Science
What is another name for a "shadow clock"?
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What scientist first showed that a changing electric field produces a magnetic field?
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What specifically is a bezoar called those results from persimmon ingestion?
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What is the name of an instrument that records vibrations in the Earth's crust?
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What scientist is credited with developing the first vaccine?
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Plato thought the Lost Island of Atlantis was linked to which ancient culture?
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How many Earth years does it take Mars to go around the Sun?
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