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Unit 3 Inventors and inventions Warming up: In groups, discuss the inventions you know and then make a list. Warming upI (4m) Do you know what these inventions are and when did they happen? Telephone 1876 television 1923 colour television 1940 photocopier 1937 air conditioner 1902 electronic digital puter 1942 Atomic bomb 1945 Credit cards 1950 Penicillin 1928 Among the inventions above, which invention do you think is the most important one? Why? Warming up – II (2m) What is an invention? An Invention is something that is created by a human being. Inventing is a scientific activity. Warming upIII (2m) What is a discovery? A discovery merely makes known something that already existed in nature. Look at the pictures below and discuss in pairs which pictures show inventions and which show discoveries. Prereading – I (4m) An amphibious car(2020) This is the first car that can travel safely on water and on land. When moving on water, the wheels of the car turn sideways and move into the body. The underneath of the car is strong enough to sail as a boat. It is a prototype and is not yet being produced for sale. This is an interesting modern invention. Stephenson’s “Rocket” (17811848) Gee Stephenson was one of the first men to design engines for the railways which were new at that time. One of the first tracks to be laid was between Stockton and Darlington. Stephenson was one of the first railway engineers and in 1825 he drove the first train along the line. The structure of DNA This was a