Thomas Alva Edison, February 11, 1847 - October 18, 1931, was an American inventor and businessman. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and early versions of the electric light bulb, have had a widespread impact on the modern industrialized world. In this recording, Edison discusses some of his numerous inventions.
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