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US scientists achieve net energy gain for second time in a fusion reaction
(www.theguardian.com)
this post was submitted on 06 Aug 2023
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Technology
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I'm not sure if the time scale would be measurable. Nanoseconds at most. But the relevant part is that it's ignition.
A device to harness inertial confinement fusion would work very very differently to a magnetic confinement one if that were the goal here (it's not, it's a weapons research facility). Essentially heating something up a lot in milliseconds and then extracting the heat over hours to months.