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A steam engine is a heat engine that performs mechanical work using steam as its working fluid. It was invented by Thomas Savery.
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Benjamin Franklin proved that lightening was electricity.
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Luigi Galvani discovered bioelectricity which has to do with the electric current generated by living tissue.
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The first battery was created by Alessandro Volta in 1800.
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The first city in the country to light street lights by using gas made from coal.
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The first successful lightbulb was created by Thomas Jefferson.
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Alexander Graham Bell created the photophone which was the world's very first wireless phone.
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The first hydroelectric dam began right here in the United States.
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The first automobile was produced by Henry Ford.
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Albert Einstien crated the foundations for the laser.