InventionFull-color photos. The evolution of human civilization is traced through the tools people have devised to shape and improve the world--from the simple abacus to timekeeping items, telephones, and complex silicon chips. |
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17th century abacus acid ancient Egyptians axle battery beads beam blade BOOKS DORLING KINDERSLEY bow drill bronze bulb calculating called candle cathode ray tube cathode rays cell century A.D. China Chinese Christian Huygens clock coated color copper created cylinder daguerreotype developed device dial disks DORLING KINDERSLEY EYEWITNESS early earpiece Edison electric current electrode Electron tubes Europe EYEWITNESS BOOKS DORLING film flint gear glass Greek scientist hammered heat holes images internal combustion engine invented ivory KINDERSLEY EYEWITNESS BOOKS lantern Later lens lenses light machines measure mechanical metal mill mold Mouthpiece moving needles numbers object photographic piston plastic plates printed produced pump radio waves record rods Roman rotated screen shaft shape silicon chip simple sounds spinning steam engine stick stone stylus tape telephone telescope television Thomas Edison thread transmitted turned valve voltage wheel WILHELM ROENTGEN wire wood wooden handle zinc