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17 April, 13:52

What was a major invention of Thomas Edison

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  1. 17 April, 14:21
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    Thomas Edison is credited with inventions of the first practical incandescent light bulb and the phonograph.

    Explanation:

    In 1877, Edison developed a method for recording sound that is the phonograph. His innovation relied upon tin-coated cylinders with two needles: one for recording sound, and another for playback.
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