4 ms·

Isn't this how copper already works without superconductivity? https://www.youtube.com/watch?v=sENgdSF8ppA https://www.youtube.com/watch?v=sENgdSF8ppA

• sudosysgen 3y ago
  Only temporarily. After a fraction of a second the dampening isn't strong enough anymore to prevent the two from entering into contact.
  • lilgreenland 3y ago
    And I think that's what we are seeing in the video. The eddy current effect isn't permanent like in superconductivity. They have to keep moving the magnet around.
    • sudosysgen 3y ago
      Ah, that's not the video I saw. I was referring to this one : https://sciencecast.org/casts/suc384jly50n https://sciencecast.org/casts/suc384jly50n
      • lilgreenland 3y ago
        well that one looks great. Maybe in the original video a superconductive effect was there, but not strong enough to frame lock. But you can see it in the newer video.
        • achr2 3y ago
          The new video doesn't show anything convincing either - Pyrolytic graphite behaves the same way at room temps due to strong diamagnetism.
          • lilgreenland 3y ago
            hmmm. This is what you are talking about. https://youtu.be/TlD12QObooc?t=420 https://youtu.be/TlD12QObooc?t=420