4 ms·

hm? "superconductors that levitate over magnets" == type-II, type-II can be spun and held upside-down.

• calibas 3y ago
  Yes, and I though the claim was that LK-99 was a type-I superconductor.
  • nullc 3y ago
    Ah. I wasn't aware that people were claiming that-- I guess it was an effort to explain why there was apparent diamagnetism but no clear demonstrations of flux pinning.