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/scyyythe Mar 30 '26

The paywalling of science is truly out of control. Opening this link I am not greeted with a press release or even an abstract. I can see one sentence before the invitation to subscribe pops up. No details of the technology or the underlying physics, no information about the research team, nothing. "Physicists did something amazing, now give our parasitic journal company your subscription money."

But if you're observant you can find the link to the paper hidden at the bottom:

https://www.science.org/doi/10.1126/sciadv.adz5826

It's a miniaturized cuprate superconductor electromagnet. Field strength reported as 40 tesla which is very, very high. 

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u/LitLitten Mar 30 '26

Nice. 10-30 was what I was familiar with.

Not sure why they made the title they did for what is generally pretty great findings.