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Physics
High Energy, Nuclear, Particle Physics
What is the key parameter in fusion: momentum or energy?
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[QUOTE="mfb, post: 6077226, member: 405866"] A factor 2 for symmetric reactions. Yes. So what? A car crash test needs less energy if you make the wall move as well. That doesn't mean it would be useful to do so, moving the wall adds so much overhead to the test that it becomes much more expensive, and you probably don't even save energy in the end due to all this overhead. [/QUOTE]
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Physics
High Energy, Nuclear, Particle Physics
What is the key parameter in fusion: momentum or energy?
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