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Homework Help: Magnet Wheel

  1. Jul 13, 2007 #1
    Here is a little animation of an idea I have, It's a wheel that spins continuously and is powered by magnets.

    Here's the link : http://www.youtube.com/watch?v=uNBVQBVOJMw"

    The description of the video will explain my idea.

    Please tell if this would work in real life.
    Last edited by a moderator: Apr 22, 2017
  2. jcsd
  3. Jul 13, 2007 #2


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    Gold Member

    Thread lock imminent.
  4. Jul 13, 2007 #3


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    Staff: Mentor

    The animation doesn't show anything about how it is supposed to work, but be advised that magnetic perpetual motion machines occupy an entire class of unworkable devices: http://www.lhup.edu/~dsimanek/museum/unwork.htm#cheng

    Rest assured, if you choose to pursue designing such devices, you will waste your entire life on the pursuit and never have anything to show for it.

    If you like, we can help you understand why such things do not work, but please be advised that we don't support crackpottery here and will not help you attempt to design one and will only allow the discussion to continue if you are honestly trying to learn about why this isn't a good idea. We will not aid in the design of perpetual motion machines.
  5. Jul 13, 2007 #4


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    Haven't really thought it over, but intuitively I'd say that it would wiggle a bit between two magnets, and then stop.

    But even if it works theoretically, you'd have to do with friction and the like, so I doubt it would run for long.

    It looks cool for a desktop gadget though (you know, those rings that keep turning, or the bird that keeps sipping fluid).
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