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The Information about Some Great Inventions
Invention | Wheel | Telephone | Light bulb (灯泡) | Paper |
Appearing Time | A few thousand years ago | In 1876 | In 1879 | Around 2, 000 years ago |
Inventor | Unknown | Alexander Bell | Thomas Edison | Cai Lun |
Inventor's Nationality | Unknown | American | American | Chinese |
Early Main Material | Wood | Plastic and metal | Glass and metal | Cotton or flax(亚麻) |
Main Use | Making travelling faster | Used for communicating over distances (距离) | Giving light | Used for recording information |