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France runs fusion reactor for record 22 minutes (newatlas.com)

submitted 1 week ago by [email protected] to c/[email protected]

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France has upped the ante in the quest for fusion power by maintaining a plasma reaction for over 22 minutes – a new record.

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[–] [email protected] 13 points 1 week ago

Look I'm way way long in the tooth since I took nuclear chemistry, and even then it was a cursory training, but afaik, I think modern fusion reactors need an amount of hydrogen to get started, but then, effectively, they are 'breeding' either deuterium or tritium in situ, from the walls of the reactor.

Even if they didn't, a gram is such a phenomenally small amount when most of the universe is hydrogen.