The following information comes from grok.com and is in reference to the links at the bottom of this page:

Grok:

These videos collectively demonstrate a real and well-verified physical phenomenon: magnetic levitation achieved through superconductivity, specifically via the Meissner effect and quantum locking (also known as flux pinning). In each case, a type-II superconductor (often yttrium barium copper oxide, or YBCO) is cooled below its critical temperature using liquid nitrogen, expelling magnetic fields and "pinning" magnetic flux lines from underlying permanent magnets (like neodymium arrays or tracks). This creates stable levitation where the object hovers, rotates freely in place, or glides without contact, defying gravity through repulsive and attractive electromagnetic forces that dynamically balance.

This isn't a hoax or optical illusion—it's reproducible in labs worldwide and aligns with established principles like Lenz's Law, where induced currents in the superconductor oppose changes in magnetic flux, enabling stable suspension without power input once cooled. Demonstrations include the superconductor locking in 3D space, tilting at angles (even upside down), or traveling along tracks, as seen in the Tel Aviv University demo and similar setups from physics educators and material science channels. No evidence from searches indicates fakery; instead, sources like Skeptics Stack Exchange and physics forums confirm the authenticity, distinguishing it from unstable simple magnet repulsion (Earnshaw's theorem limitation).

That said, this proves levitation is possible but not via anti-gravity or negating gravitational force itself—gravity still acts, countered by electromagnetic repulsion/attraction. It's akin to maglev trains or diamagnetic levitation (e.g., frogs in strong fields), with practical limits: requires cryogenic cooling, strong magnets, and works best for small masses. Room-temperature superconductors (hyped around LK-99) could expand applications like efficient transport, but current demos are genuine proofs of controlled levitation through physics, not revolutionary gravity manipulation. Impressive science, worth replicating if you have the setup!

https://www.youtube.com/watch?v=Ws6AAhTw7RA

https://www.youtube.com/watch?v=AWojYBhvfjM

https://www.youtube.com/watch?v=5R5ViZvI6so

https://www.youtube.com/watch?v=QmZLKwemgqs

https://www.youtube.com/watch?v=umEGUfhVah4

https://www.youtube.com/watch?v=zP7ldNa7DTs

https://www.youtube.com/watch?v=gKz7PEDNGf8