Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor, scientist, and businessman who developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb.
Ref.: http://en.wikipedia.org/wiki/Thomas_Edison
Source: Google
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Friday, February 11, 2011
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