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On September 30, 1882, the first centrally located electric lighting system using the Edison system in the West and the first hydroelectric central station in the world began operation on the Fox River in Appleton, Wisconsin.
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Charles F. Brush built the first automatically operated wind turbine Cleaveland, Ohio. It was 60 feet tall, and weighed 80,000 pounds.
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Albert Einstein writes to President Franklin D. Roosevelt, telling him the importance of research on nuclear reactions and the possibility that research might lead to developing powerful bombs.
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The gun model uranium bomb, called Little Boy, is dropped on Hiroshima, Japan.
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Thanks to the popularity of cars, oil becomes the most used source of energy.
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World's first nuclear reactor for commercial power is in Shippingport, PA.
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James R. Schlesinger is sworn in as first Secretary of Energy.
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California's geothermal power plants provided 54.9% of the State’s electricity.