Science: Inventions, Ideas, and Scientists that Shaped the ...
Thomas Alva Edison was one of the most famous and prolific inventors of all time, responsible for such innovations as the incandescent light bulb, the phonograph, and the motion picture as well as improving the telegraph and telephone. In his 84 years, he acquired an astounding 1,093 patents, an average of a week over the life of his career. ................
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