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Nuclear fusion reactor in South Korea runs at 100 million degrees C for a record-breaking 48 seconds
(www.livescience.com)
this post was submitted on 06 Apr 2024
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Unfortunately the amount of helium made in fusion is so small as to be useless for anything humans need. Fusion is just that efficient.
They use orders of magnitude more liquid helium to cool the magnets used to stabalize fusion than they would ever make.