the first electric cell photocopier 1800 1903

laser Kodak camera 1828 1960

telescope telegraph 1608 1837

typewriter tyres 1888 1860

Lego bricks trainers 1955 1980

frozen food canned food 1914 1809

steam engine diesel 1765 1892

digital stereo sound system video cassette tape recorder 1975 1990

match dynamite 1827 1867

instant coffee hamburger 1954 1937

colour TV helicopter 1939 1928

1. a camera is for a) waking up people 2. a telephone b) cooking food 3. a typewriter c) washing dishes 4. a calculator d) taking photographs 5. a talking alarm clock e) receiving and making calls 6. a dishwasher f) carrying calculations 7. a microwave oven g) typing information