A unique and fascinating introduction to the amazing variety of inventions, both ancient and modern. From simple machines such as wheels, gears, pulleys, and levers, Eyewitness Invention charts the developments of weights and measures, writing implements, early timepieces, and navigation aids. The microscope and telescope are featured, as well as a model windmill and an internal combustion engine sliced through to show the mechanism inside. Finally, there are the inventions that have revolutionized the modern era - from telephones and radios to television and plastics. See the first food mixer, what Galileo's telescope looked like, and the earliest photographs. Learn how the first records were made and how operations were performed in the 19th century. Discover what makes a clock tick, how early airplanes flew, why a battery produces electricity, and much, much more!
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17th century abacus acid ancient Egyptians axle balance battery beads beam began blade bow drill bronze bulb calculating called candle cast cathode ray tube cathode rays cell century a.d. chemicals China Chinese Christian Huygens clock coated color copper created cylinder daguerreotype daguerreotype camera developed device dial diaphragm disks early earpiece Edison electric current electrode Electron tubes Europe film fire flint gear glass Greek scientist hammered handle heat holes images invented iron ivory lantern LANTERN CLOCK later lens lenses light machines measure mechanical mill movable type moving NAPIER'S BONES needles numbers object Pattern welding piston plastic printing produced pump radio waves record rods Roman rotated screen shaft shape silicon chip simple spinning steam engine stick stone stylus tape telephone telescope Thomas Edison Thomas Savery Thomas Tompion thread transmitted vibrations voltage wheel WILHELM ROENTGEN wire wood wooden zinc