance of the entire house structure. The ground floor is used for business and usually it was turned as shop. Toilets were made separately in the ground floors. The parents of the same house had also built a modern house. Some had built one story house while others had built two/ three story houses. In their houses, I found that all the rooms and the kitchen and the toilets were built in the same floor. This very much contradicted with the old concepts and ideas. Further scientific explanations of these two generational understandings have been presented in chapter V. 47 2. Ethnoscience in Chulo The chulo is an earthen stove used for cooking in most of these houses that was observed. It is made up of clay and unbaked bricks. There are usually two pan holes at the top while there is a small hole in the façade of the chulo. The chulo is specially/ tactfully made in such a shape that fire wood burn easily and that sufficient fire/heat is directed towards the pan holes. When asked to the parents about why they are still using it, they said that, “it is, compared to the modern gas / kerosene stoves, is much safer”. They said the foods prepared on it are far tastier than in other stoves. I have experienced the taste. The food that was prepared in these cholo had a very different taste. The Traditional Chulo The parents and grandparents of the same house regard it as ‘outdated’. They did not find it comfortable to use. Moreover they did not like the smoke and dust it produces. They could not entre into the chulo with their shoes as the grandparents absolutely a sin. In the modern gas stoves and in the heaters they used it with their shoes on. The grandparents said ‘ it is very cold in the winter season while it is very hot in the summer season in the new houses while it is just the opposite in the old houses". That is the beauty of the old houses. But the new generation hold 48 the knowledge differently. They said, ‘ the old houses are made of mud, clay and wood which are old fashioned, it is difficult to clean and does not look neat, trim and tidy. Everywhere everyone is replacing the old houses because they look old and absurd". Scientifically speaking, what the old generation had said is absolutely right. It is true that an old house remains warmer during winter and cooler during the summer. The main reason behind this phenomenon is that mud, clay, unbaked bricks and wood that constitute these old houses are very bad conductor of heat energy. Therefore during winter when people warm up the room by burning fire, the heat formed inside the room does not easily escape. It is the retained heat that keeps the house warm. In the modern houses, the constituents are sand, cement, gravel, baked bricks, metallic grills and windows, iron rods inside the pillars etc are all good conductor of heat energy. Therefore heat energy produced inside the room easily escapes. Likewise, during the summer season, heat energy from outside does not get transferred inside the house in the old houses while it does get transferred in the modern houses. We can also explain this through a small demonstration. Water kept in the suraii remains colder in the hot season and remains warmer in the cold season whereas the water kept in any metallic pot directly proportional to the temperature of the surroundings. Its additional scientific explanation has been presented in chapter V. 3. Location of chulo The chulo has extremely important place in our culture and therefore a great care is given in maintaining its cleanliness. Fire is considered a God and hence the fireplace – chulo – is considered as ‘God’s place’. For maintaining its purity, chulo is usually not made in the bottom floor as toilets are usually made in this bottom floor. When asked why the toilets cannot be made in the same floor, they said ‘no, it will impure our chulo’. These old people are not in a 49 position to accept the modern methods of building chulo and toilets in the same floor and that is also at the ground floor. When I ask them why such design is not acceptable to them, they state only the cultural reasoning ‘it is a sin’. Some additional scientific explanation has been presented in chapter V. 4. Cloud formation The old people have a belief that the smoke released from the chulo, which raises up forms clouds. For me, This is quite interesting. They showed me the smokes rising from the chulo going upwards which ultimately looked like the clouds in the sky. They also said it would then get thicken in the sky and then drops down in the form of rain. When I asked how it turned into the rain water, they replied it is the god’s power. The grandchildren of the same house say that it is not the smoke that forms the cloud but it is the rising water vapours that cause the clouds and the clouds would turn into rain. The grandchildren who said this were studying in class VII. More scientific explanation has been given in chapter V. 5. Additional importance of smoke The grandparents know the importance of smoke for other purposes as well. They often used smoke especially of the chulo for drying the firewood, the lumbers of the house. For keeping house warm, they also saw the importance of smoke. For rooms where there was no chulo they often burnt wood or straw to generate the smoke. They strongly believed that the smoke keeps the room warmer. They say electric heater heats only the specific part of the room but the smoke warms up the whole room and the house periphery. But this is very much disliked by the parents and grandchildren of the same house. Additional scientific explanation has been displayed in chapter V. 50 B. Health Related Practices 1. Health awareness of the grandparents: Grandparents use smoke for their daily life activities and they disregard the hazards of it. Along with questions in mind I asked the grandparents whether they were aware of the hazards that could be caused by the smoke. But they seemed to be less cautious in this regards. However I came to know that their mother who had spent most of her time in cooking food in chulo had chest pain problems that lead to her death. They were not aware of the hazards caused by the burning wood. But they were not in position to accept the hazards of smoke. They said that their death is natural as they were very old. Something had to happen to meet death at very old age that exactly the case happened with the great grandparents. This way they were not in position to accept the hazards of the smoke. Parents and grandchildren of the same house were not willing to stay in the smoke. They believed that smoke causes hazards to health. So they were willing to use heaters and gas stoves for cooking foods. But the grandparents want their daughter-in-laws to cook food in the chulo which produces plenty of smoke. But in spite of their willingness, I found that the parents cook food in the separate room while the chulo remained in the top floor only sometimes be used by the grandmother. 2. Clever use of the products of fire wood Grandparents have used the products of the burning wood in a clever way. The ash produced they used it as fertilizer, cleansing powder and also for treatment of abdominal pain. They fed little amount of ash along with one cup of water to the patient. They used the ash produced for cleaning the utensils. They used the coal and charcoal for brushing teeth. I examined their teeth, and found that it is shiny and healthy. I asked them whether they have used toothpaste or not. They replied that they have been using the coal and charcoal since the very young age and they 51 are comfortable with it. But the all the parents and the grandchildren prefer to use the modern toothpastes. They felt that coals and charcoals are dirty materials and very harmful. 3. Use of abir Another interesting part was that these grandparents do various kinds of puja to meet their demands. They said that their demands were fulfilled through such puja. In puja they frequently used the sapta rangin abir. They put tika made of abir on their foreheads. According to one of the old man who practiced yoga- was a Buddhist, who said the tika placed on the forehead would help to concentrate our mind which would greatly help to do meditation. Other old people regard it as a blessing of good fortune. 4. Use of suraii for storing drinking water The grandparents found them using suraii for drinking water where as their grandchildren drank water in the water bottles. It seems very easy to carry off the plastic water bottles. They are lighter and transparent and hence nice to look at. The suraii is an earthen pot which looks like a volumetric flask. Water kept in the suraii has a different taste and moreover water is cool, fresh and clean. The old people do not like to drink water kept in the water bottles and aluminium containers. 5. Pond water /river water is regarded as a drinking water. In the past days people used to collect water from rivers and ponds which they regard it as fresh water. At least water kept open outside the houses are regarded as the fresh water. Those old people were not in position to admit the water safely kept in the house as the fresh water. “So even the water kept in the filter was not the fresh water and not suitable for drinking” according them. 52 Chapter V Findings and Discussions The numbers of schools in the grandparents' period were very few. According to these grandparents the courses were not like the courses of the current children. Current children’s courses are very vast. Because they are vast children did not get chance to deepen them in all these courses. This is where I asked myself what has made the children different from their grandparents? Why the children did not try to explore the traditional knowledge of their grandparents? These questions lead me to know that that knowledge can be obtained from two ways: intergenerational carry over and school taught. Intergenerational carry over continued through social network – culture, society, family, etc. What to wear at different occasions, what to eat at different occasions, where to cook food, how to cook food, all these knowledge gained by the children has solely been transferred from the generation to generation. But in school, the knowledge was transferred formally. In the classroom, the teacher transferred knowledge to the children. This is a different way in gaining knowledge. But I realized that the old generation learnt and transferred their knowledge by dint of utilitarian thinking, while the knowledge among the new generations was guided by the aesthetic aspects of it. Hence the children were gaining both traditional knowledge based upon the utilitarian thinking and the knowledge based upon the aesthetic aspects. When I reflected about science, I came across hard science and soft science. The hard science is generally thought of as the one that can be objectively quantified and studied. They are the ones where the scientific method applies. Math and physics are hard sciences (www.ethnoscience.com). 53 Soft sciences are less quantifiable and considered more subjective (ibid). The "social sciences" such as sociology, anthropology, history and political science are obvious examples. World of tradition is perceived as soft science. The modern children are simultaneously gaining the knowledge both through the world of science and the world of tradition. My conceptual frame shows that through the context of Nepal world can be viewed in two ways: one in terms of World of Science and the other in terms of World of Tradition. World of Tradition was concerned with the knowledge obtained through experiences by our past generations and that had been passed down from generations to generations. World of science is concerned with the knowledge developed through various kinds of scientific research done in the West. When we view through the lens of science, we come across into two streams: Conventional Methods and Modern Methods. If we follow through the conventional methods, we reach to the Ethno- science but, if we go through the Modern Methods we would arrive at the Pure-science. The current thesis is based on the World of Tradition. Through the World of Tradition it has followed the two streams: Ethno-science of the old generation and Pure Science of the new generation and their similarities and dissimilarities. It has also shown how ethno-science has shaped the conventional methods in our indigenous society of our old generations while the Modern science has shaped into Modern methods in the contemporary society. My concern is that our children are finding the huge gap between the modern and the traditional sciences. Because of this, modern generations are forgetting the conventional science and fetching the modern science without connecting with the lived roots. If we do not examine the connection of our conventional science, it will die out very soon. At the same time, if we failed to connect the lived root the generational gap will be widened. 54 1. Knowledge on house construction Old houses were built with slanting tiled roofs. One of the scientific reasons for making slanting roofs was to protect the direct heat of the sun. Making the surface slant would disperse the focusing radiation of the sun which prevents too much heating of the houses (Mee et al 1971). At the one end of the roof a hen shaped tile was adjusted. The grandparents told me that that has a very important role to protect the house from the lightening. Lightening arresters were also seen in some of the modern houses. A thin wire was adjusted at the top of the house and the end of the wire was grounded. The old people told me that there are temples everywhere which has a gajur. They were specially meant for lightening arrester. Thunder and lighting is a phenomenon of spark discharge due to the unlike charges carried by clouds. When clouds carrying great quantities of positive charge and negative charge come together, the strong attractive force between them will puncture the insulating air and produce strong spark discharge, accompanied by a tremendous explosive noise (Hanfu 1985). When a charged cloud nears the ground, it will induce unlike charges in the ground underneath. The induced charges tend to accumulate on the towering objects, such as big trees, high buildings, chimneys and other high objects. If the charged cloud is very close to the ground, with the increased accumulated charge on these objects, a huge spark discharge will occur between the cloud and the high points of these objects. This is known as a lighting stroke. Objects struck in this way by lighting will be damaged to varying degrees. If someone happens to be close to these objects, he will get injured or killed. However, people in a car will usually be safe, even if the car is struck by lightning, owing to shielding afforded by the metal body of the car (ibid). The way to avoid being struck by lighting is to install a lightning rod on high buildings. A lighting rod is a pointed conductor installed on the top of a building and grounded through a 55 thick copper wire. The grounding end of the wire is either buried in wet earthy several feet deep or connected to a metal plate buried deeply. When a charged cloud approaches, the induced charges on the ground will be attracted through the grounded copper wire to the lighting rod where point discharge takes place continuously. In this way, the destructive spark discharge of a lighting stroke is avoided (ibid). The sandy soil in the mountain slopes and other solid particles formed from rocks can adsorb ions from aqueous solutions, in most cases negative ions, thus the concentration of positive ion in the solution is increased. When such aqueous solution permeates from the top to the bottom of a mountain under the action of gravity, the higher region of the mountain will show negative potential owing to sandy soil there with their adsorbed negative ions, while the bottom of the slope will show positive potential due to the excess positive ions in the aqueous solution there. Thus, there exists a potential difference between the top and the bottom of the mountain slope, forming a hilly area electric field. That is why most of the temples are built in the top higher regions of the mountains. The gajur helps to discharge the approaching cloud; the induced charges on the ground will be accumulated towards the top of the temple and from there the gajur where point discharge takes place continuously. In this way, the destructive spark discharge of a lighting stroke is avoided (ibid). In the city areas the electric field could be produced due to the high-tension wire, telephone wires, electrical equipments, electric vehicles and current leaking from various electrical installations. These electric fields can be induced in the periphery houses and buildings, which are very dangerous. So to prevent such lighting danger, temples are often made to prevent such dangers. The old generations' houses had used the same wisdom but they were not found informed of what they did scientifically. On the other hand the new generation studied this 56 scientific know how but did not try to do so in their houses nor they understood the science of the old houses. These conceptual and operational paradoxes were observed in the studied houses. In some of the houses slate were found to be as roofing material. The houses were built of bricks and mud mortar with a 14” thick wall. These are the wall system houses in which only the unbacked bricks are used to built the walls. No iron rods are kept inside the wall unlike in the modern houses in which the walls are reinforced with iron rods inside the walls. In the wall system, because the walls are very thick, it is safer in terms of earthquake point of view. In 2045BS, an earthquake of 7richter scale stroke with its epicentre in the district of Udayapur. Its effect was felt in the Kathmandu Valley as well. So many houses including the houses built by modern methods were collapsed but the traditionally built houses did not collapse. Only certain cracks were seen in the traditionally built houses. This proves that the wall system houses have greater resistance to earthquake. The houses commonly had four storeys in it. The topmost storey is often not usable to live as there’s little room due to the slanting roof and it also has limited light. But, this storey is found commonly used as a storeroom. In some houses, it was used as a worship/prayer room. A small window was kept on the roof that allowed enough light in the room for storing goods as well as circulation of air. The fourth storey (second top floor) is found commonly used as the kitchen. It is called “bhanchha kotha” which usually combines both kitchen and dining together. The second and third storey was used as bed rooms and living rooms. Usually, there are plenty of windows in these floors that are artistically carved enhancing elegance of the entire house structure. 57 The ground floor was used for business and usually it is turned as shop. Toilets were made separately in the ground floors. The selection of bhanchha kotha at the upper storey and toilets at the ground floor had the special feature of the old houses. The modern houses built by the parents of the houses have all the rooms, kitchen and toilets in the same floor. But what the old people follow seems to be more scientific than the modern buildings. The bhanchha kotha was made in the upper storey to enhance enough light and free from germs and harmful gases. In the ground floors, there were high chances being damp and less exposure to the sun light. This can give rise to the development of germs. Furthermore harmful gases like carbondioxide, sulphurdioxide, ammonia, hydrogen sulphide, formalin etc are often produced from the damp dirt and toiletry places are heavier and mainly occupy the bottom layer (Gyawali et al 2006). The parents of the same house have also built a modern house. Some have built one story house while others have built two/ three story houses. In their houses, I have found that all the rooms and the kitchens and the toilets were built in the same floor. This very much contradicted with the old concepts and ideas. The gases that are produced in the ground floors had the following effects. Hence prolong inhalation is harmful to the health.  Formalin: Poisonous by inhalation. Causes burns and severely irritates the eyes, skin and respiratory system. It can also cause ulceration and cracking of the skin.  Ammonia: The vapour irritates all parts of the respiratory system. The solution causes severe eyes and skin burns.  Hydrogen Sulphide: High concentration may cause unconsciousness followed by respiratory paralysis. Causes irritation of all parts of the respiratory system and eyes, headaches, dizziness and weakness. Irritates eyes and may cause conjunctivitis. 58 These precautions taken by the first generation people were hence highly commendable. The chulo uses the phenomenon of convection of current of air. It is due to the convection current of air that leads the flame and heat focused towards the pan-hole. Although the parents were not fully aware, the science of convection current inherent in the chulo had come along generations to generations and still constitute an important household chore. 2. The thermodynamics of chulo The chulo made of bricks and mud are far safer and economical because mud and bricks are bad conductor of heat so the heat is not lost to from the body of the chulo rather heat is reflected and focussed towards the pan holes (Mee et al 1971). Furthermore it is safer in an explosion point of view as well. The gas stoves are often found to be exploded and sometimes due to gas leakage the whole body of the person is burnt but chulos are not dangerous in that sense. The grandsons of the houses have not realized these important scientific applications at home. They have studied and know what are conduction, convection and radiation but were not applying at their own houses. This shows that our traditional methods have much practical scientific knowledge that can be used in our textbooks to teach. The most interesting science behind this earthen chulo is convection current of air. According to the particle theory of matter, the cold air occupies the bottom layer and the hot air occupies the upper layer (Denial et al 1981). So when the fire wood is burnt at the bottom of the chulo, the hot air thus produced rise up through the two pan holes giving much heat. When the hot air pass out of the pan holes dragging the flame as well, fresh cold air which consists of more oxygen would enter through the bottom hole assisting the firewood to burn. But in the schools the teachers were found teaching the same science by the following experiment (Mee et al 1971). 59 The example shown above is most commonly used in the classrooms and also in many textbooks explaining movement of hot and cold air. A continuous supply of cold air is a precondition for the candle to keep burning. It is because in the candle compartment the hot air rises up and the cold air is replaced from the other compartment. The example given below explains what happens if there’s no supply of cold air. 60 Both examples suggesting that the continuous supply of air is essential for burning anything. The chulo are made in such a typical way that it has perfectly addressed to the principles of burning fire (Mee et al 1971). This implies that the knowledge of science existed in traditionally made chulo since long. The shape of the chulo is made in such a way that the fresh air is continuously and naturally supplied from the bottom hole and the heat thus produced with hot air is focused towards the pan holes. So the heat is not lost elsewhere and hence this sort of chulo is very economical as even lesser firewood can produce a prolong heat. In addition to this the inner part of the chulo is pasted with the mud that radiates the heat which contributes to the convection current of hot air. Convection thus is the action of the warm air rising and cool air sinking. The basic concept of convection current of air is Warm air rises, Cool air sinks. Bodies of warm air are forced to rise by approaching cold masses. According to Charles law (1887) volume of gas is directly proportional to absolute temperature. Vα T Hence the volume of air increases when the temperature increases while burning wood in the chulo. When volume is increased the density of the air is decreased as density = mass /volume When the air becomes less dense, it then rises up. The hot gas then touches the cold container. The air cools down when it comes in contact with the cold container and when the air cools down it transfers the heat energy to the container. The resulting cold air then would increase in density, thus becomes heavier and goes down. This way the convection current of air is playing great role in cooking food in our traditionally made chulo. 61 Let us take another example as well that reiterates the scientific notion of the traditional chulo makers and the users. In order to examine the science associated with chulo, I talked with the young generation about the science behind chulo. Those young people already in grade 9 knew in detail about the meaning of convection current. They could demonstrate the experiment to prove the convection of air. But they failed to realize the convection current of air also inherent in the chulo. 3. The scientific location of chulo The old house consists of chulo only in the upper story and never in the ground floor. The old people said that it is kept in the uppermost storey for purity purpose. Whoever goes into the chulo has to clean hands and legs. The shoes were absolutely forbidden. In purpose of isolating the chulo from the people also the chulo is made at the uppermost storey of the old houses. According to science, the bottom layer of the houses is concentrated with the stinging gases which are heavier in nature. Gases like Hydrogen Sulphide (H2S), Ammonia (NH3), carbondioxide, formalin which are harmful for our health are present at the bottom floor and nearby the toilets area because they are produced from the organic waste products, rubbish and dead and decaying materials (Jain 1999). Bacteria and virus also grows well in such places. People who steps on these floors would have their hands, legs and shoes plenty of virus and bacteria. That is why chulo is made in the upper floors. To go to the bhanchakotha they have to clean their hands and legs and take off their shoes. In this regard the concept of making chulo away from the toilet areas is highly commendable from the protection of bacteria (Selmon, 1957). The parents of the old houses have made the new houses where they simply worked in the kitchen wearing shoes. This seems that modern method is rather less scientific than the old methods. 62 4. Cloud formation: the contribution of chulo The old people seem to have got gifted latent scientific knowledge. They said that the clouds are produced by the smoke. In fact scientifically speaking, smoke also contributes the formation of clouds (Mee et al. 1971). (Mee et al. 1971) The grand children’s idea was not wrong as they had studied. This is quite interesting. According to the general law of science, air may become full up or saturated with water vapour by passing for example over the sea (Mee et al. 1971). If the air is forced to raise, perhaps meeting a range of hills, it becomes colder because the temperature of the air falls as the height increases (Mee et al. 1971). The air cannot then hold much water vapour. The extract water condenses as a cloud. That is why we often see the clouds on the top of the mountain. (Mee et al 1971). The convection current of air is playing many roles in nature as well, for instance, in the formation of cloud. A body of warm air is forced to rise by an approaching cold front. A strong updraft of warm air creates cumulus clouds. The air cools as it rises, condenses, and forms clouds. But what has made the old people believe that smoke forms cloud. They are also right as well. In fact water vapour may not condense although the air may be cool enough (Mee et al. 1971). The 63 air is then said to be supersaturated with water vapour. When it is like this it does not take much to make the water vapour condense. Dust particles of the smoke can cause it to do so. Following experiment can clearly illustrate this. (Mee et al 1971) The apparatus is to be set up as shown in the figure above. The large bottle has a little water at the bottom. A little smoke has to be introduced into the bottle form a glowing wooden splint. Then air is pumped into the bottle with a bicycle pump. Then the clip is opened to let the air escape. On doing this the side of the bottle would be seen with droplets of water. The thermometer shows the temperature fall. So this clearly shows how clouds are formed. In this experiment we use smoke particles which act as ‘centres’ around which the water droplets formed. This explains why fogs are more often found in smoky areas than in clean air. Vapour trails from aeroplanes are clouds formed when the plane passes through air which is supersaturated with water vapour (Mee, et al. 1971). The exhaust fumes act as the ‘centre’ in this case. Sometimes rain clouds are made artificially by putting tiny particles of solid carbon dioxide into air supersaturated with water vapour. (Mee, et al, 1971). 64 So what the old people told me about the principle of formation of cloud is scientifically valid. 5. Multipurpose of smoke The grandparents’ application of smoke is also highly scientific. The grandparents use smoke of the chulo for drying the firewood, the lumbers of the house and for keeping house warm. For rooms where there is no chulo they often burn wood or straw to generate the smoke. They strongly believe that the smoke keeps the room warmer. In fact scientifically speaking, the smoke coming out from the burning wood, straws or other organic product consists of soot and gases like carbon dioxide, methane, moisture. All these gases are the greenhouse gases (Hill & Holman 1989). These gases reflect the heat produced in the room thus making the room warmer and things quickly dry up. Furthermore, the soot in the smoke is mainly the fine carbon particles. These are very good in absorbing moisture from the air. Hence the air in the room dries up and hence those dry air pick up moisture from the wooden materials. The wood thus dries up faster. This shows that daily living practices there are full of science. People call their practice as the old methods which are “unscientific”. In fact it is not true. Their practice is very scientific. B. Health Related Practices Health awareness of the grandparents: 1. Fire wood and smoke hazards: Grandparents enjoy smoke in their daily life activities and they disregard the hazards of it. Along with questions in mind I asked the grandparents whether they are aware of the hazards that could be caused by the smoke. But they seemed to be less cautious in this regards. However I came to know that their mother who had spent most of her time in cooking food in chulo had chest pain problems that lead to her death. This means they were not aware of the hazards caused by the 65 burning wood. But they were not in position to accept the hazards of smoke. They said that their death is natural as they were very old. Something has to happen to meet death at very old age that exactly the case happened with the great grandparents. This way they are not in position to accept the hazards of the smoke. Parents and grandchildren of the same house were not willing to stay in the smoke. They believed that smoke causes hazards to health. So they were willing to use heaters and gas stoves for cooking foods. But the grandparents want their daughter-in-laws to cook food in the chulo which produces plenty of smoke. But in spite of their willingness, I found that the parents cooked food in the separate room while the chulo remained in the top floor only sometimes be used by the grandmother. According to science, the fire wood is an organic product. Products from heating wood depend on the temperature of heating: Temperature ranges are approximate, although the conversions to Fahrenheit are exact. 100-120ºC: moisture driven off. 275ºC : Nitrogen, carbon dioxide and carbon monoxide gases; acetic acid and methanol distilled off. 280-350ºC : Chemical reactions occur during burning of wood, driving off complex mixtures of ketones, aldehydes, phenols and esters; carbon dioxide, carbon monoxide, sulphur dioxide, methane, ethane and hydrogen gases evolved. Above 350ºC : All volatiles driven off; a higher proportion of hydrogen and carbon monoxide (both useful combustible gases) formed; carbon remains as charcoal with ash residues. There are numerous minor products, many of them toxic or carcinogenic e.g. polycyclic aromatic hydrocarbons. These readily adsorb on soot particles. 66 But when I told them that the great grandmother might have got the disease because of the smoke, they presented a conflicting view in this regard. They told me that their father used to do a lot of puja staying in one closed room burning a lot of dhoop (incandescent) and other related things like burning ghee (margarine) which all produces a lot of smoke. They said he did not have any problem in his chest throughout his life. This knowledge helped to think that all the smoke particles burning at low temperature produces mainly the fine coal and charcoal particles which on inhaling enters the lungs. Now in the lungs, any sort of unwanted liquids produced due to infections are absorbed by these fine particles of coal and charcoal. After sufficient absorption they are thrown out as sputum thus clearing the lungs which can then absorb oxygen easily through the mucus layer present on it (Mackean and Jones 1985). 2. The science on the fire wood used in the chulo I was so delighted to see the grandparents making use of even the products of burning wood. The soot produced, they use it for making gaajal. The ash produced they used it as fertilizer, cleansing powder and also for treatment of abdominal pain. People suffering from abdominal pain were immediately treated if little amount of ash was fed along with a cup of water. They used the ash produced for cleaning the utensils. They used the coal and charcoal for brushing teeth. I examined their teeth, and found that it is shiny and healthy. Scientifically speaking the chulo users usually suffered from respiratory allergies, such as asthma and hay fever, and people carrying out strenuous exercise are more susceptible to the effects of sulphur dioxide and smoke than other people (www. home. health source.com). This is partly because they usually need to breathe through their mouths instead of their nostrils, and so there is more chance of the acid droplets and smoke going straight down the trachea without any filtering in the nostrils ( Alloway & Ayres 1993). 67 But the wisdom of the chulo users shows that people who brush with coals and charcoals have healthy teeth. Not only are that people often fed with activated charcoal for stomach pain poisoning as well. Activated charcoal is pure carbon which is highly adsorbent of particles and gases in the body's digestive system (www. home. health source com). Activated charcoal has often been used since ancient times to cure a variety of ailments including poisoning. Its healing effects have been well documented since as early as 1550 B.C. by the Egyptians (www. home. health source com). The ash consists of oxides and hydroxides of sodium and potassium which helps to clean the utensils. They consist of plenty of potassium which is essential for the ripening of fruits in plants. So it is used as fertilizers. This shows that what the grandparents are practicing have scientific reason behind it. The parents were not in reluctantly using the ash for various purposes. They used the market powder for cleansing, chemical fertilizers for the growth of crops. 3. Use of abir (vermillion) The first generation excessively used vermillion for worshiping, blessings and for every good deed. They say their demands were fulfilled through such puja. In puja they frequently used the sapta rangin abir. They put tika made of abir on their foreheads. According to one of the old man who practiced yoga- he is a Buddhist, the tika placed on the forehead would help to concentrate our mind which would greatly help to do meditation. Other old people regard it as a blessing of good fortune. Many people put abir in the cut wounds. Scientifically speaking all these colourful vermilions are lead containing compounds. All sorts of lead containing compounds are health hazardous (Hawkings 1988). 68 Lead can cause learning, language and behavioural problems such as reduced school performance and increased aggression. Pregnant women and young children are particularly vulnerable to lead exposure (http://www.englishforums.com/English/PlasticBottlesHealthHazard/bdwzb/post.htm). Lead has also been linked to infertility and miscarriage.But why our culture gives so much importance to abir? There should be a solid reason behind it which needs to be further studied. 4. Suraii for health and local economy The first generation drink water stored in the suraii whereas their grandchildren used to drink water in the water bottles. The volumetric flask shaped suraii made of earthen material. The water kept on it is cool and tasty. The plastic water bottles which are popular among the modern children is transparent very easy to carry. But recent studies have shown that these plastic bottles are very hazardous to health which can cause cancer (http://www.englishforums.com/English/PlasticBottlesHealthHazard/bdwzb/post.htm). The following text is worth citing here. “Many are unaware of poisoning caused by re-using plastic bottles. Some of you may be in the habit of using and re-using your disposable mineral water bottles (e.g. Nestle, Bisleri, Aquafina, Kinley, Evian,etc...), keeping them in your car or at work. Not a good idea. It happened in Dubai, when a 12 year old girl died after a long usage (16 months) of SAFA mineral water bottle, as she used to carry the same fancy (painted by herself) bottle to her school daily. In a nutshell, the plastic (called polyethylene terephthalate or PET) used in these bottles contains a potentially carcinogenic element (something called diethylhydroxylamine or 69 DEHA). The bottles are safe for one-time use only; if you must keep them longer, it should be or no more than a few days, a week max, and keep them away from heat as well. Repeated washing and rinsing can cause the plastic to break down and the carcinogens (cancer-causing chemical agents) can leak into the water that you are drinking.”(http://www.englishforums.com/English/PlasticBottlesHealthHazard/bdwzb/po st.htm) The same studies found that repeated re-use of such bottles—which get dinged up through normal wear and tear and while being washed—increases the chance that chemicals will leak out of the tiny cracks and crevices that develop over time. According to the Environment California Research & Policy Centre, which reviewed 130 studies on the topic, Bisphenol (BPA) has been linked to breast and uterine cancer, an increased risk of miscarriage, and decreased testosterone levels. BPA can also wreak havoc on children’s developing systems. So Parents needs to be aware: Most baby bottles and Sippy cups are made with plastics containing BPA. Most experts agree that the amount of BPA that could leach into food and drinks through normal handling is probably very small, but there are concerns about the cumulative effect of small doses. (http://environment.about.com/od/healthenvironment/a/plastic_bottles.htm) 5. Pond water /river water: healthy practice. The first generation in the past used to go to the rivers and ponds everyday in the morning to take bath and bring fresh water. They regarded that outside water as fresh water. At least water kept open outside the houses are regarded as the fresh water for them. Those old people were not in position to admit the water safely kept in the house as the fresh water. ‘So even the water kept in the filter is not the fresh water and not suitable for drinking’ according to the old people. This 70 sounds funny. But their practices have highly scientific reasoning. The water in the ponds and rivers exists in larger quantity hence virus if present have lower concentration. The temperature in the rivers and ponds would be rather lower than in the houses. At low temperature, the germ activity and multiplication is minimised – germs are active at optimum temperature 27O C. And early sun’s rays can easily kill the germs in the water in the rivers and ponds. So such water regarded as the fresh water by the old people is highly scientific. The water kept in houses would be rather at room temperature at which the germs can easily develop. Furthermore inside the house, there would be dirt from which the harmful gases like ammonia, hydrogen sulphide might release. These gases are highly soluble in water so they easily mix up with the water kept in the buckets in the houses making the water harmful. Harmful bacteria released by the living beings in the house enter into the air which in turn enters into the water in the houses where they develop. This shows that our people are really amazing to adopt such practice which is highly scientific in nature. All these practices of the old people clearly show that the old techniques are also very scientific. But this is not being recognised by the new generations and gradually being extinct. This is a moment to realize this and soon needs to take necessary steps to preserve these old methods and styles. These methods and styles help us to understand easily the basic concept of science and these are really the sustainable methods. This study gave me intuition that there is a need of rethinking over science teaching. This rethinking demands (a) intergenerational understanding over science (b) exploration of the scientific know-how embedded in each generation (c) developing the formula/principle out of the intergenerational scientific knowledge. I also realized that science teacher like myself should go beyond the textbooks and encourage students to collect lived science and help them learn theory, 71 philosophy, formula in their collections. For example, if a student see the mixture of turmeric and salt, s/he should find out its chemical reaction, formula associated with it, and also mention how his/her grandparents and parents understand about it. I also understood that using chulo we could explain the conduction, convection and radiation and help students learn the concept clearly than the laboratory methods that we apply today. I also realized that there are innumerable traditional methods, which we can be used to help students understand different theories of science. Hence it is wise to collect all these knowledge from the old people and apply them for science teaching. I also realized that this ethno-scientific approach to teaching science would be helpful to understand the importance of social action theory of Max Weber (http://ssr1.uchicago.edu/PRELIMS/Theory/weber.html). This theory teaches us that people do act; and their acts shape their understanding. As a science teacher like me, we are supposed to unveil the science associated with peoples' act. I also felt that this selfunveiling scientific process makes the students critical as Karl Marx claimed (www.isj.org.uk/index.php4?id=141). At the same time I came to know that science is not merely a fact but it is also an interpretation as the interpretationists championed (Mee et al 1971). 72 Chapter VI Conclusion and Implications I greatly felt that there are many sciences to learn from the traditional methods and utilize it in various fronts. In Nepal, the importance of science education has been greatly realized. But my experience is that the students are finding too much difficulty in science study especially in the village regions. It is mainly because there are many things that has to be observed practically and for that many expensive materials has to be imported from the foreign countries which are costly and local schools cannot afford for it. So students in such schools are taught science only theoretically. Such problem would be eliminated if the teachers could utilize the ethno science knowledge. Students would easily understand and enjoy studying science if science is related to their traditional and cultural knowledge. This study thus has tried to correlate the traditional knowledge with the scientific knowledge and hence bridge the gaping between the modern science and the ethno-science. I do not feel that we should totally incorporate the traditional knowledge and discard the modern scientific knowledge. My only concern is that traditional knowledge is also scientific in many ways. Moreover there are many avenues to construct science-like knowledge. These scientific knowledge and knowledge construction avenues should therefore be studied thoroughly and apply in the research in modern science. The research of modern science is not based upon the new things. It is based upon whatever present in this earth and universe. Hence it would be far better if we are able to incorporate our traditional knowledge in the research of modern science at the same time it would be very easy to learn modern science through the explanation and examples of traditional knowledge. I am also aware that we should not be very dogmatic about 73 the traditional knowledge but we should understand it, examine it from scientific process, preserve it, and use it for the betterment of the human being. Usually we credit the West for the scientific innovation. This west- innovated science has been defined as a systematic approach, a methodological approach to answering questions. http://www.icsu.org/Library/ProcRep/%20TK-report/FinalTKreport.pdf). But our traditional knowledge is yet to be lab tested though it has been passed down from generation to generation. Such science-like traditional knowledge has not been documented as books. The new generations are adopting the West generated knowledge through the school. Hence the traditional knowledge has a very high chance to get disappeared very soon along with the new generations to come. Alchemy: the basis for re-reading ethno science The traditional knowledge has its own speciality. If we look at the various wonders of the world, we would see easily how ethno-science has worked for the betterment of the civilization and society. There are many cases where the indigenous knowledge has proved to be highly advanced. The medieval chemistry is an ancient traditional chemistry. It was developed with aim to produce the philosopher’s stone which can turn the base metal into gold or silver and act as an elixir. For this, Alchemy have made many procedures, equipment, terminology that are still in use and all these are based on mythological, religious, and spiritual concepts, theories and practices. Another example Pisa tower 74 of advanced indigenous knowledge is the example of the Leaning Tower of Pisa (http://www.towerofpisa.info/Tower-of-Pisa-facts.html) It is located in City of Pisa, Italy. The building of the leaning Tower of Pisa, one of the Seven Wonders of the World. This shows that there is a relation between ethno-science with the modern science. But their premises are different. The table below displays the differences in the following ways. Premises of western and indigenous science Western premise Indigenous premise Materialistic Spiritual Reductionist Holistic Rational Intuitive Decontextualised Contextualised Individual Communal Competitive Cooperative Explains mystery Celebrates mystery Time is linear Time is circular Seeks power over nature and people Seeks to coexist with nature and people Knowledge production for the progress Knowledge production for specific cultural outcomes of the society to maintain society (http://members.ozemail.com.au/~mmichie/engag_tk.htm) 75 The West also tried to explore the ethnic knowledge. It also assessed the worldviews associated around ethnic knowledge. The explored knowledge and the worldviews embedded with it are given below in the table: Indigenous peoples’ worldview on ethno science Indigoes people's approach to construct Example of the constructed knowledge Approach scientific knowledge For example, the notion of the seasons Holistic Indigenous people examine elements of only makes sense when considered with versus a their surroundings in terms of how they the movement of the animals, growth of reductionist relate to each other. plants, movement of water. There is a relation between each element. An approach Indigenous view moves beyond simple examining the wind, clouds and temperature. Ecologically People are part of the environment. The gathering of food or hunting of based Their actions directly impact on the animals is based on present needs of its approach flora and fauna. People are in and not people, within the context of ensuring external to their environment. There is scarce resources will be available in the a connectedness with nature and each future. For example, a waterhole is other rather than the view that nature imported and must be cared for and not can be controlled. depleted. 76 Inclusive Everybody understands and uses An understanding of where to find water versus technology (but with certain members is traditionally held by all members of specialisatio of the community claiming knowledge traditionally orientated communities. n of of it) as opposed to specialist Similarly, the hunting for kangaroos knowledge knowledge held by a limited few. (tracking, signing to indicate direction) is known to all, although aspects of this task may be performed by only some. For example, an understanding of day Knowledge Art, dance, music and dreamtime and night may be closely linked with the is spiritually stories link knowledge with the land dreamtime. Stories link people and framed and its people. nature together, and provide a vehicle for passing on cultural knowledge from adults to children. Contextualis Knowledge is developed and used in For example, knowledge of fire lighting ed versus context. Scientific enquiry takes place is developed as a result of materials decontextual in the everyday situation and not in an available, e.g. rubbing sticks over dried ised science environment external to the context in grass; using pandanus leaves to make which it will be applied (laboratory). string. Fleer, Marilyn (1999). Children’s alternative views: Alternative to what? International Journal of Science Education, 21(2), 119-135. http://members.ozemail.com.au/~mmichie/engag_tk.htm). 77 There are occasions that science and ethno sciences are going in an opposite way. For instance when wood is burnt to give a carbon particle, from the carbon particles the science begins. What is the content of the carbon particles is the special interest of science. Each and every particle contains electron, proton and neutron. This is what science has found whereas in ethno science, it is just going in opposite way. From carbon particles it looks for the source of the particles. The sources are supposed to be wood. Where the woods come from? It comes from the trees. Likewise trees from the forests and forest from this immense big earth and the earth are one of the planets in the space. Lastly it concludes with the creation of everything by god. So this way from tiny particle ethno science is moving to gigantic particle whereas from gigantic particle modern science is moving towards the tiny particle and further into electron, proton and neutron. Both of them have their own logic and hence both of them are science. But Science is based upon philosophy and philosophy is adhered in ethno science. Science has become very important in the today’s world, but the transfer of knowledge about science has been increasingly dominated by school generations who receive the knowledge through teaching and learning in the classrooms. This practice has in the one hand created a conflict between old and new generations with their varied perception and values toward science. While on the other, the rich source and traditional practices that used to transfer knowledge about science through generations is fading away. Study of science is one of the difficult subjects in the school curricula as many students tend to fail in this subject. It is also expensive because this requires use of different tools, equipments and chemicals to explain the science. Contrary to school based learning, the science inherent in our daily practices, household chores, and in our culture makes it easy to explain and to 78 understand it. Moreover, bringing these concepts and practices into the classroom also helps sustain our culture. There are three research questions in the study. The first research question, ‘what is the science behind the traditional?’ constitute major area of inquiry in this research. The deliberations made earlier under the findings and discussion section presents plenty of practices in our traditional methods that are scientific. The traditional knowledge is not just simply the knowledge of the old people, but it has throughout the ages in human history helped our ancestors survive through all the odds. The only problem associated with the traditional knowledge of science is that the people could not give a valid reasoning to explain the science. Once assessed the science behind traditional practices, it is easy to explain as well as to understand the real science in it. The current generation is more acquainted with the modern science and technology, which has created a huge gap in terms of their perception and understanding of science. The perception of science among old generation is very much guided by their utilitarian thinking whereas, that of the new generation is guided by aesthetic thinking. This explains my second research question ‘How the inter-generational values differ in using the traditional scientific knowledge?’ As far as the science is concerned, it is apparent in both the traditional as well in the modern practices. Traditional science inherent in human practices requires its assessment and documentation, whereas the modern science is readily available in books in the form of theories or formulae. My third research question was – How the modern scientific knowledge can be taught with the help of traditionally nurtured knowledge? The youth whom I talked did not want to use traditional method, which is mainly because these methods have not properly transferred to new generations. School curricula and textbooks seldom include traditional methods as learning 79 requirement. For this intergenerational value difference should be enhanced through teaching values of traditional methods in subsistence. Thus, my conclusion is that there is science behind old practices. We need to explore and prove it. These old techniques are safe and have no long-term side effects as well. There are a lot of problems of the side effects in scientific products. For instance, the technology used for production of crops and vegetables by using chemical fertilizers have now proved to be very hazardous to health. Those people who have realized have already started to use the traditional methods and traditional medicines and traditional methods of food preparation. This shows that traditional methods are more safe and reliable methods. There are no hazardous side effects in our traditional methods. While modern science has tremendous value in our current state of being, traditional knowledge also carries huge potential for its exploration, use and preservation. In short I would like to summarise the thesis in two points: 1. The general belief that ‘the traditional methods have no scientific base’ is absolutely incorrect. It has a strong scientific base and in many instances traditional methods works as the foundation for many modern methods. 2. Traditional methods are easy to learn, easy to teach, less costly, environmental friendly and highly sustainable. Science is of course essential in modern days but science should also be studied through traditional methods. Implications Due to the rapid growth in science and technology, life style among the new generations has changed dramatically. Consequently and most noticeably, the traditional knowledge which is the 80 source of modern knowledge and technology in many cases; and which also exhibits value orientation among different human cultures living in different parts of the globe at different periods, is at the verge of disappearance. We cannot blame to innovations and developments in science and technology, but we can certainly find ways to retain and utilize traditional knowledge that we inherit. We have yet to fully understand these traditional practices which have helped human civilizations to thrive and prosper. There may be answers to many human concerns hidden into these traditional practices. Therefore, to retain traditional knowledge and the science hidden behind these practices should be included in the school co-curriculum. These are simple to explain and easy to understand. Ethno-science is one of the less explored areas in Nepal, if not globally. Through this study I have made humble attempt to bring forth the values of our traditional practices in our culture and that over the generations how these traditions is gradually transforming in the name of modernity leaving the traditional knowledge in vain. Therefore, this is the area to conduct extensive research and development works. 81 References Alloway, B.C., & Ayres. D.C. (1993). Chemical principles of atmospheric pollution". London: Chapman and Hall. Blough, G. O.(1954). Making and Using Classroom Science Materials in the elementary school. New York: Holt, Rinehart and Winston, Inc. Cohen, L., Lawrence, M. & Morrison, K. (2000). Research methods in education (5th edition). London: Routledge Falmer Denial, M. J., Davies, L., Locke, A. W. Locke & Reay, M. E.(1981) Investigating Chemistry London: Heinemann Educational Books Ltd Douglas, M. (1996).The world of goods: toward and anthropology of consumption. London: Routledge. Giddens, A. (2001). Sociology (4th ed.). Cambridge: Cambridge: Polity Press Gyawali, M. B., Wagle, P., Tiwari, R., Acharya S., Ghimire, C. (2006) Principles of Chemistry. Nepal: Budha Academic Publishers and Distributors Pvt. Ltd. Haggis, S. M. & Hall, J. B.(1966). Finding out in science. London: Cambridge University Press. Hampson, B. L., Evans, K.C. (1981). Science from the beginning. Edinburgh: Oliver and Boyd. Hanfu, X. (1985). Popular Science Booklet Series Electricity (Y. Zhendan, Trans.). Beijing: China Science and Technology Press. Hawkings, M. D.(1988) Safety & Laboratory Practice. Southampton: The Camelot Press Ltd. 82 Jain, S. K. (1999) Conceptual Chemistry. New Delhi: S.Chand & Company Ltd. Kottak, C. P. (2005). Window on humanity: A concise introduction to general anthropology. New York: Graw Hill. Martin, G. J. (2004). Ethnobotany. USA: Earthscan Miller, D. (1987). Material culture and mass consumption. London: Blackwell. Mee, A. J., Boyd, P. & Ritchie, D. (1971). Science for the 70’s. London: Heinemann Educational Books Ltd Mee, A. J., Boyd, P. & Ritchie, D.(1981). Science for the 2000 Book one. London: Heinemann Educational Books Ltd Mee, A. J., Boyd, P. & Ritchie, D.(1981). Science for the 2000 Book two. London: Heinemann Educational Books Ltd Muir, G. D.(1972). Hazard in the Chemical Laboratory. London: The Royal institute of Chemistry. Mackean, D. & Jones, B.(1985) Introduction to Human and Social Biology. London: John Murray (publishers) Ltd. Oliver, Richard L. (1997), Satisfaction: A Behavioral Perspective on the Consumer, New York: Irwin/McGraw-Hill. Pandey, Deep N. (1997) Ethnoforestry by Indigenous People. Paper presented in XI World Forestry Congress, Antalya, Turkey Pandey, Deep N. (1996) Plantation Forestry: India must Change to Advance Closure Technique. 83 Paper presented at the JFM National Network Meeting, October 1996, New Delhi. Selmon, A.C. (1957). Health and Longetivity. India: The Oriental Watchman Publishing House. Sthapit, M. K. & Pradhananga, R. R. (1996). Foundations of Chemistry. Kathmandu: Taleju Prakashan. Tuli, G. D., Bahl, B.S. & Prasad, A. (1983) Intermidiate Inorganic Chemistry. New Delhi: S. Chand & Company Ltd. Wolf, H. K. & Pant, P. R. (2005). Social Science Research and Thesis Writing. Kathmandu: Buddha Academic Publishers and Distributors Pvt. Ltd. Websites: www./Charcoal,%20activated.htm (retrieved on 10/2/2008) www./Taking%20Care%20of%20Your%20Teeth.htm (retrieved on 10/2/2008) www. /Charcoal%20History.htm (retrieved on 10/2/2008) http://www.englishforums.com/English/PlasticBottlesHealthHazard/bdwzb/post.htm (retrieved on 04/09/2008) www./home-Health Resource - The Healing Properties of Activated Charcoal.htm (retrieved on 04/08/2008) www./Articles - Activated Charcoal Universal Antidote and Detoxifier.htm (retrieved on 04/08/2008) http://www.inef.org (retrieved on 04/08/2008) www.ethnomath.org (retrieved on 04/08/2008) 84 Max Weber Basic Terms (The Fundamental Concepts of Sociology). Definitions of Sociology and Social action: ssr1.uchicago.edu/PRELIMS/Theory/weber.html (retrieved on 4th April 2011) Habib, I. (2005). International socialism. Critical notes on Edward Said. www.isj.org.uk/index.php4?id=141 (retrieved on 4th April 2011) http://www.icsu.org/Library/ProcRep/%20TK-report/FinalTKreport.pdf (retrieved on 4th April 2011) http://www.towerofpisa.info/Tower-of-Pisa-facts.html (retrieved on 24th July 2011) http://members.ozemail.com.au/~mmichie/engag_tk.htm (retrieved on 24th July 2011) http://www.experiment-resources.com/history-of-the-philosophy-of-science.html (retrieved on 24th July 2011) 85 Appendix –I Scientific reasons in some other interesting traditional methods. When the body skin burns due to the accidental fire break, the old people spat the paste of cow dung around the affected area. They said it prevents the formation of blisters. But our medical doctors do not recommend this as this ‘is very unhygienic’ said by a physician Dr Arun Karna. But the old people have strong belief that it can cure. So how far the truth is there needs to be scientifically in this regards. Eating paan increases the strength of the teeth also has a scientific reasoning. The paan consists of ‘chun’ which is a calcium oxide powder. The powder thus provides calcium which is very essential to strengthen the teeth. Similarly the old people prefer to have pickles grinded in the thick stone slate rather than grinding in the electric grinder. It is because the stone slate provides fine particles of stone which is the compound of calcium. Calcium is the main constituent of the stone and the calcium makes pickles tasty. Pickles without calcium have blunt taste. Similar is the case with water. River water is also tasty as it flows along the stone rocks. Underground water have blunt taste as it is not coming in contact with the rock stones and hence consists of very little or no calcium. That is why the old people prefer to have pickles made in the stone slate. The calcium makes our teeth and bones stronger and hence essential substance for our healthy growth. ‘Sleeping in hard mattresses like the straw mat would keep our body in correct posture’ said Dr Dhakwa, a child physician. Our body needs to be in correct posture to maintain our health. According to Dr Dhakwa, the incorrect posture would lead to constriction of nerves that lead to several types of diseases specially nerve diseases. 86 Dr Karna points out that as far as possible, patients should be given only the traditional methods of treatment unless it is really very essential. It is because the pharmaceutical medicines always have some or other sort of side effects. He recommends sourly foods like teete karela and pickles with methi which gives sour taste is the best method to control the blood pressure. There are some amazing methods which are very powerful methods to cure some of the diseases like curing janai khatira, jabi khatira etc. Research needs to be done in these amazing traditional methods the findings of which would be a great beneficial to the human kind. Alcohol is one of the very popular beverages found to be produced at home in the newars families of Bhaktapur. Its scientific name is ethanol / ethyl alcohol. Ethanol is the alcohol of beer, wines, and liquors. It can be prepared by the fermentation of sugar (e.g., from molasses), which requires an enzyme catalyst that is present in yeast; or it can be prepared by the fermentation of starch (e.g., from corn, rice, rye, or potatoes), which requires, in addition to the yeast enzyme, an enzyme present in an extract of malt. The concentration of ethanol obtained by fermentation is limited to about 10% (20 proof) since at higher concentrations ethanol inhibits the catalytic effect of the yeast enzyme. (The proof concentration of an alcoholic beverage is numerically double the percentage concentration.) For non beverage uses ethanol is more commonly prepared by passing ethylene gas at high pressure into concentrated sulphuric or phosphoric acid to form the corresponding ester; the acid-ester mixture is diluted with water and heated, forming ethanol by hydrolysis, and the alcohol is then removed from the mixture by distillation, usually with steam. Fermentation and Industrial and Beverage Production: All beverage alcohol and much of that used in industry is formed through fermentation of a variety of products including grain such as corn, potato mashes, fruit juices, and beet and cane 87 sugar molasses. Fermentation is an enzymatically anaerobic controlled transformation of an organic compound. With respect to alcohol, we are referring to the conversion of sugars to ethanol by microscopic yeasts in the absence of oxygen. The equation for the fermentation of glucose is: C6H1206 2CH3CH2OH + 2CO2 The figure uses a symbolic notation familiar in biochemistry. It shows the stepwise transformation of glucose to ethanol through intermediates, pyruvate and acetaldehyde. Ethanol is a monohydric primary alcohol. It melts at -117.3°C and boils at 78.5°C. It is miscible (i.e., mixes without separation) with water in all proportions and is separated from water only with difficulty; ethanol that is completely free of water is called absolute ethanol. Ethanol forms a constant-boiling mixture, or azeotrope, with water that contains 95% ethanol and 5% water and that boils at 78.15°C; since the boiling point of this binary azeotrope is below that of pure ethanol, absolute ethanol cannot be obtained by simple distillation. However, if benzene is added to 95% ethanol, a ternary azeotrope of benzene, ethanol, and water, with boiling point 64.9°C, can form; since the proportion of water to ethanol in this azeotrope is greater than that in 95% ethanol, the water can be removed from 95% ethanol by adding benzene and distilling off this azeotrope. Because small amounts of benzene may remain, absolute ethanol prepared by this process is poisonous. The alcohol whether it is of good quality or not is tested by burning it in a finger. It is because ethanol burns in air with a blue flame, forming carbon dioxide and water. It reacts with active metals to form the metal ethoxide and hydrogen, e.g., with sodium it forms sodium ethoxide. It reacts with certain acids to form esters, e.g., with acetic acid it forms ethyl acetate. It can be oxidized to form acetic acid and acetaldehyde. It can be dehydrated to form diethyl ether or, at higher temperatures, ethylene. 88 Alcohol /Ethanol is not only used for drinking purposes. It is used extensively as a solvent in the manufacture of varnishes and perfumes; as a preservative for biological specimens; in the preparation of essences and flavorings; in many medicines and drugs; as a disinfectant and in tinctures (e.g., tincture of iodine); and as a fuel and gasoline additive any U.S. automobiles manufactured since 1998 have been equipped to enable them to run on either gasoline or E85, a mixture of 85% ethanol and 15% gasoline. E85, however, is not yet widely available. Denatured, or industrial, alcohol is ethanol to which poisonous or nauseating substances have been added to prevent its use as a beverage; a beverage tax is not charged on such alcohol, so its cost is quite low. Medically, ethanol is a soporific, i.e., sleep-producing; although it is less toxic than the other alcohols, death usually occurs if the concentration of ethanol in the bloodstream exceeds about 5%. Behavioral changes, impairment of vision, or unconsciousness occur at lower concentrations. Structure of old house of the indigenous people: Almost all the old houses are built in such a way that it consists of topmost floor with a slanting tiled roofs. In some of the houses slate roofs are often seen. The houses are built of bricks and mud with a 14” thick wall. The houses are built on ‘wall system’ basis which is very safe in earthquake point of view said the civil engineer Gyanendra Raj Pandey who is running Nepal Aadarsha Nirman Company ( A- class company). The topmost floor is not usable to live. It is used as a store room in some houses while in others it is used as a worshiping god. A small window is kept on the roof to allow light to enter inside the room. Apart from the small peephole like window there is no other window. The second topmost floor is used as kitchen. It is called bhanchha kotha. In the bhanchha kotha is used for both kitchen and dining room. 89 The third and fourth topmost floor is used as bed rooms and living rooms. There are plenty of windows in these rooms made up in old style with carved windows. The bottom floor is a ground floor. The bottom floor is used for making shops. Toilets are made in the bottom floor. The floors are smeared with paste of red soil and cow dung. The old people of these houses in many cases are stuck to their old methods and styles. Those old people I have found brushing with coal and charcoal whereas their sons and grandsons/ daughters are habituated to brushing with toothpaste. But the most interesting part is that those old people who brush with those coal and charcoals have very shiny and healthy teeth. I asked Mr Sunil Saiju ‘ where do you get coals and charcoals from?’ He said ‘Well I smoke tobacco so I have plenty of coals and charcoal.’ The charcoal is the burnt out tobacco. Anything burnt out in limited or absence of oxygen forms charcoal. People who are suffering from the abdomen pain are also treated very easily by charcoal. Such people are given hot water in which seven pieces of ‘ko appa’ the charred brick, the charcoal is added. Sometimes the ash of the incessant is also used for relieving the pain in the stomach as seen practiced by the phukne baje in Pokhra and Bhaktapur and in Budhanilkantha, Kathmandu. The grand parent in one of the house in Pokhara said that to teeth should be brushed with sajjiman with the branch of the same. While talking about the old methods with the grandfather Mr Prem Lal he said eating ‘paan’ has a medicinal values. For instance a woman who has under gone delivery is given ‘paan’ two / three times a day. It would make the teeth very strong. 90 Another interesting part of these old peoples’ houses is the method of production of Alcohols. They are making excellent alcohols. In many places in Bhaktapur people make alcohol at their own houses whereas the new generations are habituated to drinking foreign alcohols. The alcohols are excellent in taste and I wonder how old people able to make such beverages when they know nothing about science. I observed the procedure and talked informally with them. I found that they first of all use kodo, gahu, rice etc containing maad matter are grinded into small particles. Then water is added to make a paste. Then it is cooked only with a steam. A big copper container named as fosi is taken and water is added into the fosi. On the top of the fosi is kept a earthen container with a hole at the centre named as potasi is kept. The hole of the potasi is closed with straw and on the top of the straw the paste is put. The mouth of the potasi is closed and the water in the fosi is heated. After one and half hour the paste is cooked with a steam. The paste is then put in a clean place and is spread. When it is cooled, yeast (marcha) is put. The powdered yeast is uniformly mixed. Then this mixture is put into a big container (gyampa) and some water is added. It is kept idle for 10/12 days and according to the need it is stirred time to time and yeast is added. The paste inside the container starts to boil and sometimes the froth even comes out of the container. After the process of overflowing starts to diminish, then distillation is preceded. For this the liquid of the gyampa is transferred into the fosi. On the fosi is adjusted the potasi. The junction between the fosi and potasi is made air tight. For making air tight they enclose the junction with a wetted cloth. Inside the potasi they put a small container which they call it as patra (receiver). On the mouth of the potasi, a funnel shaped copper container is adjusted. The copper funnel and the potasi junction is also made air tight. 91 Consequently the liquid starts to vaporize. The vapours are cooled in the copper funnel. The condensed liquid droplets then fall down into the receiver. To condense the steam time to time the copper funnel is exchanged with cold water. When the patra is full, it is taken out and replaced with another. This distilled water is alcohol. The first part consists of more very high concentration of alcohol while the latter part consists of low amount of alcohol. In one of the old house in Pokhara, I met a grandfather and grandmother. Their daughters in law were washing their clothes in washing trough made of plastic. I asked with the grandfather and grandmother whether in their time too washing method is also same or different. They replied that it is different. There was no soap in their time. But they used a specially made liquid to use as soap. That was very interesting. They said it was far better than the soap. They said it is made by burning a bundle straw. The ash thus formed is then put into a small perforated bucket made up of bamboo. Then water is poured into the bucket and through the perforated bucket at the bottom comes out a very slippery gray liquid. That liquid is used for washing purpose and it can totally clean the dirty clothes. I inquired whether same solution can be used for taking bath or not. They replied that that solution is not suitable for taking bath. For bathing purpose, they have different soaps. They are still using it. They showed me rittha. It grows up in the tree. It is easily available and is cheaper. The liquid present inside the rittha produces too much froth and is slippery in water which is used for taking bath. ‘It makes the hair black and healthy’ said the old parents. It also removes many of the skin diseases. It is far better than the shampoos. The old people had no access to the medical treatment in old times. The old people have their own old methods to cure for pains in their back, hands and legs. For this they use anani chamal. 92 The anani chamal is soaked in water. The soaked chamal is then roasted in margarine. After that the roasted chamal is then cooked like a plau. People with back pain, hand and leg pain eat that plau to get relief from the pain. People who suffer from the janai khatira are also very effectively treated with old methods. An artist with his own rituals writes lion around the boils with its mouth widely open on the boils. Grandmother of one of old house told me that she suffered from the janai khatira just two years back. ‘It was very painful’ she said. She had undergone medication but it did not heal, rather it increased and became more and more painful. Many of her relatives asked her to go to an artist and write lions on the affected area at the back side of her body. Then she went to an artist near by her house. The artist wrote following his own rituals. After two days the Janai Khatira was gone. Similar incidents had occurred in Krishna patti Saijj’s house. His grandson had also got the Janai Khatira which was healed only after writing lions on the affected area. One of the old lady in Pokhra showed me a special kind of net which is used to cure jabi khatira. A jabi khatira is a kind of boils that rapidly spread all-round the body, is extremely itching and produces red spots. The old lady named Kundali told me that the jabi jali (net) is smeared around the affected area and then it is pressed under the jatto. After four days all the boils disappears. Grandmother Kundali said that in her time many people suffer from that kind of diseases and she used to send her jabi net to them. She said the net has been kept in her time from the time immemorial. She had shown me the net. This is the most challenging method to science that I have found. When I consulted with number of doctors they say that it is a kind of viral infection which can be cured but they have no answer to the traditional method of curing such disease. In all the old houses the grandparents and grandsons methods are falling apart. The grandson wants to drink cold water and cold drinks specially cokes. Coca -cola is kept in the house 93 refrigerator along with water. So when they want cold water or cold drinks they can have it at any time. But the old people did not have such facilities at their times. To drink cold water they put water in earthen container which keeps water cool. One of the grandparents told me that in past days the religious people dig a hole in the ground around the chautara and earthen containers are kept inside with water in it to provide water to the pedestrians. The old people say drinking cold drinks and eating chauchau is not good. They say only naturally food must be eaten. Junk food would spoil the health. The old people prefer to have pickles grinded in the special stone called shilaute. The old people does not like to have pickles made by grinding in the electric grinders. The old people prefer to sleep on the straw matt. In the old houses I found the old people sleeping on the matte and they are very healthy whereas their sons are sleeping in cozy mattress which is thick. The old people say such mattress would damage the health. For people who suffer from high blood pressures are given the blood pressure medicine. But these old people are not suffering from the high pressure diseases. They are controlling it by themselves by drinking neem water. Drinking neem water and eating sour foods like teete karela would reduce the blood pressure’ said one of the old man who practices phuk phak. 94 Appendix -II Form 1: Interview guidelines for children (boys/ girls) 1. Personal information: Name…………………………….Gender………..ethnicity………….age………. 2. Application of science at home 3. ethnoscience at home 4. the realization of science in their life at home 5. photo on their consent 6. What day-to-day practice at your home helps you to understand concepts of science such as conduction, convection and radiation? 7. What experiments you have observed in the school helped you to understand your day-today activities at home. 8. Can you give some scientific evidence behind some day-to-day practice on the basis of science you learnt at school? 95 Form 2: Interview guidelines for grandparents 1. How much are you satisfied with your traditional methods at the present context? 2. How important do you think is your traditional methods at the present context? 3. Do you prefer it to be continued or simply be replaced by the modern methods? 4. Do you believe in science or traditional methods? 5. Is traditional method a science or not? 96 Form 3: Interview guidelines for parents 1. Personal information: Name…………………………….Gender………..ethnicity………….age………. 2. How do you like traditional methods? 3. Do you see the importance of the traditional methods? 4. Do you wish to adopt it? 5. Do you believe in science or traditional methods? 6. Are traditional methods a science or not? 97 Form 4: Guidelines for Focus Group Discussion 1. Personal information: Name…………………………….Gender………..ethnicity………….age………. 2. How do you like traditional methods? 3. Do you wish traditional methods to be abolished and replaced by the modern methods? 98 Form 5: Check list for observation Activities Household activities Traditional equipments Occupations Photos Related concepts in science Remarks 99 Form 6: Checklist for participant observation 1. Grandparents Name................................................ Gender.......................... Age............................... Qualification......................... 2. Parents.............................. Name............................... Gender.................................... Age.................................... Qualification.................................. 3. Children Name......................... Gender..................... Age..................... Qualification.......................