1. Edison, Thomas Alva - 1847-1931, American inventor, b. Milan, Ohio. A genius in the practical application of scientific principles, Edison was one of the greatest and most productive inventors of his time, but his formal schooling was limited to three months in Port Huron, Mich., in 1854. For several years he was a newsboy on the Grand Trunk RR, and it was during this period that he began to suffer from deafness, which was to increase throughout his life. He later worked as a telegraph operator in various cities. Edison's first inventions were the transmitter and receiver for the automatic telegraph.

2. Bell, Alexander Graham - 1847-1922, American scientist, inventor of the telephone, b. Edinburgh, Scotland, educated at the Univ. of Edinburgh and University College, London; son of Alexander Melville Bell. He worked in London with his father, whose system of visible speech he used in teaching the deaf to talk. In 1870 he went to Canada, and in 1871 he lectured, chiefly to......

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Title: World Studies Definitions
Approximate Word Count: 8322
Approximate Pages: 34 (250 words per double-spaced page)

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