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Breaking the Rules of Magnetism: Unusual Crystal Surprises Physicists With Cooling Effect (scitechdaily.com)

submitted 3 days ago by Delta_V@lemmy.world to c/science@lemmy.world

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...when atacamite is exposed to a magnetic field, its temperature changes, a rare and valuable behavior that could help shape the future of cooling technologies...

Journal article:
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.134.216701

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[–] SpacetimeMachine@lemmy.world 5 points 2 days ago

Caveat: Old open old microwaves if you REALLY know what you're doing! They can absolutely still hold enough power in capacitors to kill you instantly.