Comment on The box that Doom comes in will play Doom

tigeruppercut@lemmy.zip ⁨3⁩ ⁨months⁩ ago

• papalonian@lemmy.world ⁨3⁩ ⁨months⁩ ago

  It is done entirely with magnets.

  There’s a few ways it can be arranged, but typically, there will be a large, powerful magnet in the base, a small magnet at the bottom of the floating object that is attracted to the big magnet (to keep the object upright), and a series of other magnets around the object that are repelled by the big magnet (to make it float).

  I’ve seen some that use a secondary “key” magnet on the base and object that is the opposite polarity of the base magnet, that forces the object to sit in a specific orientation. Otherwise, the object can just kind of freely spin/float, so long as the bottom magnet stays pointing down.

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  • tigeruppercut@lemmy.zip ⁨3⁩ ⁨months⁩ ago

    That sounds cool af and difficult to get a system in balance like that. Do you know of any videos anywhere where someone has magnets like that set up?

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    • papalonian@lemmy.world ⁨3⁩ ⁨months⁩ ago

      I don’t know of any videos, but the concept seems to have gotten pretty popular in the last year or two. I’m in the 3D printing community, and there’s pretty frequently a “magic floating <whatever>” in the “popular” section.

      I assume the most difficult part would be determining what size magnets to use to achieve the desired float height. The rest should (in theory) be relatively simple; the magnets’ natural characteristics do all the hard work.

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• Zoot@reddthat.com ⁨3⁩ ⁨months⁩ ago

  They’ve clearly manufactored a room temperature Superconductor just to have a floating demon on a magnet. Almost makes it worth the $666 price tag

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• kamenlady@lemmy.world ⁨3⁩ ⁨months⁩ ago

  Image

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• ocean@lemmy.selfhostcat.com ⁨3⁩ ⁨months⁩ ago

  Magnets…

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  • alt_xa_23@lemmy.world ⁨3⁩ ⁨months⁩ ago

    How do they work?

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    • ocean@lemmy.selfhostcat.com ⁨3⁩ ⁨months⁩ ago

      Some push that way, others push the other way, object go up, thingy go down (gravity).

      In my experience these things are stupid hard to balance on the magnets in mid air

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