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    Help with Conservation of Energy Principle

    Doesnt gravity's force on the earth account for the heat emitted from the earth's core? The pressure on the iron raises its temperature as I understand it. I know Blackbody radiation converts the iron's mass slowly into energy, but I heard that Blackbody radiation is slowly emitted only at...
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    Entropy and the second law of thermodynamics

    You can 'reverse' entropy by doing work, intellegent work at least. For example, if you have a pile of bricks in a truck, all nice and neat, and the bricks fall off, it goes to a state of high entropy. But what if the truck stops and the driver piles the bricks back into the truck? He did...
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