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Perpetual motion machine

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Oodain
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18 Sep 2011, 12:31 pm

true yet there is always a miniscule drag of gravity and i suspect a lot of other factors, space is never a complete vacuum for one, in idealized systems perpetual movement is possible.


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cw10
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19 Sep 2011, 3:56 am

There's an inherent roughness to the universe. Even in the most harmonious systems there's a tiny bit of roughness that causes drag. Ideal and theoretical systems must incorporate this into the equation or else it's meaningless.