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Why does every thing spin?
So why would the Earth, or any planet for that matter, rotate
along an axis? I know of no force which could come into play here,
so i assume it just started off with an initial rotation. But where
did this rotational energy come from? And are there any known
planets which do not rotate?
Assuming no force accounts for earth's rotation, would it be
true that the angular velocity of the earth...