Why are orangutans orange?
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A collection of science questions with explanations of the principles behind such phenomena as ripples in glass and "holograms" in ice.
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A collection of science questions with explanations of the principles behind such phenomena as ripples in glass and "holograms" in ice.
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"A collection of science questions with explanations of the principles behind such phenomena as ripples in glass and "holograms" in ice."
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