Science
What electronic device only allows current to flow in one direction?
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If you're talking about electricity, what does "DC" stand for?
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About how long does it take for sunlight to reach the Earth from the Sun?
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In what year did Albert Einstein win the Nobel Prize for physics?
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On which college campus would you find the Hatter Planetarium?
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Which of these is the formula to convert Fahrenheit to Celsius?
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What would you call a statement of expected future occurrences?
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About how many days does it take for the moon to pass through all phases?
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