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Re:A Room-Temperature Superconductor? New Developments by kijin on Tuesday August 01, 2023 @01:18PM (#36959103)
It certainly doesn't hurt that this thing levitates.

No need to squint into a microscope, parse a screen full of numbers, or try to make sense of false-color renderings. Either you have video proof of a levitating object, or you don't. The demonstration is as intuitive as it gets, despite the fact that the theory is crazy difficult to wrap one's head around.

Re:A Room-Temperature Superconductor? New Developments by itsarnavb on Tuesday August 01, 2023 @01:48PM (#36959611)
And the techniques to produce the material are not too crazy, all within reach of sufficiently dedicated amateurs
Re:A Room-Temperature Superconductor? New Developments by dclowd9901 on Tuesday August 01, 2023 @02:05PM (#36959887)
Levitates? Against, what, the earth's inherent magnetic field? Sorry, I haven't seen any visuals that show this behavior.
Re:A Room-Temperature Superconductor? New Developments by marshray on Tuesday August 01, 2023 @02:35PM (#36960375)
Over a handheld neodymium magnet.

None of the videos have yet shown complete 'levitation', they all have a corner on the surface. But still, not behavior that anyone has ever seen from lead before.

Re:A Room-Temperature Superconductor? New Developments by rvnx on Tuesday August 01, 2023 @02:50PM (#36960607)
But couldn't it just be a magnet ? I don't understand how it's a proof. You can already do what is in the video (and even better), with for example, pyrolitic carbon ? https://en.wikipedia.org/wiki/Pyrolytic_carbon
Re:A Room-Temperature Superconductor? New Developments by aeneasmackenzie on Tuesday August 01, 2023 @03:01PM (#36960841)
It’s not proof, but if it wasn’t even diamagnetic it would be over. It couldn't just be a magnet, it is repelled from both ends of a normal magnet, according to Chinese lab videos you can find in the thread.
Re:A Room-Temperature Superconductor? New Developments by marshray on Tuesday August 01, 2023 @05:03PM (#36962863)
Lead weighs a lot more than pyrolytic carbon.
Re:A Room-Temperature Superconductor? New Developments by zarzavat on Tuesday August 01, 2023 @08:54PM (#36965510)
Have you seen videos of pyrolytic carbon? A thin sliver of it barely hovers on top of a huge magnet. It doesn’t stand erect. Same effect as LK99 but much smaller magnitude.
Re:A Room-Temperature Superconductor? New Developments by zbobet2012 on Wednesday August 02, 2023 @02:11AM (#36967555)
Re:A Room-Temperature Superconductor? New Developments by failuser on Tuesday August 01, 2023 @02:56PM (#36960721)
Levitation in magnetic itself is not the proof. Frogs can do that too, ask Geim. The proof would be levitation in any orientation.
Re:A Room-Temperature Superconductor? New Developments by _0ffh on Tuesday August 01, 2023 @03:27PM (#36961292)
> Frogs can do that too

One even did that on the cover of Nature, iirc.

Re:A Room-Temperature Superconductor? New Developments by andersa on Tuesday August 01, 2023 @04:08PM (#36961932)
When do we start building things out of superconducting frogs?
Re:A Room-Temperature Superconductor? New Developments by jacquesm on Tuesday August 01, 2023 @04:55PM (#36962741)
Using a 'slightly' stronger magnetic field...
Re:A Room-Temperature Superconductor? New Developments by zbobet2012 on Wednesday August 02, 2023 @02:15AM (#36967582)
Only over an electromagnet, not a fixed one (to our knowledge). Digmagnetic levitation requires more than one magnet or an electromagnet.

https://en.m.wikipedia.org/wiki/Magnetic_levitation