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  The steam engine changed the way of transportation and created a way to generate power which could be used by a machine.
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  The first battery maintained a steady current but was not the first to form electricity.
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  The electrical telegraph sent electric signals across a wire as a way to communicate to the receiver on the other end.
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  The first successful oil well was dug around Oil Creek in Pennsylvania by Edwin Drake.
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  More than 3,000 designs of the bulb were tested before the first bulb was successful. The bulb was a patent for an electric lamp filled with carbon filament.
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  The world's first hydroelectric power plant is located on the Fox River in Appleton, Wisconsin. This created an alternative way to create energy.
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  Charles F. Brush invented the first electricity-generating wind turbine in 1888. The turbine was around 50 ft. and generated 12 kW of power.
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  It was built on the fourth of July in Larderello, Italy. The generator successfully lit four light bulbs.
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  Hans Bathe discovered the possibility of nuclear fusion being an energy source for the sun. Later on researchers are finding ways to control fusion reactions to produce energy.
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  This cells was a electrical device that had a function of absorbing sunlight and converting it to usable energy.