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Anchorxiety@reddthat.com to No Stupid Questions@lemmy.world · 5 days ago

If something could rotate infinitely after being initially pushed, would the initial push disqualify it from being classed as perpetual motion?

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If something could rotate infinitely after being initially pushed, would the initial push disqualify it from being classed as perpetual motion?

Anchorxiety@reddthat.com to No Stupid Questions@lemmy.world · 5 days ago
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  • bufalo1973@piefed.social
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    2 days ago

    If you think about it, when the universe cools down, maybe some rocks will fly forever without hitting anything.

    • nomad@infosec.pub
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      1 day ago

      A cooled down universe does not move at all AFAIK. please Look up Brownian motion.

      • bufalo1973@piefed.social
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        1 day ago

        If a rock is moving between galaxies, what would make it stop?

        • nomad@infosec.pub
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          2 hours ago

          Does a given mass ever get outside the influence of both galaxy’s gravity influences?

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