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A comment on LK-99 isn’t a superconductor – how science sleuths solved the mystery. Parent comment
When I was young, I wanted tu buy a blue LED but it was too expensive. Now I have white LEDs everywhere.
Laser pointers are nice too.
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When I was young, I wanted tu buy a blue LED but it was too expensive. Now I have white LEDs everywhere.
Laser pointers are nice too.