Science
Which of these objects is an example of a simple machine?
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What inherited syndrome is believed to be part of the make up of many serial killers?
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What satellite series was known as "fellow traveler"?
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What graced the left shoulder of an Apollo astronaut's training suit?
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What is the potential energy in the nucleus of an atom called?
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What is the name of an instrument that records vibrations in the Earth's crust?
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What university did astronomy and space science theorist Carl Sagan teach at?
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