3 ms·
It looks like a permanent magnet: https://spectrum.ieee.org/image/MzcxMTU3OA.jpeg https://spectrum.ieee.org/image/MzcxMTU3OA.jpeg
by utexaspunk 6y ago
It looks like a permanent magnet:
https://spectrum.ieee.org/image/MzcxMTU3OA.jpeg https://spectrum.ieee.org/image/MzcxMTU3OA.jpeg