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[d20 Future] Mecha Power Cores
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<blockquote data-quote="Doomhawk" data-source="post: 1985876" data-attributes="member: 26187"><p>This all looks really cool. The only criticism I can think of is on the Fusion-Fission Combined Reactor. Neat idea, but unfortunately, conservation of energy means it's totally impossible. Fissioning lighter elements like helium requires more energy than it puts out, and converting hydrogen to helium back to hydrogen will net you exactly zero energy gained. I'm all for the furious hand-waving and suspension of disbelief that sci-fi usually creates, but this is a violation of one of the basic rules of physics.</p><p>I'll try not to be a complete nihilist, though, so here's an idea you could use for exactly the same generator, changing only flavor text: a chain-fusion reactor. It would have multiple fusion chambers, the first for hydrogen, then for helium, and so on up to the heavier elements, until iron (once you start fusing iron, you put in more energy than you get out, so the emission would be iron particles). It's the same principle as the normal fusion reactor, except it does all the (useful) elements sequentially as they're created from the previous chamber, so you get a lot more efficiency out of it.</p><p>Dunno if you like that idea, and you can feel free to stick with the fusion-fission reactor if you prefer (no-one will notice except physics nerds like me anyway). Doomhawk out.</p></blockquote><p></p>
[QUOTE="Doomhawk, post: 1985876, member: 26187"] This all looks really cool. The only criticism I can think of is on the Fusion-Fission Combined Reactor. Neat idea, but unfortunately, conservation of energy means it's totally impossible. Fissioning lighter elements like helium requires more energy than it puts out, and converting hydrogen to helium back to hydrogen will net you exactly zero energy gained. I'm all for the furious hand-waving and suspension of disbelief that sci-fi usually creates, but this is a violation of one of the basic rules of physics. I'll try not to be a complete nihilist, though, so here's an idea you could use for exactly the same generator, changing only flavor text: a chain-fusion reactor. It would have multiple fusion chambers, the first for hydrogen, then for helium, and so on up to the heavier elements, until iron (once you start fusing iron, you put in more energy than you get out, so the emission would be iron particles). It's the same principle as the normal fusion reactor, except it does all the (useful) elements sequentially as they're created from the previous chamber, so you get a lot more efficiency out of it. Dunno if you like that idea, and you can feel free to stick with the fusion-fission reactor if you prefer (no-one will notice except physics nerds like me anyway). Doomhawk out. [/QUOTE]
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