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The first horizontal-axis windmills (like a pinwheel) appeared in Western Europe
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Natural gas was used in Baltimore to fuel street lamps. During the 19th century, natural gas was used in Europe and in North America as a lighting fuel. Most of the natural gas produced at that time was manufactured from coal and not extracted from the earth, as it is today
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is the production of voltage across a conductor moving through a magnetic field.
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Street lamps in the city of Niagara Falls were powered by hydropower (direct current
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Wilhelm Roentgen, a German physicist, discovered X-rays.
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The first dry steam geothermal power plant was built in Laderello in Tuscany, Italy. The Larderello plant today provides power to about 1 million households.
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Albert Einstein won the 1921 Nobel Prize in Physics for his theories that explained the photoelectric effec
