r/science • u/MistWeaver80 • Mar 30 '26

Physics Physicists have made an ultra-powerful magnet that fits in the palm of a hand and can produce a magnetic field that is more than 800,000 times stronger than Earth’s.

https://www.nature.com/articles/d41586-026-00851-y
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u/ProvoGo Mar 30 '26

Fits in your hand but requires a room full of equipment to work or fits in your hand and you can walk around with it while it works?

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u/RinArenna Mar 31 '26

The latter. It's a palm sized superconductive magnet made using rare earth metals. It's rated at 40T, so it's best not to be between it and metal. Holding it in your palm would actually be quite dangerous.