/u/SnailHunter's posts in /r/askscience
I've heard that people today are taller than people were a few hundred years ago. Why is this and is it a form of evolution?
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Would the average in-shape adult benefit more from 30 minutes of moderate cardio every day, or would it be better if they took a day or two off each week?
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Would the average in-shape adult benefit more from 30 minutes of moderate cardio every day, or would it be better if they took a day or two off each week?
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Do the events in the brain that lead to physical movement and/or thoughts occur on big enough scales as to not be affected by quantum indeterminism? If so, wouldn't this imply that the brain is effectively deterministic?
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Is it possible to shift all of the frequencies up or down in a given signal losslessly? If so, how is this accomplished?
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Since accelerating is equivalent to being in a gravitation field, would a clock at the edge of a rotating disk experience gravitational time dilation?
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Is there any theoretical way to harness mechanical energy from dark energy? If so, wouldn't this give us a never-ending energy supply (since when space expands, more dark energy comes into existence)?
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