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> By contrast, superconductors that levitate over magnets can be spun and even held upside-down. “None of those behaviors look like what we see in the LK-99 vid

> By contrast, superconductors that levitate over magnets can be spun and even held upside-down. “None of those behaviors look like what we see in the LK-99 videos,” van Gennep says. Aren't they confusing Type-I and Type-II superconductors?

nullc 3y ago
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.