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LK-99 crystal verified to be magnetically levitated (with video)

t.bilibili.com

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Re: LK-99 crystal verified to be magnetically levitated (with video)

#11

Post by King-Aaron »

dreamingincode wrote: post #10
King-Aaron wrote: post #8

The video stopped very shortly into it for me and prompted some chinese message on the screen, just before he inserted the magnet. Has anyone got a rehosted link to the video that is less likely to get me on some kind of list? It would be fascinating if this was legitimate.

It's a login prompt and you can close it to keep watching. But as linked in another comment, this link may be easier for non-Chinese viewers: https://targum.video/v/2023/8/1/e2ad3b8e86961ccfdcf411d2d4d1...

Thanks for that. I feel this video isn't particularly good after watching it. Surely that could be any ferrous material thats interacting with the field/inductive eddies there.

Re: LK-99 crystal verified to be magnetically levitated (with video)

#12

Post by marcyb5st »

Kelteseth wrote: post #3

Can someone please explain if this is enough to prove the existence? What additional test would need to be run to be absolutely sure?

If I remember my physics classes properly, it does not. The video shows that the sample is at least paramagnetic[1], but it could also be a superconductor of type 1. I think a better test would be to see if the sample gets quantum locked [2] in the presence of a magnetic field. From [2]:

>Superconductors have one “card” in their sleeves – the ability to transfer currents without resistance. These supercurrents produce a magnetic field that interacts with the external field and are the source of the levitation and suspension forces.

If that would happen, we would definitely know this is a superconductor of type 2. If, instead, is a type 1 what we saw in the video could be just due to repulsion due to the Meissner effect [3] and having an heterogenous sample (i.e. one part is repelled more compared to the other one which points towards the magnet).

[1] https://www.britannica.com/science/rock-geology/Basic-types-... [2] https://quantumlevitation.com/what-is-superconducting-levita... [3] https://en.wikipedia.org/wiki/Meissner_effect

Re: LK-99 crystal verified to be magnetically levitated (with video)

#14

Post by computerdork »

marcyb5st wrote: post #12
Kelteseth wrote: post #3

Can someone please explain if this is enough to prove the existence? What additional test would need to be run to be absolutely sure?

If I remember my physics classes properly, it does not. The video shows that the sample is at least paramagnetic[1], but it could also be a superconductor of type 1. I think a better test would be to see if the sample gets quantum locked [2] in the presence of a magnetic field. From [2]: > Superconductors have one “card” in their sleeves – the ability to transfer currents without resistance. These supercurrents produ…

Am not very knowledgeable about physics and have only looked up the related concepts (so take what I say with a huge grain of salt), but doesn't the video show that it is more than paramagnetic? Because the person takes the magnet and changes its orientation, and the sample still levitates (meaning there is a good case for it being a perfectly diamagnetic?).

Again, am a just a laymen.

Re: LK-99 crystal verified to be magnetically levitated (with video)

#15

Post by lucubratory »

King-Aaron wrote: post #11
dreamingincode wrote: post #10

Earlier quoted context omitted.

It's a login prompt and you can close it to keep watching. But as linked in another comment, this link may be easier for non-Chinese viewers: https://targum.video/v/2023/8/1/e2ad3b8e86961ccfdcf411d2d4d1...

Thanks for that. I feel this video isn't particularly good after watching it. Surely that could be any ferrous material thats interacting with the field/inductive eddies there.

It isn't physically possible for a ferrous material to levitate above a magnet like that, when the magnetic poles are reversed. Basically you could structure it in such a way to generate a ferrous material levitating above a magnetic north pole, but flip the magnet around and you won't see the levitation. They flip the magnet around in this video.
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