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A comment on LK-99 isn’t a superconductor – how science sleuths solved the mystery. Parent comment

Re:LK-99 isn’t a superconductor – how science sleuths solved... by dheera on Wednesday August 16, 2023 @02:42PM (#37151707)
Diamagnetic levitation is extremely weak, which makes it much less practically useful, and also reduces its entertainment value (if you can levitate things 2 cm above the surface the 2 billion children in the world will be all over the stuff; the 1-2 mm you can get with bismuth diamagnetism isn't particularly impressive.
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Re:LK-99 isn’t a superconductor – how science sleuths solved... by hgsgm on Wednesday August 16, 2023 @03:21PM (#37152256)
I don't know all these subtleties, but maglev trains are awesome.
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Re:LK-99 isn’t a superconductor – how science sleuths solved... by kergonath on Wednesday August 16, 2023 @05:02PM (#37153791)
Maglev trains do not use diamagnetism or this kind of permanent magnets. They use electromagnets and sometimes much stronger rare-earth magnets, which are much more convenient and effective. Some of them do use superconductors, though, AFAIK.
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