Science
What Swedish physicist and astronomer influenced the foundation for the light spectrum analysis?
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Where is the observatory where Percival Lowell first theorized the existence of Pluto?
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The definition of "a physical unit of storage on a computer disk or tape" best fits which science term?
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Which insect is the closest relative to the grasshopper?
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John Glenn was the first American to orbit the earth, in how long a flight?
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What kind of electromagnetic radiation arises only from nuclear excitations?
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