this video sent by one of the original authors to the NY Times is the most significant peace of evidence to me: https://vp.nyt.com/video/2023/08/03/110377_1_03superconducto...
What I don't get is why they don't just pulverize the sample, put it in a magnetic field, and then sift out the floaty particles.
Things floating at an angle and halfway make me very suspicious.
Also, why are all these videos like 5 seconds long? The stuff is supposedly superconducting at room temperature and would supposedly float indefinitely. Why not just put up a 24/7 livestream, do stuff like pass strings/paper/loops/etc around it.
I think this material is very interesting, but all the videos I see are so clownish that I am getting more skeptical as time goes on.
TL;DR: Normal magnets have two poles, and will try to flip themselves around to achieve a lower energy state. You cannot levitate a normal magnet on another magnet without mechanical stabilization. Superconducting materials actively repel all magnetic field lines and can achieve levitation without external stabilization.
Technically it can be done with an array of magnets with opposing polarities.
Without more details from on this video's source and legitimacy, one could argue that an array of magnets is hiding under the 'single magnet' cover plate.
I am not saying this is a hoax, but as exciting as this seems we just have to wait it out for more replication publications to make that call.
How?
[0] https://en.wikipedia.org/wiki/Diamagnetism#/media/File:Diama...
To which I added:
"I am not saying this is a hoax, but as exciting as this seems we just have to wait it out for more replication publications to make that call"
It has been a little over 2 weeks since the first pre-print from Korea University.
The hashing out of a fabrication process with less impurities will be a long process. My point is not that everyone is pulling a con, my point is that we need to wait it out.
The mechanical stabilisation is right there in plain sight where one side of the magnet is clearly resting on the other magnet (physically in contact). Anyone who’s played around with magnets that are heavy and too weak to flip themselves around will not be satisfied with this video. It could be explained by two South Poles opposing each other.