Science
What space object did some ancient cultures rely on to tell the passage of time?
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What is energy from the internal heat of the Earth called?
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Ian Shelton, who discovered Supernova 1987A, while observing in Chile, was working for what university?
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Which scientific term is best defined as an electrically charged atom?
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Who discovered the rotating magnetic field that is the basis of Alternating Current?
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In what year did Einstein submit his paper containing the correct field equations of general relativity?
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What inherited syndrome is believed to be part of the make up of many serial killers?
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