Does anyone know whether nuclear fusion energy gain numbers contain energy requirements for keeping the magnets cooled and the vacuum at high quality?
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Replying to @skdh
usually not; the Q for ignition (5) is basically about the amount of energy absorbed by alpha particles directly, the physicists handwave away the magnet cooling and vacuum maintenance energy costs as something that asymptotes out; micro reactor people sometimes factor it in
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Replying to @DanielleFong
yeah, sounds like something physicists would do, exactly what I was worrying about :/
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Replying to @skdh @DanielleFong
consider a spherical ball of deuterium in a vacuum and don't worry about how it got that way
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Well the one fully functioning one we've got hot that way by gravity ;)
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true. did you know it’s got a lower power density than a human? pretty incredible
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the sun is totally overrated, y'ask me
1 reply 0 retweets 0 likes
it's just right for me and my friends :P
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