Super powerful 42 Tesla magnet that uses less than one watt

[John Clark]

The most powerful artificially produced constant magnetic field ever made was at the National High Magnetic Field Laboratory in Florida; it had a strength of 45.5 tesla and required 20 million watts of electricity to operate. But the March 13, 2026 issue of the Journal Science Advances reports on the construction of a magnet that is almost as strong, 42 tesla, that needs less than one watt of power to operate!  This could lead to big improvements in MRI imaging machines, particle accelerators, and fusion power reactors. And it could lead to a better scientific understanding of how super powerful magnetic fields behave. 

 Super powerful 42 Tesla magnet that uses less than one watt

John K Clark    See what's on my list at  Extropolis

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