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1800s 1898 Nikola Tesla files for radio remote control patents. Eldridge R. Johnson patents first mechanical gramophone. 1897 German scientist Karl Ferdinand Braun constructs the first cathode ray tube scanning device, a technology still in use today in TVs and computer monitors. British physicist Joseph Thomson discovers the electron. 1896 Niagara Falls polyphase AC power plant begins operation. 1895 Guglielmo Marconi sends and receives wireless signals in Italy; Alexander S. Popoff accomplishes the same feat in Russia. 1894 United States Gramophone Company founded in Washington, D.C. 1893 Valdemar Poulson invents the wire recorder, in use until the magnetic tape recorder developed just after World War II. Nikola Tesla describes and demonstrates the basics of radio; later awarded patent supremecy over Marconi. 1891 Nikola Tesla invents the Tesla coil, which produces high volt age at high frequency. 1888 Emile Berliner applies for a patent on the flat phonograph disc. Thomas Edison and William Dickson make a sound "motion picture" with a phonograph synchronized with a Kinetoscope. Heinrich Hertz detects and produces radio waves. Oberlin Smith describes a magnetic sound recording system, a forerunner of the magnetic tape recording system. Nikola Tesla invents first AC induction motor, AC/DC trans former and polyphase AC system. 1887 The first "dry" battery cell, forerunner of the modern battery developed. Emile Berliner patents the gramophone, the first record player.1886 Westinghouse begins operation of first AC power plant at Buffalo, NY. 1884 Paul Nipkow invents a scanning disc for the first mechanical television. 1883 Thomas Edison patents the Edison Effect, which later developed into the vacuum tube by Lee deForest. 1882 Lars Ericsson invents the telephone handset with a combined microphone and earpiece. 1879 Thomas Edison invents incandescent light bulb. 1877 Thomas Edison invents the phonograph. French Poet Charles Cros suggests recording sound on flat disc. 1876 Alexander Graham Bell receives a U.S. patent for the telephone. 1872 Thomas Edison patents an electronic typewriter, the prototype for later teletype machines. 1863 Giovanni Caselli receives a U.S. patent for the fax machine based on Bains ideas called the "pantelegraph." Service between Paris and Lyons, France, operates between 1865 and 1870, but the Franco-Prussian War ends the experiment. 1857 French Scientist Leon Scott de Martinville demonstrates rudimentary sound recording technology using soot-covered paper cylinders. 1844 Samuel F.B.Morse sends the telegraph message "What hath God wrought?" 1840 Alexander Bain proposes a fax machine that uses synchronized pendulums to scan an image at the transmitting end and send electrical impulses to a matching pendulum at the receiving end to reconstruct the image. The device, however, not developed. 1832 Babbage conceives the first computer, the analytical engine, a mechanical calculating machine driven by external instructions akin to modern-day software. He never builds it. 1831 Michael Faraday converts mechanical energy into electrical energy. 1822 Charles Babbage develops the Difference Engine, the first albeit enormous calculator. 1799 Alexandra Volta invents the first battery. 1752 Benjamin Franklin demonstrates lightning is electricity. |
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