Workshop Technology Assignment Q1. Briefly explain the four (4) stages of development in technology. i. ii. iii. iv. The Stone Age- The stone age was a broad prehistoric period during which stone was widely used to make stone tools with an edge, a point or a percussion surface. The period lasted for roughly 3.4 million years, and ended between 4,000 BC and 2,000 BC, with the advent of metalworking. The Bronze Age- The bronze age is a prehistoric period , lasting approximately from 3500 BC to 1200 BC, characterized by the use of bronze, the presence of writing in some areas, and other early features of urban civilization. Bronze is harder and more durable than the other metals available at the time, allowing the Bronze Age civilizations to gain a technological advantage. The Iron Age- The iron age was a period in human history that started between 1200 B.C. and 600 B.C. , depending on the region and, followed the stone age and bronze age. During the iron age, people across much of Europe, Asia, and parts of Africa began making tools and weapons from iron and steel. The Machine Age- the machine age is an era that includes the early-to-mid 20th century, sometimes also including the late 19th century. An approximate dating would be about 1880 to 1945. Considered to be at its peak in the first and second world wars, new machinery was created and production increased that time. Figure 1.1: technology timeline from stone age to present. Q2. List some development (machines) that came into use in each stage. Stone Age Axe, spear, scraper, flint, bow and arrow, flake tool, knife, chisel, Bronze Age Spear, axe, sword, dagger, bow and arrow, shields and amour, wooden clubs and mallets, buckets, wheel Iron Age Cast iron, quenching, steel weapons, coins, rotary quern stone, shovel, hoe Machine Age Slide rest lathe, screw-cutting lathe, milling machine, pattern tracing lathe, turret lathe, metal planer Q3. List three (3) types of lathes, milling, drilling and grinding machines that can be found in the industries today. Lathe Machine i. Center lathe or Engine lathe machine ii. Special purpose lathe machine iii. CNC lathe machine Drilling Machine i. CNC drilling machine ii. Multiple drilling machine iii. Turret-type drilling machine Milling Machine i. Horizontal milling machine ii. Turret milling machine iii. Bed-type milling machine Grinding Machine i. Bench grinding machine ii. Surface grinding machine iii. Angle grinding machine