47th International Physics Olympiad Switzerland Liechtenstein Zurich, 11 – 17 July 2016 magazine 47th International Physics Olympiad Switzerland Liechtenstein Zurich, 11 – 17 July 2016 The IPhO 2016 logo illustrates an active galactic nuclei – the most energetic ob­ jects known in our universe. These powerful sources of energy consist of a super massive black hole and an accretion disc. The accreting gas heats up and emits energy in the form of light. This process can outshine an entire galaxy consisting of several billions of stars. The formation and evolution of the super massive black holes remains a mystery to date. It is very unclear how the surrounding galaxy acts on the central black hole and vice versa. Welcome The International Physics Olympiad at the University of Zurich To all participants and guests of the International Physics Olympiad It is my great pleasure to welcome you to the 2016 International Physics Olym­ piad, which will take place this year from 11 to 17 July at the University of Zurich. As a higher education institution with a long tradition of fostering the development of bright young minds, we are honoured to partner and host the event – the first International Physics Olympiad to be held in Switzerland. Together with the staff and students at the Department of Physics, we look forward to welcoming you: 400 talented and motivated young physics enthusiasts from 90 different nations. International Science Olympiads have garnered international renown, partly because they send an important message to all participants: Scholarship is global. It traverses the world and unites nations and cultures. I know you will be striving to excel in the competition, but I also encourage all contestants to take advantage of this unique opportunity to meet and to establish contact with young scientists from all over the world. I am convinced you are on an important path: The great challenges of ­today and tomorrow – addressing climate change, and providing clean water, food and en­ergy to an increasing global population – all of these will depend greatly on advances in the natural sciences. I hope your stay at the University of Zurich and in Switzerland is stimu­ lating and enriching – and I naturally wish you all the best for the games. Prof. Michael O. Hengartner President of the University of Zurich 5 We had a dream … In 1995, the first Swiss delegation participated at the IPhO in Canberra, ­Australia. Since then, many young students from Switzerland and the Principality of ­Liechtenstein have been inspired by the passion of science and physics in par­ ticular. The IPhO creates an environment for sharing this passion among peers from all over the world. In 1999 at the IPhO in Padua, Italy, the request of Switzerland to host the 47th International Physics Olympiad together with Liechtenstein was approved. We had a dream. Even though Switzerland and Liechtenstein are very small countries, they are undoubtedly amongst the leading countries in innovation, science and re­ search. To maintain this position, it is crucial that we promote up-and-coming young scientists in an attractive way. I am convinced that the Scientific Olympiads meet this need. The IPhO 2016 in Zurich aims to express our high regard towards the sciences. The first planning steps towards IPhO 2016 were taken a long time ago by a small group of former IPhO participants and team leaders, all volunteers. Our objective of organising an IPhO in Switzerland and Liechtenstein seemed almost out of reach or very far away, especially as we are a small association. But we had a dream and were driven by passion! What has happened since then, I wouldn’t have dared to imagine. We knocked on many doors – and the doors were opened by people who share our values, supported our project, joined the project and became part of the project – again and again and again. And here we are today, the IPhO 2016 is about to take place in Zurich. I would like to seize the opportunity to thank everybody involved for their ­generous funding, their institutional support, their scientific contribution, the volun­teers, and hours and hours of hard work. Without all these passionate ­people the IPhO would not have been possible. We are proud to welcome and to host you as our guests in Zurich and hope that this event inspires you. ... and now that dream is coming true. Simon Birrer Co-Chairman IPhO 2016 Swiss Physics Olympiads Association of Swiss Scientific Olympiads 7 If the Science Olympiads Didn't Exist, We'd Have to Invent Them Competitions such as the IPhO are needed now more than ever. There are three main reasons why SERI (Swiss State Secretariat for Education, Research and Innovation) supports them: 1. They encourage young people: Youth is far more than merely an age category. Georges Bernanos, a French writer, summed it up nicely when he said: “The fever of youth keeps the rest of the world at a normal temperature”. That illustrates what we have to thank young people for, and why we should nurture them and offer them the opportunity to maximise their potential. At a time when society is increasingly evolving into an ‘ageing society’, and when innovativeness and creativity are increasingly becoming key factors for competitiveness, this is more valid than ever. 2. They encourage scientific excellence: The outstanding results produced by the young people taking part in the IPhO are not flukes or something conjured out of a hat. It takes a good deal of hard work and willpower to overcome hurdles and persevere. It also takes a good dose of curiosity and a willingness to ques­ tion things, to think and act out of the box. And – last but not least – it re­quires the ability to communicate and work as a team. These are all factors that are of decisive importance for leading global centres of science and learning such as Switzerland. 3. They encourage international exchanges of people and ideas: The fos­ tering of contacts across borders has always played a vital role in developing new scientific approaches and making new findings, and even more so in the future. The ability to communicate with people from other countries, to understand their way of thinking and to cooperate does not come about by itself. This, too, has to be learned – and the earlier the better – so that the foundations are laid to enable young scientists to appreciate diversity and to harness it creatively for themselves and for their environment. Switzerland is honoured to host the IPhO. I wish all those taking part every success. And I would like to thank all the parents, teachers and event organ­isers for their dedication and commitment. State Secretary Mauro Dell‘Ambrogio Swiss State Secretariat for Education, Research and Innovation 9 “Maybe knowledge is as fundamental, or even more fundamental than [material] reality.” – by Anton Zeilinger, Austrian quantum physicist Knowledge about the laws of physics is a gift; a gift that needs to be well g ­ roomed and cared for. The International Physics Olympiad is an institution, which offers exactly this: a unique opportunity for cross-cultural youth exchange and a way to encourage junior scientists. Since 1999, the Government of Liechtenstein has supported young people's efforts to join and contribute to this event. Over the last two decades participants from Liechtenstein have brought home prized ­medals and precious experiences from International Physics Olympiads from diverse corners of the world. Now it is our turn to express our acknowledgement and gratitude to this institution: I am very proud that Liechtenstein is hosting the IPhO 2016 together with our Swiss partners, enabling the “Usain Bolts” and “Michael Phelps” of physics to get together to share and challenge their knowledge. The successful cooperation with the University of Zurich enabled us to set up a hap­ pening for approximately one thousand people, participants, students, leaders and observers; an event characterised by a joint effort to promote science and technical education. It serves to encourage the young generation to venture into technical and scientific professions, so that they may contribute toward a future of wealth and prosperity based on technical progress and on cross-cultural under­ standing. With this in mind, I want to express my thanks to our partners and to all who supported IPhO 2016 politically, financially or through hard work. I wish our guests a highly successful outcome to this week, lifelong experiences and many new and rewarding friendships. Aurelia Frick Minister of Foreign Affairs, Culture and Education Liechtenstein 11 Welcome by Mayor of Zurich Welcome to Zurich Yes, Zurich is a small city in a small country. But in terms of excellence in the field of science and research, both Zurich and Switzerland are big players. Few nations are as innovative as Switzerland. Viewed in this light, Zurich may justly be called the right host city for the International Physics Olympiad 2016, all the more so since we have been committed to the pursuit of excellence in this field for some 150 years now. The University of Zurich is where eminent physicists like Wilhelm Röntgen, Albert Einstein and Werner Schrödinger once studied, earned a PhD or worked as lecturers and researchers. It is therefore a great pleasure for me to offer a very warm welcome to all of you as participants in the International Physics Olympiad 2016! As an alumna of ETH Zurich, I am well aware of just how high the stand­ard of teaching and research is at Zurich’s universities, and I note with pride the great regard in which this centre of scientific excellence is held by students and rese­ archers throughout the world. Of course, our two universities are more than just first-rate education and research institutions. They also understand them­selves as a part of the solution to mankind’s most urgent problems – poverty, hunger, disease and the threat to our very existence caused by the spread of human civi­ lisation. Or to quote the mission statement of the University of Zurich: “Academic freedom calls for a high degree of responsibility, including reflection on the ethi­ cal implications of research activities for humans, animals and the environment.” Knowledge establishes an obligation and science provides the tools society must use to tackle the big issues facing our world. Zurich is ready and willing to help find solutions. We have developed a traffic system that prioritises environment-friendly public transportation vehicles like buses, trams and railways. We have highly efficient and ecology-oriented traf­ fic, energy and waste disposal infrastructures. Waste heat from various sources is utilised to cover residential heating needs, and we produce electricity that is as CO2 neutral as possible.. All this would not have been possible without the innovative capacity of our universities. Corine Mauch Mayor of Zurich 13 People behind IPho 2016 – Operative Lead IPhO 2016 – Operative Lead Simon Birrer Co-Chairman IPhO 2016 Swiss Physics Olympiad “I am looking forward to see the IPhO participants taking their responsibilities in facing the challenges of today and tomorrow, contributing with their talent and skills. May IPhO let them gain momentum.” Dr. Thomas Uehlinger Head of the Academic Committee Swiss Physics Olympiad “I look forward to a competition that challenges and, at the same time, inspires participants both in view of their future career in science as well as on a very personal level.” Andrea Schneider General Manager IPhO 2016 University of Zurich “I look forward to this multicultural gathering and hope that, through our activities, we manage to create an atmosphere of togetherness. Something that is urgently needed today.” Marco Gerber Head Hospitality and Logistics Association of Swiss Scientific Olympiads “I‘m looking forward to guests leaving Zurich with unforget­ table, and hopefully positive memories, a horizon broadened by interesting experiences, and a lot of new friends from all over the world.” 15 IPhO 2016 – Core Team Tobias Wihler Volunteer Management and Hospitality Interface Marketing “The privilege of having a meaningful job where I can contribute passion and ­experience is what I would like to achieve in my professional life.” Tanja Müller Volunteer Management and Hospitality Interface Marketing “I am looking forward to experiencing an event with many exciting encounters and I am convinced that we will all keep the IPhO 2016 in good memory.” 16 Roman Ernst Communications Business Campaigning “I’m excited about working with motivated and committed people who push past their limits and unite through their shared passion for physics.” Richard Staub Events Richard Staub Event Management “I am looking forward to an active exchange with participants from all around the world.” Prof. Anton Alekseev Chair of the International Board Meetings University of Geneva “I am looking forward to this great event for young talent which drives ­­ the future of our field.” Prof. Andreas Schilling Coordinator of the Department of Physics University of Zurich “I will be happy to see students from all these different countries in my every­ day working environment: on the beautiful campus, in the canteen and the cafeterias, and in the sports facility where the exams take place – a real change of pace from my daily research, teaching and administration work!” Michele Dolfi Lead Academic IT Swiss Physics Olympiad “I’m really looking forward to seeing what we managed to achieve in organizing the IPhO. It is impressive to see how complex such an event is. Many little details have to match, such that more than thousand people could be coordinated and have all the resources and tools needed for their activity. I’m very happy that I could contribute to it.” Johanna Nyffeler Lead Quality Management Exams Swiss Physics Olympiad “I was involved in the organization quite from the beginning. I saw how we advanced step by step. I am looking forward to seeing the result of this intensive work.” Lionel Philippoz Lead Marking and Moderation University of Zurich / Swiss Physics Olympiad “I am really eager to see this long-planned IPhO dream finally coming true at home. In that sense, I also hope that each participant, be it a s­ tudent or a leader, will enjoy attending this event as much as we did preparing it.” 17 Steering Committee Co-Chairmen Prof. Michael Hengartner President of the University of Zurich Simon Birrer Swiss Physics Olympiad Members Daniel Oehry University of Zurich Dr. Yves Barmaz Swiss Physics Olympiad Fritz Epple Swiss Physics Olympiad Dr. Matthias Hengsberger University of Zurich Dean of the Faculty of Science University of Zurich Prof. Christoph Keller Irène Steinegger-Meier Joint Executive Director Swiss Scientific Olympiads Prof. Ulrich Straumann Prof. Christof Aegerter Delegate of the Office of Education of the Principality of Liechtenstein Prof. Bernhard Schmid 18 Academic Committee Members Director of the Department of Physics, University of Zurich Levy Jäger Swiss Physics Olympiad ETH Zurich Prof. Ben Kilminster Organizing Committee Atlant Bieri Irène Steinegger-Meier Communications, Self-employed Science Journalist Media Relations, Association of Swiss Scientific Olympiads Media Relations, University of Zurich Communications, University of Zurich Kurt Bodenmüller Maike Elverfeldt Events, Interface Marketing Dr. Calista Fischer Communications, University of Zurich Selina Furgler University of Zurich Management Assistant, Association of Swiss Scientific Olympiads University of Zurich Events, University of Zurich University of Zurich Management Assistant, University of Zurich Dr. Alexander Kish Aram Kostanyan Dr. Katharina Müller University of Zurich Denys Sutter University of Zurich Dr. Achim Vollhardt University of Zurich Dr. Roland Bernet University of Zurich Reto Maier University of Zurich Advisors Dr. Günther Palfinger Swiss Physics Olympiad Johan Runeson ETH Zurich Roger Stupf Carmelina Genovese Ruth Halter Kira Hussinger Communications, Business Campaigning Beat Müller Media Relations, University of Zurich Monika Röllin Management Assistant, University of Zurich Mirjam Sager Communications, Association of Swiss Scientific Olympiads Beatrice Spichtig Events, University of Zurich 19 Facts Facts about Switzerland Population Switzerland has a permanent resident population of some 8 million, 22.8% of whom are foreign nationals. It has a relatively low birth rate compared to other ­European countries, with the number of births averaging 1.5 per woman. In 2011, ­Switzerland’s population grew by 1.1%, an increase driven chiefly by immigration. Although the number of single- and two-person households in Switzerland is on the rise, over half of the population still live in a family household with children. 20 Geography Switzerland lies at the centre of Western Europe. It borders Germany in the north, Austria and Liechtenstein in the east, Italy in the south and France in the west. With a surface area of 41,285 km2 and measuring 220 kilometres from north to south and 348 kilometres from west to east, Switzerland is one of the smallest countries in the world. What Switzerland lacks in size, it more than makes up for with a highly varied landscape. Lake Maggiore is the lowest point above sea level, at an altitude of 194 metres. At the other extreme, there are mountain peaks rising 4,000 metres above sea level and snow-capped all year long. Standing 4,634 metres above sea level, Dufour Peak in the canton of Valais is the highest mountain in Switzerland. Three geographic regions Switzerland has three main geographic regions: the Jura, the Central Plateau and the Alps which is the largest geographic region and occupies 60% of Switzer­ land’s land area. The plateau occupies only 30% of Switzerland’s land area but is home to over two-thirds of Switzerland’s resident population and most of Switzer­ land’s main cities and towns. The Jura borders the plateau in the northwest and covers over 10% of Switzerland’s land area. Climate and seasons In Switzerland the climate can vary considerably from one region to another. North of the Alps, the climate is temperate, while south of the Alps it is influenced by the Mediterranean and is much milder. The major differences in altitude have created several regional microclimates. Annual rainfall is above the European average. The seasons are clearly defined. When you are here in July, daytime temperatures will range from 18 to 28 °C (65 to 82 °F). Crossing the Alps Switzerland is an important transit country. Freight traffic is particularly heavy on the main artery linking Northern and Southern Europe. A rail and road tunnel which cuts through the Gotthard mountain connects Italy to Northern Europe. Towns and cities Two-thirds of Switzerland’s population live in towns or cities. There are six metro­ politan areas – Zurich, Berne, Basel, Geneva, Lausanne and Ticino – each with a population of at least half a million. Collectively, they are responsible for 59% of the country’s total economic output. 1848: The founding of Switzerland The establishment of the modern state of Switzerland dates back to 1848. Prior to this, Switzerland consisted of a loose alliance of independent cantons. In 1848 Switzerland formed a modern constitution which made a federal state of the confederation. A central government took over certain areas such as the foreign and financial policy responsibilities of the cantons. The Constitution had to link the various interests of the individual cantons with the overall interests of the federal state. Form of government and system of government Switzerland is a parliamentary democracy with a direct democracy. The Federal Assembly of Switzerland has a bicameral parliament: This consists of the National Council of representatives of the people (200 members) and the Council of States representing the cantons (46 members). The Federal Assembly elects the Federal Council – the collective head of state, consisting of 7 members. Federalism and direct democracy Unique to this small country is its strong federalism. This is expressed in two ways: In the strong autonomy of the 26 cantons and their municipalities, as well as in their direct participation in political decision-making. It is not only the cantons that have a major influence – the individual ­citizens do, as well. This is the result of the country’s direct democracy: People’s initiatives and referendums (polls held every quarter) give citizens the chance to influence the government. 21 Science Switzerland is a major international centre for scientific and technological re­ search. For many years the Innovation Union Scoreboard has ranked Switzerland as the most innovative nation in Europe. To date, it has produced 20 Nobel Prize winners. UNESCO World Heritage sites in switzerland Science and the economy Every year, Switzerland invests just under 3% of its gross domestic product (GDP) in research, making it one of the top five research nations in the industrialised world. Two-thirds of research funding comes from the private sector, 20% from national or cantonal budgets, and the rest from various national and international funding agencies. 22 Fields of research Most research is conducted in growth industries such as biotechnology, pharma­ ceuticals, chemicals, environmental and medical technology, as well as in infor­ mation and communication technology. University-based research tends to spe­ cialise in the natural sciences, chiefly physics, chemistry and medicine, as well as in micro- and nanotechnology. Switzerland supervises many research projects overseas and contributes to the European Union’s framework programme on research and technological development. As one of the founding members of the European Space Agency (ESA), Switzerland actively participates in ESA missions. Its national space policy is considered to be a tool for analysing and solving global problems such as cli­ mate change, environmental protection and the prevention of natural and techno­ logical disasters. Research centres Switzerland is home to many world-famous research facilities. - The Physics Institute at the University of Zurich which consists of several groups in particle, astroparticle and condensed matter physics. For further information go to www.physik.uzh.ch/e/research.shtml - The Federal Institutes of Technology in Zurich and Lausanne have earned inter­ national renown for their scientific research. - The European Organisation for Nuclear Research, or CERN for short, has its headquarters on the outskirts of Geneva. Founded in 1954 as a European joint venture, CERN now has 20 contributory states. In September 2008 it launched the “Large Hadron Collider”, the most powerful particle accelerator in the world. - The Paul Scherrer Institute (PSI) is one of the leading research centres in Europe. Scientists from across the world travel to the institute to use its facilities, such as the “Swiss Light Source” and the “Swiss Spallation Neutron Source” . Lavaux vineyard, the city of berne, old town - The European laboratory of the American high-tech company IBM is located just outside Zurich. In addition to numerous joint projects with universities from all over the world, the facility takes part in Swiss and EU research programmes and forges links with other industrial research facilities. Economy Switzerland owes the high productivity of its economy to its liberal market system, political stability and close ties with foreign economies. The national currency is the Swiss franc (CHF). In 2015, Switzerland’s gross domestic product (GDP) was CHF 639 billion. The Great Aletsch Glacier Economic sectors Switzerland is primarily a service economy. 73.7% of the workforce are employed in the tertiary sector (services), 22,8% in the secondary sector (industry) and 3.5% in the primary sector (farming). The main service sector industries are insurance, banking, trade and commerce, and tourism. The secondary sector is dominated by the machinery, electronics, metals and chemical/pharmaceutical industries. The agricultural sector is undergoing changes to the growing demand for organic produce and more environmentally friendly production methods. The real mainstay of the Swiss economy is its highly specialised and ­flexible small and medium-sized enterprises (SMEs). They make up more than 99% of all registered companies in Switzerland, and employ two-thirds of the total workforce. Many foreign firms and Swiss multinationals have their headquarters in Switzerland and are major players in the Swiss economy. Culture Switzerland has a thriving and diverse arts scene. The different cultures within Switzerland are strongly influenced by the cultures of its neighbours France, ­Germany, Italy and Austria. alp grum with raethian railway Cultural policy Two institutions are responsible for shaping and managing Swiss cultural policy. The first is the Federal Office of Cultural Affairs (FOC), which is the Swiss govern­ ment’s centre of expertise for all cultural policy matters, for cultural promotion and for the preservation and dissemination of cultural values. The second is Pro Helvetia, the Swiss Arts Council, which promotes cultural creativity and fosters cultural exchanges. The FOC, Pro Helvetia and the Federal Department of Foreign Affairs (FDFA) share responsibility for the overseas promotion of Swiss culture. 25 Best of 5. Victorinox Swiss Army Knife Best of Swiss Design 10 clever Swiss industrial design items that make life more enjoyable and that every Swiss person knows 1. 5. 1. Rex peeler aka the “Sparschäler” A Swiss design icon and probably the world’s best peeler! It is great for cooking enthusiasts. You will find a very inexpen­ sive one at the nearest Migros store. 6. 2. The SIGG water bottle stands for Swiss tradition, precision and high quality. Manu­factured with a passion for perfec­ tion and a thirst for new ideas since 1908. 7. Caran d’Ache colored pencils 7. 3. 4. 4. Rösti grater Switzerland is the home of the rösti ­grater, invented in the 19th century, which helped elevate common rösti from peasants' fare to a symbol of Swiss ingenuity. This is another classic that lots of Swiss people have grown up with. 8. Jura Chrome Toaster, Model 150 3. Swatch watches Starting with its original plastic watches, a cult classic, Swatch has diversified its of­ ferings considerably and now sells more than a dozen different types of watches. Etymologically, the name “Swatch” is a contraction of “Second Watch” be­cause the new watch was introduced with a new concept of watches as casual, fun, and relatively disposable accessories. 6. School satchel with cowhide This classic Swiss school satchel was very popular among young students and is now experiencing a comeback. 2. SIGG bottle 26 Those who need to be ready for anything take one of these with them every­where. Since 1897, the Swiss Army Knife has been a trusted tool of adventurers around the world. Whether you are exploring the city, the ocean, the mountains or even space, the Swiss Army Knife is the com­ panion you can count on. A very clever and beautiful construction that allows you, to turn your hot toast wit­hout having to touch it. 8. 9. Trisa toothbrush Trisa manufactures state-of-the-art, pro­ fessionally developed products for per­ sonal oral care which are found in many Swiss people’s toilet bags. 9. 10. 10. Traditional accordion aka the “Schwyzerörgeli” The Schwyzerörgeli is a type of diatonic button accordion used in Swiss folk music. The name derives from the town/can­ ton of Schwyz where it was developed. Örgeli is the diminutive form of the word Orgel (organ). Outside ­Switzerland the ins­ trument is not well known and hard to find. 27 Liechtenstein Welcome to Liechtenstein! The Principality of Liechtenstein is a tiny, landlocked Alpine country, bordered by Switzerland to its west and by Austria to its east. The Rhine River forms a natural border between Switzerland and Liechtenstein. Covering an area of just 160 km2, Liechtenstein is the smallest German-speaking country in the world. Vaduz Castle is the seat of the Princes of Liechtenstein and the landmark of the town of Vaduz. Head of state is the reigning Prince Hans-Adam II von und zu Liechtenstein. The national holiday is August 15. During your visit we will be taking you for a short walk through the centre of Vaduz. From there the buses will set off on a road trip through the country. Guides will inform you about different sights along the way and give you the key facts of this still fairly young but economically strong monarchy with 37,000 inhabitants. We hope you enjoy your stay and are looking forward to welcoming you in Liechtenstein. 28 Creation of Liechtenstein After being ruled by various different noble families (Counts of Werdenberg, Sulz, Brandis, Hohenems), Schellenberg and Vaduz were purchased by Prince Johann Adam in 1699 and 1712 respectively. The last counts to rule the area currently known as Liechtenstein were the Counts of Hohenems. Due to their large debts they were forced to sell the County of Vaduz and the Dominion of Schellenberg. In 1699 Prince Johann Adam purchased the Dominion of Schellenberg and in 1712 the County of Vaduz. The two territories were united by an imperial diploma issued by Emperor Karl VI on 23 January 1719, creating an imperial principality bearing the name Liechtenstein. As this new country only comprised small farming villages, the administrative authority was established in the nearest town, Feldkirch, Austria, where the Prince built the Palais Liechtenstein for the admini­strative staff. Princely House (head of state) Prince Franz Josef II (1906-1989) became the first prince to have his official place of residence in Liechtenstein when he moved to Vaduz in 1938. The Princely House today The current head of state, Prince Hans-Adam II, is the 15th prince of the House of Liechtenstein. He was born in 1945 and is the first reigning prince to have grown up in the Principality. When his father Prince Franz Josef II died in 1989, Hans-Adam II became prince. In 2004, he passed his sovereign powers as head of state to His ­ erene Highness Hereditary Prince Alois in order to prepare him for his future position S as prince. So today, Hans-Adam II is still the prince, but it is his son Hereditary Prince Alois who is responsible for performing duties as head of state. A diverse economic area Liechtenstein is one of the few countries in the world with financial reserves instead of public debt. While its area of 160 km² makes Liechtenstein one of the smallest countries in the world, when it comes to doing business it is among the big global players. The Principality is home to many international market lead­ers and industrial companies, an innovative financial centre and a wide range of manu­facturing and trade enterprises. More than 4300 companies in Liechtenstein mean that there is one business for every nine inhabitants in the Principality. Indeed, Liechtenstein has almost as many jobs as citizens – proof, if any was needed, of its economic success. The country has a long tradition of cooperating with partners. Since 1924 it is part of a customs union with Switzerland and uses the Swiss franc as its official currency. The Principality is a member of the most important European and international organisations. Besides, Liechtenstein is an EEA member. Innovations from Liechtenstein Did you know that your favourite singer and your dentist most likely use products from Liechtenstein? Did you know that there is at least one component in every se­ cond car that was developed in Liechtenstein? Liechtenstein is almost every­where. Companies with headquarters in Liechtenstein are proving to be successful in global niche markets. Take ThyssenKrupp Presta AG, for instance, one of the most successful manufacturers of steering systems worldwide and a technology leader in the field of cold forging. Have you ever heard of Neutrik AG? Maybe not, but you have definitely heard something thanks to this company from Liechtenstein. Neutrik has re­ volutionized the music scene with its audio connectors. This Schaan-based company is a leading designer, manufacturer and marketer of audio, coaxial, power and circular connectors. Also based in Schaan is Ivoclar Vivadent. The company offers products and systems for dentists and dental technicians, and ships them to 120 countries worldwide. Your dentist most likely knows all about them. Other world-renowned companies in Liechtenstein are Hilcona AG, Triesen, Hilti AG, Schaan, Hoval AG, Triesen, Oerlikon Balzers, Balzers, Optics Balzers AG, Balzers, Ospelt AG, Schaan 29 Impressions from liechtenstein vaduz castle government quarter View from furstensteig economic area UZH The University of Zurich: Proud Host of the International Physics Olympiad 32 The University of Zurich is home to this year’s International Physics Olympiad – a natural choice, given our institution’s long history of excellence in physics. Begin­ ning with Wilhelm Conrad Röntgen, who was awarded the first-ever Nobel Prize in physics, there has been no shortage of physics greats at UZH: Nobel laure­ ates Max von Laue and K. Alex Müller taught and conducted seminal research at UZH, while luminaries Albert Einstein und Erwin Schrödinger both developed their groundbreaking theories at our University. In addition to excellence in physics, the international standing of the Uni­ versity of Zurich makes our institution an ideal partner for the Olympiad: UZH maintains agreements and partnerships with numerous renowned higher educa­ tion institutions throughout the world. The University’s outstanding research pro­ grammes and centres of competence attract the brightest minds in Switzerland and abroad. That makes us all the more pleased to welcome young students from all corners of the globe and the Physics Olympiad. Finding answers to the future’s big questions is a goal at any university – at UZH, we know this is done best by working with promising talent and fostering their development. A pioneering spirit Scholarship thrives in Zurich’s open-minded environment, and has a long tradition of doing so. The University opened its doors in 1833 – the first university in Europe to be founded by a democratic state rather than a monarch or the church. UZH was also a pioneer in women’s rights: The University of Zurich was the second European university, after the Sorbonne in Paris, to admit women to study pro­ grammes. This pioneering spirit naturally extends to achievements in scholarship, as is reflected in the many renowned distinctions conferred to UZH members over the years, including 12 Nobel Prizes. In recognition of its standing as a leading research university in Europe, UZH was invited to join the prestigious League of European Research Universities (LERU) in 2006. UZH is a worldwide leader in research in the life sciences, medicine, business and economics. Fostering intellectual curiosity The University of Zurich is by far Switzerland’s largest university, not to mention the country’s most diverse higher education institution. UZH offers a first-rate 33 UNIVERSITY OF zurich academic education to its over 25,000 students, who can choose from roughly 100 different fields of study at one of the seven faculties. At UZH, students gain first-hand knowledge from the excellent teaching staff, who employ state-of-theart methodologies and focus on research-based teaching. Early on, we encour­ age students to develop independent and critical thinking skills in order to gener­ ate their own ideas and explore fresh and unfamiliar ways of looking at the world. UZH provides ambitious students with ideal conditions for achieving their potential. They can design their studies flexibly and have access to outstanding libraries and study centres. Academic and career advisors offer valuable support during their studies and help them plan their careers. Students also profit from UZH’s privileged location in the middle of town: close to Zurich’s excellent cultural institutions and close to nature with the nearby Alps. As host of the 2016 International Physics Olympiad, the University of ­Zurich extends a warm welcome to curious young minds from all over the world. We wish you an inspired competition, stimulating experiences, and fruitful en­ counters: Let the games begin! Treats 10 Swiss Treats Everybody Loves 1. A very classic Swiss thirst quencher: Rivella. 34 1. Rivella 6. branche 6. A sweet soul soother for every situation in life: Branche chocolate bar. 2. Zweifel Chips: the undisputed champion in flavour and crunchiness. 7. No raclette will ever happen without Chirat gherkins. 3. Le Gruyère Cheese: you need 12 litres of milk to produce one kilo of cheese. 8. Sinalco: another dope fruit lemonad which is super bubbly. 4. Pepping up meals since 1886: Maggi seasoning. 9. If you go hiking in the mountains, “Landjäger” sausages should be your snack of choice. 5. In America iconic symbol of canned food is the Campbell’s tomato soup – in Switzerland, though, it is Hero’s canned ravioli. Try one if you are hungover or just way too lazy to cook. 5. ravioli 8. Sinalco 35 10. … and if you have a craving for something sweet after hiking, try “Kambly Bretzeli” cookies. 7. Chirat gherkins 2. zweifel chips 3. Le gruyere cheese 4. maggi seasoning 9. landjager 10. kambly Bretzeli General General Advice Currency Please note that Switzerland still uses the Swiss franc, usually indicated as “Fr.” or “CHF”. Prices in many shops are none­ theless additionally indicated in euros. Merchants may accept euros but they are not obliged to do so. Change ­given back to the client will most likely be in Swiss francs. 36 Tipping As in most countries, it is customary in Switzerland to leave a tip if you were satis­fied with the service and the food or drinks. There are no regulations about how much of a tip to give – the rule of thumb is 5 to 10 per cent. Electricity The voltage in Switzerland, as in most of Europe, is 230 V / 50 Hz. Switzerland uses Type C (2-pin) and Type J (3-pin) plugs. (Type C 2-pin plugs also fit J sockets.) Most power sockets are designed for three-pin round plugs. The standard con­ tinental-type plug with two round pins, applied for many electrical travel pro­ ducts, may be used without problems. Adaptors are available in most hotels. Drinking water Swiss drinking water is a quality product from natural resources, 80% of which stems from natural springs and ground­ water and the rest from lakes. Strict regu­ lations concerning water and the quality of it have led to such positive develop­ ment that, in some places, you can drink water straight out of a lake without giving it a second thought! Swiss tap water is also greener than water purchased in bottles or mineral waters that occasion­ ally had to travel large distances. As our water is of excellent quality and Switzerland is also very keen on reducing the amount of waste produced daily, we will offer you a SIGG water bottle which you can use over and over again. Rinse it prior to the first use. Please take the bot­ tle with you and fill it daily with tap water. Thank you for helping us in our effort to reduce the amount of waste produced. Public transport Public transport usually leaves on time, so please make sure that you are there at the right time. All our guests will be able to use public transport in most areas of the city of Zurich for free when carrying the IPhO 2016 badge. This free pass is valid from July 9 to 18 in ­zones 110 and 121 (city centre and airport area) except for the nighttime network on Friday and Saturday nights when a supplemental nighttime ticket has to be purchased. Enjoying a trip to the mountains Our mountain regions offer you impressi­ ve experiences. In order to enjoy your trip to the mountains, make sure you are well equipped. Your shoes and jacket need to meet the demands of the mountain environment. Expect the tempera­ tures there to be around 10 to 15 degrees Celsius lower than in Zurich. So please bring along a jacket, sun protection (sun­ glasses and sunscreen) and wear sturdy shoes. Smoking policy Smoking is prohibited in most ­enclosed areas such as restaurants, public build­ ings and offices. Smoking is also forbid­ den on public transport. Smoking is permitted in separate smoking rooms, outdoors and in private homes. drinking water from fountain 37 Food Top Swiss Food & Liechtenstein’s Käsknöpfle Rösti (see above), noodles or rice. You can substitute the veal with chicken, pork or tofu if you're making it yourself. Swiss and Liechtensteiner food is influenced by the cuisine in neighbouring countries and feature lots of regional dishes, many of which are based on cheese and potatoes, the ingredients that have been readily available to Alpine farmers for centuries. One thing is for sure, you will not go hungry in Switzerland or Liechtenstein. 38 Birchermüesli You may have had muesli for breakfast before, but did you know that it was in­ vented in Switzerland around 1900 by a Dr. Maximilian Bircher-Benner? Believing that a diet of cereals, fruits and vegetables was better for humans than a heavy meat-based diet, he created ­ ­Birchermüesli – a mix of rolled oat flakes, fruit, nuts, lemon juice and condensed milk – for patients in his Zurich sanatori­ um. It's still eaten today and is not only a popular breakfast item but occasionally an evening meal, too. birchermuesli -Rost i Zopf Zopf There are many types of bread in ­Switzerland but one of the most popular and delicious is a soft white loaf called Zopf. You'll be able to recognise it ea­ sily because it's a plaited loaf (the word Zopf means ‘braid') with a golden crust, very much like the Jewish bread called ­challah. Some say it originates from an ancient custom of widows cutting off their braids and burying them with their husbands. The dough is made from whi­ te flour, milk, eggs, butter and yeast, plai­ ted into a braid and then brushed with egg yolk before baking. It's traditionally eaten on Sunday mornings. Rösti Rösti is a potato dish made by frying (or occasionally baking) flat round pat­ ties of coarsely grated raw or parboiled (semi-cooked), seasoned potato in oil. They're crisp on the outside and soft and melting on the inside. Sometimes bacon, onion, cheese – or even apple – are ad­ ded to the mix. Eat it as a side dish to accompany fried eggs and spinach or a sausage meat called Fleischkäse. It was originally eaten as a breakfast by Bernese farmers but these days you'll ­ find it enjoyed all over the world as well as here in Switzerland where it's consi­ dered a national dish. Zürcher Geschnetzeltes This translates as "cut meat Zurich style", but if you see it on a menu in Switzerland the dish will be made using strips of veal (calf meat) and sometimes veal liver. The veal is cooked with mushrooms, onions, wine and cream and usually eaten with Cheese fondue Cheese fondue is a great meal to share with friends. It's a dish made of melted cheese (e.g. Gruyère and Emmentaler) and other ingredients, such as garlic, white wine, a little cornflour/corn starch and often kirsch (cherry brandy), ­served up at the table in a special ceramic pot called a caquelon, with a small ­burner underneath it to keep the fondue at a constant temperature. You spear small cubes of bread onto long-stemmed forks and dip them into the hot cheese (taking care not to lose the bread in the fondue). 39 ue Chee nd se Fo 40 Raclette Raclette is the name of a Swiss cheese made from cow's milk (slightly nutty, a little like Gruyère) but it's also the name of a very popular meal. In the old days, an entire wheel of cheese was held up in front of a fire and as the cheese melted, it was scraped off onto a plate to be ­eaten. The name is derived from the French ­racler, meaning ‘to scrape'. Today, slices of raclette are melted in table-top raclette pans or grills, and can be accompanied by small potatoes cooked in their skins, vegetables, charcuterie, pickled gherkins and onions, and bread. -rac lett e Saffron risotto Saffron is grown in the Swiss canton of Valais, and it's an essential ingredient of a traditional Ticino dish often served with a Luganighe sausage, a raw ­sausage made with pork, spices and red wine. Ticino is the southernmost canton of S ­ witzerland, sharing a border with the ­Italian regions of Piedmont and L ­ ombardy, and one of the two cantons where Italian is the official language. Saffron risotto is a comforting dish made from risotto rice ­cooked slowly with onions, broth, saffron threads, wine and cheese, and easy to make at home. Liechtensteiner Käsknöpfle Käsknöpfle is a hearty, pasta-like dish with melted cheese and one of Liechten­ stein’s classic delicacies. Freshly made, they are served with crisp fried onions on top. Traditional side dishes are green salad, potato salad and apple sauce. The dish invariably goes down well – whether enjoyed on a sunny terrace in summer, or in front of an open fire in winter. Älplermagronen Sometimes called herdsman's macaroni, Älplermagronen is a traditional all-in-one dish from the German part of S ­ witzerland. It uses all the ingredients that were avail­ able to the herdsmen who were looking after their cows on the mountain pas­ tures of the slopes of the Alps: ­cheese, potatoes, onions, macaroni, milk or ­cream – and apples. The classic version is made by layering cooked potatoes and macaroni with cream and cheese, baking it in the oven and then serving it with fried onion rings and a stewed apple sauce on top. Sometimes it comes with bacon as well. It's a hearty meal that will really warm you up on a cold night. Bündner Nusstorte The Bündner Nusstorte, sometimes ­called an Engadiner Nusstorte, is a yummy cara­ melised, nut-filled pastry origin­ating from the canton of ­Graubünden. It's made in small independent bakeries all over the canton, each of which has its own vari­ ation on the basic recipe of short-crust pastry made from flour, sugar, egg, ­butter and salt with a filling of caramelised ­sugar, cream and chopped nuts, usually walnuts. ­ Appenzeller Biber Luckily, the Appenzeller Biber (Appenzell Gingerbread), has nothing in common with its singing and wildly pubescent na­ mesake. The classic version is a ginger­ bread speciality, known as far back as the 16th century. In its flatbread form, the Biber contains natural honey, while the smaller version, the Biberli, can have a variety of fillings, and is frequently ser­ ved as a snack. The word Biber derives from the original term bimenzelte, me­ aning “clove flatbread”. As every baker has a different house recipe and fillings, Biber tastes different wherever you go. Of course it can also be adapted to be healthier. Nussto rte 41 Aargauer Rüeblitorte Carrot cake may well sound healthy, as they actually contain lots of carrots – but they also contain a lot of butter, hazelnuts, eggs, sugar, flour and jam. Rüeblitorte (carrot cake), is especially ­ popular in the German-speaking regions of Switzerland, and originally comes from the canton of Aargau, which is also nick­ named “Rüebliland” (“carrot country”), as carrots are grown there in large quan­ tities. orte t -ruebli Programme Sun 10 July Mon 11 July Tue 12 July Students Leaders Arrival, Registration Arrival, Registration Opening Event, Irchel Campus Opening Event, Irchel Campus Exploring Irchel Campus (half of the group) Excursion to the Paul Scherrer Institute (half of the group) Discussion/Translation Experimental Exam Experimental Exam, Irchel Campus (half of the group) Exploring Zurich (half of the group) Excursion to Rigi 42 Wed 13 July Discussion / Translation of the Theoretical Exam Excursion to the Principality of Liechtenstein Theoretical Exam, Irchel Campus Thu 14 July Derek Muller, Veritasium Inspirational Speech, Technopark Mon 11 July Tue 12 July 43 Wed 13 July Excursion to the Principality of Liechtenstein Derek Muller, Veritasium Inspirational Speech, Irchel Campus Corrections Midterm Party “Get Ready for the Swiss Challenge”, Irchel Campus Midterm Party “Get Ready for the Swiss Challenge”, Irchel Campus Corrections / Submissions Fri 15 July Excursion to Rigi (half of the group) CERN / International Red Cross Museum (half of the group) Sat 16 July Excursion to Rigi (half of the group) CERN / International Red Cross Museum (half of the group) International Board / Moderation Closing Ceremony, Tonhalle Zurich Farewell Reception, Irchel Campus Closing Ceremony, Tonhalle Zurich Farewell Reception, Irchel Campus Departure Departure Sun 17 July Sun 10 July Excursion to the Paul Scherrer Institute (optional) Thu 14 July Fri 15 July Sat 16 July Sun 17 July Highlights Programme Highlights Opening Event “Grüezi” and welcome to Switzerland and Liechtenstein! On Monday, 11 July, it will finally come time to officially open the 47th Interna­ tional Physics Olympiad 2016. We will host the Opening Event at the University of Zurich, Irchel Campus, which students will call “home” for the next few days. One of the highlights of this event will most certainly be the presentation of the 85 international delegations of students from all over the world. Date: Monday, 11 July Time: 10 – 11.30 a.m. Location: University of Zurich, Irchel Campus, Auditorium Maximum 44 Midterm Party – get ready for the Swiss challenge! The exams are over and that needs to be celebrated. However, the next challenge is already awaiting you at Irchel Campus. A Swiss evening full of sports compe­ titions, alpine traditions and typical Swiss food. Taste, explore and experience Switzerland: milk a cow, play the alphorn and enjoy real raclette. And we promise there’s more - get ready for the Swiss challenge! Date: Thursday, 14 July Time: 6 – 9 p.m. Location: University of Zurich, Irchel Campus Closing Ceremony The Closing Ceremony of the 47th International Physics Olympiad 2016 will take place in the prestigious “Tonhalle”. There we will take a look back at the examina­ tion days and excursions plus there will be an awards ceremony where we will ho­ nour students’ achievements and present medals. The 47th International Physics Olympiad 2016 will end with a farewell lunch at the Irchel Campus. Date: Sunday, 17 July Time: 10 – 2.30 p.m. Location: Tonhalle Zurich and University of Zurich, Irchel Campus By the will of the people. Research and Education at the Service of Mankind – the University of Zurich’s Irchel Campus Situated in a natural park below Zurichberg (“mountain of Zurich”), Irchel Campus is home to 31 internationally renowned research institutes from natural sciences, preclinical medicine and veterinary medicine and an important research library, a museum and important research collections ranging from anatomy to zoology. The University of Zurich being a public university funded by the canton of Zurich and its people, educating the young is the second pillar on which the University rests. In a public poll on 14 March 1971, the voters of the Canton Zurich gave the University of Zurich the green light for building a new campus in the Irchel area as the number of enrolled students had been constantly growing. Con­struction work started in 1973 and was completed in 1979. But already in 1983 a second stage of new buildings was launched. As the Faculty of Science is the fastest ­growing faculty of the University of Zurich, a fifth construction stage has just ­begun this April – a new complex for Chemistry is now being constructed. Today over 7000 people work and study at Irchel Campus on a daily basis. In the afternoon of 11 July the students will have the opportunity to get insights into some of the research done at Irchel Campus and to discuss with some of our professors. Artworks at Irchel Campus In Switzerland Canton’s are obliged - when constructing public buildings and infrastructure - to invest a certain share of the investment into art. Thus Irchel Campus hosts a large number of artworks by famous Swiss artists such as for instance H.R. Giger (the father of the monster “Alien”). Artworks at Irchel Campus 45 46 Queen of the Mountains: Rigi The excursion to Mount Rigi will be a highlight for all participants from all over the world. The mountain in the heart of Switzerland is the birthplace of tourism in Switzer­ land. Back in 1816, the first mountain hotel in Switzerland was built on the top of Rigi – Hotel Rigi Kulm. 200 years of history, of unique views and of un­forgettable nature experiences on the so called “Queen of the mountains”. The authentic Swiss experience tour will lead you from Zurich towards Arth Goldau located in the foothills of Mount Rigi. The Mount Rigi Railway ­cogwheel train will then bring you up to the top of the “Queen”. After you have enjoyed your visit to Switzerland's most authentic mountain and the most popular mountain destination of the citizens of Switzerland, you will then be transported downhill by Europe’s first mountain railway all the way to the lakeside and to the very picturesque village of Vitznau. From there you will board a typical Swiss boat and head towards Lucerne on the Lake of L ­ ucerne. Of ­course there will be some time for taking pictures of the world-­famous K ­ apellbrücke ­(literally, Chapel Bridge) in Lucerne. This great mountain/lake-combination excursion will end back in Zurich. mount rigi derek Muller 47 Inspirational Speech by Derek Muller Derek Muller is a passionate science educator, communicator, and filmmaker. He completed his bachelor’s in Engineering Physics at Queen’s University in ­Kingston, Canada and a PhD in Physics Education Research at the University of Sydney. Derek studied how to design multimedia to teach physics effectively. One of his major findings is that addressing misconceptions first is often essential to engage the audience and promote conceptual change. He puts this research into practice as a presenter for Catalyst and as ­director of the science video blog, Veritasium. Derek has published in several international science education journals and presented at numerous education conferences worldwide. He also teaches physics at high school and university levels. We are very pleased that Derek will talk about his work during the IPhO 2016. At the same time he will be awarded with the “cogito-Prize 2016” for his achieve­ ments. The goal of “the cogito foundation” is to encourage dialogue be­tween science and technology on the one hand and humanities and the social sciences on the other. It also strives to make scientific thinking better known and under­ stood by the public at large. steamboat Welcome to the Paul Scherrer Institute PSI The PSI is the largest research institute for natural and engineering sciences in Switzerland, conducting cutting-edge research in three main fields: “Matter and Materials”, “Energy and Environment” and “Human Health”. PSI develops, builds and operates large, complex research facilities. Every year, more than 2500 scien­ tists from Switzerland and around the world come to PSI to use our unique facil­ ities to carry out experiments that are not possible anywhere else. PSI is commit­ ted to the training of future generations. Therefore, about one quarter of our staff are apprentices, post-graduates or post-docs. Maybe one day you will be one of them. PSI has an annual budget of approximately CHF 370 million and is primarily financed by the Swiss Confederation. 48 Main areas of research Researchers in the area of “Matter and Materials” study the internal structure of a wide range of different materials. Results contribute towards a better understan­ ding of processes occurring in nature and provide starting points in the develop­ ment of new materials for technical applications. The goal of activities in the “Energy and Environment” area is to develop new technologies to facilitate the creation of a sustainable and secure supply of en­ergy, as well as an uncontaminated environment. In the “Human Health” area, researchers are searching for the causes of illnesses, and exploring potential treatment methods. Their basic research activi­ ties also include the clarification of generic processes in living organisms. psi with SWiss light source sls ul the Pa ute it r Inst e r r e h Sc Large research facilities PSI operates large scientific research facilities, such as the SINQ neutron ­source, the Swiss Light Source (SLS), the SμS muon source and, starting in 2017, the x-ray free-electron laser SwissFEL. All offer out-of-the-ordinary insights into the processes taking place in the interior of different substances and materials. These are the only such facilities within Switzerland, and some are the only ones in the world. User laboratory PSI provides access to their large research facilities via a user service to re­ searchers from universities, other research centres and industry. Every year, PSI registers more than 5000 visits of scientists from around the world, performing their experiments at approximately 40 measuring stations. All IPhO students will enjoy a fascinating tour through the PSI, gaining insight into current projects and meeting researchers along the way. 49 the CMS View of 50 or detect Large Ha dron Collider A Day in Geneva CERN, the European Organization for Nuclear Research At CERN, more than 12,000 scientists from more than 100 nations work in the biggest particle physics laboratory in the world. CERN operates the Large Hadron Collider (LHC), a 27-kilometre ring of superconducting magnets with a number of accelerating structures to boost the energy of the particle along the way, located in a tunnel 100 m underground along the Franco-Swiss border near Geneva. The particles inside the LHC are made to collide more than 1 billion times per second in four interaction points, thereby recreating conditions in the universe a fraction of a second after the Big Bang. By analysing these events, observed by four huge particle detectors (ALICE, ­ATLAS, CMS, LHCb), scientists explore the fundamental structure of space and time. CERN’s research also pushes back the frontiers of technology, resulting in innov­ations in computing, medical diagnostics and therapy, material science and many other fields. We are very excited that – together with CERN – we were able to create a unique and unforgettable excursion programme for our IPhO students. International Red Cross and Red Crescent Museum The International Red Cross and Red Crescent Museum is a museum located in Geneva. It first opened in 1988 and underwent a significant renovation from 2011 to 2013. The exhibition named “The Humanitarian Adventure” presents three contemporary problems through three distinct spaces; each created by a different archi­tect: “Defending human dignity”, “Reconstructing family links” and “Re­ducing natural risks”. Although it devotes a lot of space to knowledge and reflection, the muse­ ography introduces a new dimension to its devices: emotion. As they ­enter each of the three thematic areas, visitors are invited to engage in an awareness-build­ ing experience even before they discover the area’s informational content. Twelve witnesses trace the main thread of “The Humanitarian Adventure”. They first wel­ come visitors in a scenographic device and then accompany them on their tour through the exhibition. The witnesses are there to remind us that human relations are at the heart of all humanitarian action. Situated next to the seat of the International Red Cross and Red ­Crescent ­Movement, the museum will surely inspire the IPhO students on their Geneva excursion. nd m ross ant Museu C d e Re Cresc Red 51 Language Zurich 2000-Watt Society Twenty years ago, a vision of a 2000-Watt Society was developed at the Swiss Federal Institute of Technology (ETH) in Zürich, Switzerland. In 2008, the citizens of Zurich adopted the goal of limiting energy consumption to a maximum of 2500 watts per person by 2050. At least 80% of energy needs are to be met using re­ newable energy, meaning that only one tonne of greenhouse gas is given off per capita per year. The students will get a glance on how a city like Zurich implements this concept on a daily operational level: visits include power utility, water supply and public transport facilities. 52 power and arts at ewz Photovoltaik plant at tram depot VBZ Switzerland – Small Country, Four Official Languages Switzerland is a multicultural and multilingual country. This is due in no small part to geography, as Switzerland shares its borders with three major European cul­ tures – German-speaking Europe, France and Italy. Switzerland has four national languages, some of which are spoken more widely than others. - German (65.6%): Two-thirds of the population live in Switzerland’s 17­German-­ speaking cantons. In addition to speaking standard German, each ­canton has its own distinct Swiss-German dialect. - French (22.8%): Western Switzerland (“Romandie”) is home to the country’s native French speakers. - Italian (8.5%): Italian is the official language of Ticino and the southern valleys of Graubünden. - Rumantsch: This language is descended from Vulgar Latin and is spoken in the only trilingual canton, Graubünden. The other two languages in Graubünden are German and Italian. Most Swiss speak more than one language, be it another national language or English. Foreign nationals living in Switzerland have brought with them their own languages, too. Multicultural Switzerland Almost 1.8 million foreigners live in Switzerland. Close to one-fifth were born here, making them second- or third-generation immigrants. Compared to other countries, ­Switzerland has a relatively high proportion of foreign residents, namely 22.8%, which can be largely attributed to its strict naturalization procedure. Itali­ ans make up the largest group of foreign residents, followed by Germans, Portu­ guese, French and Serbian nationals. The overwhelming majority of Switzerland’s foreign residents (85%) are from European countries. Switzerland is not solely a country of immigration – there are currently over 716,000 Swiss nationals living abroad. France hosts by far the largest number of Swiss residents, followed by the US and Germany. 53 A quick Guide to German and Zurich German 54 English German Zurich German Three Drei Drü Hello Guten Tag Grüezi Four Vier Vier Welcome Willkommen Grüezi Five Fünf Foif Good morning Guten Morgen Guäte Morge Six Sechs Sächs Good evening Guten Abend Guäte Abig Seven Sieben Sibä Good night Gute Nacht Guät Nacht Eight Acht Acht Thank you Danke Dankä Nine Neun Nüün Sorry Entschuldigung Äntschuldigung Ten Zehn Zäh Please Bitte Bitte How are you? Wie geht es Ihnen? Wiä gat’s Ihne? Days I am fine Mir geht es gut Mir gat’s guät Monday Montag Mäntig What is your name? Wie heissen Sie? Wiä heissed Sie? Tuesday Dienstag Ziischtig My name is… Ich heisse… Ich heissä… Wednesday Mittwoch Mittwuch Where are you from? Woher kommen Sie? Vo wo chömed Sie? Thursday Donnerstag Dunschtig I am from… Ich komme von… Ich chumä vo… Friday Freitag Friitig What is the time? Wieviel Uhr ist es? Was isch für Ziit? Saturday Samstag Samschtig I understand Ich verstehe Ahaa Sunday Sonntag Sunntig I did not understand Das habe ich nicht Das hani nöd verstande verstanden Directions Please speak slowly Sprechen Sie bitte Chönd Sie ächt es bitzli Right Rechts Rächts langsam langsamer redä? Left Links Linggs Excuse me Entschuldigen Sie Exgüsi Front Vorne Vornä Please write it down Schreiben Sie das Chönd Sie das ächt ufschriebe? Back Hinten Hinä bitte auf Inside Drinnen Dinä How do you say…? Wie sagt man…? Wiä seit mä…? Outside Draussen Dussä ... in German/Swiss German … auf Deutsch/ … uf Düütsch/ North Nördlich Nördlich auf Schweizerdeutsch uf Schwiitzerdütsch East Östlich Öschtlich Help! Hilfe! Hilfe! South Südlich Südlich Stop! Stop! Stop! West Westlich Weschtlich Have you eaten? Haben Sie schon Händ Sie scho gässe? gegessen? Basic colours Where is the toilet? Wo sind die Toiletten? Wo isch’s WC? Black Schwarz Schwarz Congratulations! Gratulation! Gratuliere! White Weiss Wiss Goodbye Auf Wiedersehen Tschüss Green Grün Grüän Blue Blau Blau Numbers Red Rot Rot Gälb One Eins Eis Yellow Gelb Two Zwei Zwei 55 Imprint Photo Credits Concept p. 23/24 Lavaux Vineyard © by Switzerland Tourism, Marcus Gyger Old Town Berne © by Switzerland Tourism The Aetsch Glacier © by Switzerland Tourism Alp Gmuen © by Switzerland Tourism, Stephan Schacher Andrea Schneider General Manager IPhO 2016 Graphic Design and Layout Stephanie Lippert MELS, University of Zurich Editorial Team Andrea Schneider Roman Ernst Richard Staub 56 Proofreading CLS Communication AG Printing House Mattenbach AG © University of Zurich 2016 International Physics Olympiad 2016 www.ipho2016.org info@ipho2016.org p. 30/31 Vaduz Casle © by Martin Walser Government quater © by Roland Korner Fürstensteig © by Liechtenstein Marketing economic area © by Liechtenstein Marketing p. 33 University of Zurich © by University of Zurich University of Zurich, pond at Campus Irchel © by stefanwalter.ch p. 37 Asia Trophy © by Switzerland Tourism p. 46/47 Mount Rigi © by RIGI BAHNEN AG Steamboat © by RIGI BAHNEN AG Derek Muller © by tyleralberti.com p.48/49 Paul Scherrer Institute © by Paul Scherrer Institute, Markus Fischer Inside Paul Scherrer Institute © by Scanderbeg Sauer Photography p.50/51 CMS detector © Public Domain Large Hadron Collider © by CERN, Maximilien Brice Red Cross Museum © by MICR, Alain Germond p. 52 ewz © by Roger Frei, Zurich Tram depot VBZ © by VBZ Corporate Communications 57 Content 58 The IPhO 2016 Logo 02 Welcome Messages 05 People behind the IPhO 201615 Host Country Switzerland20 Best of Swiss Design26 Host Country Liechtenstein28 Host University of Zurich32 10 Swiss Treats34 General Advice36 Top Swiss Food and Liechtenstein’s Käsknöpfle38 Programme42 Programme Highlights44 Switzerland – Four Official Languages53 A Quick Guide to German and Swiss German54 Imprint56 Photo Credits57 Organizers Partners Verband Schweizer Wissenschafts-Olympiaden Association des Olympiades Scientifiques Suisses Associazione delle Olimpiadi Scientifiche Svizzere Association of Swiss Scientific Olympiads Main Partner Supporters: Institutions and Public Sector Swisslos – Kanton Aargau University of Berne Promoting Partner Partners Baugarten Stiftung Supporters: Companies Accor Hotels SA business campaigning GmbH Bruker BioSpin AG EUROBUS welti furrer AG Hoval AG IBM Research GmbH – IBM Research – Zurich Interface Marketing AG Lake Lucerne Navigation Company Mount Rigi Railways SA Sensirion AG SIGG Switzerland AG ZFV Group Supporters: Foundations Gedächtnisstiftung Peter Kaiser Georg H. Endress Foundation Hilti Foundation Karl Mayer Foundation Lotex Foundation Maiores Foundation Polianthes Foundation Prof. Otto Beisheim Foundation RHW Foundation SwissLife Foundation “Perspectives”