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Volta used his knowledge of electricity to build the first electric batteries.
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Whitney developed the cotton gin, which tore fibers from cotton seeds and sped up the process of cleaning cotton fibers. The cotton gin made it possible for a single slave to produce as much raw cotton as 50 slaves had previously been able to produce.
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Daimler built an internal combustion engine that was fueled by gasoline and could power a small vehicle. This engine was used to build one of the first automobiles and later was developed into a combustion engine that could power larger vehicles.
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Thomas Edison invented the phonograph and incandescent light bulb, and designed an electric generating plant that powered New York City.
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Bell invented the telephone in 1866
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Ford created invented the automobile and owned and automobile factory in Highland Park, Michigan.
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Gugliemlo Marconi developed a method to send electric signals without wire or cable.
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Orville Wright invented the first flying machine with his brother Wilbur. The flight was erratic and only lasted 12 seconds, but it was the first time in which a flying machine had carried a man in full flight.