Thomas_Edison_Time_Line

Thomas Edison Time Line 1868 * Invented the electrical vote recorder. 1869 * Invented the universal stock ticker and the unison stop. 1872 * Invented the motograph. * Invented the automatic telegraph system. * Invented duplex, quadruplex, sextuplex, and multiplex telegraph systems. * Invented paraffin paper. * Invented the carbon rheostat. 1875 * Discovered "Etheric Force," an electric phenomenon that is the foundation of wireless telegraphy. 1876 * Invented the electric pen used for the first mimeographs. 1877 * Invented the carbon telephone transmitter, making telephony commercially practical. This included the microphone used in radio. 1877 * Invented the phonograph. This was Edison's favorite invention. He sponsored the Edison Phonograph Polka to help popularize the new device. 1879 * Discovered incandescent light. * Radically improved dynamos and generators. * Discovered a system of distribution, regulation, and measurement of electric current-switches, fuses, sockets, and meters. 1880 * Invented the magnetic ore separator. thomas, edison, invented, discovered, electric, telegraph, system, rubber, edison, wireless, war, systems, phonograph, lamp, carbon, 1880, 1877, work, word, vulcanized, transmitter, trains, telephony, telephone, telegraphy, synthetic, strain, storage, stations, sponsored, special, source, sockets, similar, ship-to-shore, sextuplex, served, separator