/u/fromRonnie's posts in /r/askscience
Does broadcasting in multiple frequencies take more power, and if so, is it X number of frequencies take X amount of power?
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How much space/acreage of plants does it take, on average, to be in equilibrium with the oxygen needs of a human (and carbon dioxide exhaled)?
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I understand lifting 6 pounds on the moon is equal to lifting 1 pound on Earth, what is equal to 1 pound when there is no gravity (or the gravity in all directions balances out)?
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It seems that putting mirrors around solar panels don't make the more (cost) effective/efficient, or it would be done. Why doesn't that work?
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