Iron nitride permanent magnets made with DIY ball mill and tested with DIY magnetometer

Submitted ⁨⁨1⁩ ⁨month⁩ ago⁩ by ⁨recursive_recursion@lemmy.ca⁩ to ⁨science@mander.xyz⁩

https://i.ytimg.com/vi/M6XIgdS1rzs/maxresdefault.jpg