4 ms·

https://www.youtube.com/watch?v=EtVjGWpbE7k https://www.youtube.com/watch?v=EtVjGWpbE7k This is an unlisted video of the LK-99 film (purportedly)

cududa 3y ago
I need someone to burst my bubble, this is too exciting
- stronglikedan 3y ago
  I can't deboonk it from what I can see. It would be interesting if it zoomed out to show the environment this was occurring in.
- marcosdumay 3y ago
  Expect the first iterations of that material to not actually hold currents well in a long (macroscopic) distance and create much weaker magnets than one would expect from a random superconductor. But it's also a surprise for theoreticians, and I guess the mechanism is very prone to improvement.
deleted 3y ago
[deleted]
lilgreenland 3y ago
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
skunkworker 3y ago
Here is another video https://sciencecast.org/casts/suc384jly50n https://sciencecast.org/casts/suc384jly50n
PBnFlash 3y ago
That is profoundly unconvincing.
fallingfrog 3y ago
Not very convincing, copper does that anyway..

cududa 3y ago

I need someone to burst my bubble, this is too exciting

stronglikedan 3y ago
I can't deboonk it from what I can see. It would be interesting if it zoomed out to show the environment this was occurring in.
marcosdumay 3y ago
Expect the first iterations of that material to not actually hold currents well in a long (macroscopic) distance and create much weaker magnets than one would expect from a random superconductor. But it's also a surprise for theoreticians, and I guess the mechanism is very prone to improvement.

deleted 3y ago

[deleted]

lilgreenland 3y ago

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

skunkworker 3y ago

Here is another video https://sciencecast.org/casts/suc384jly50n https://sciencecast.org/casts/suc384jly50n

PBnFlash 3y ago

That is profoundly unconvincing.

fallingfrog 3y ago

Not very convincing, copper does that anyway..