Science!! Fucking magnets, how do they work?
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Gankak
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He also seems really keen on the idea of changing definitions to make sure he can pigeonhole everything into his arguments.
shishare
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Caliane
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BrutulTM
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I didnt' watch the debate but this was kind of an interesting article.
The Bill Nye-Ken Ham Debate Was a Nightmare for Science - The Daily Beast
The Bill Nye-Ken Ham Debate Was a Nightmare for Science - The Daily Beast
Lenas
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Tuco
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Interesting article.
The thing I don't get about nuclear fusion being viable is that with a star the compression force is gravity which is 'free' energy for the star. Any kind of fusion reactor on earth will need to replace a star-sized amount of gravity with something else. In this case they're using lasers and the article seems to indicate that the energy used to power the lasers isn't included in the reaction input.
The thing I don't get about nuclear fusion being viable is that with a star the compression force is gravity which is 'free' energy for the star. Any kind of fusion reactor on earth will need to replace a star-sized amount of gravity with something else. In this case they're using lasers and the article seems to indicate that the energy used to power the lasers isn't included in the reaction input.
gogusrl
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The lasers are used to start the process and won't be required after you get a stable reaction.
Fusion ignition - Wikipedia, the free encyclopedia
Fusion ignition - Wikipedia, the free encyclopedia
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Was expecting kooky science article, like the old Italian guy that supposedly created cold fusion with platinum as a catalyst. Was pleasantly surprised otherwise.
So you use the lasers to start the ignition, and then the heat from the fusion supplies the chain reaction? How do you safely contain a reaction like that while still feeding in more hydrogen gas? Don't you need millions of degrees kelvin to bypass the coulomb barrier? Seems like any sort of "fuel injector" would be destroyed immediately.
So you use the lasers to start the ignition, and then the heat from the fusion supplies the chain reaction? How do you safely contain a reaction like that while still feeding in more hydrogen gas? Don't you need millions of degrees kelvin to bypass the coulomb barrier? Seems like any sort of "fuel injector" would be destroyed immediately.
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Not a physics background(see mundane question above as proof) but my guess is that for a chain reaction to spread uncontrollably to that scale, basically everything in the air would have to be fusable. And my non-educated guess it that things like N2 and O2, even at the temperatures this would generate, don't fuse that well.
Fission reactors chain react out of control because fission can happen at much much lower temperatures and there are safety measures(control rods) put in place to inhibit and control the rate of reaction. Those controls malfunction, you get a meltdown. Here, I think loss of control would be its own safety measure because of how much heat is needed just to sustain the reaction.
But, if that were possible...god, think of the weaponry you could create from that.
Fission reactors chain react out of control because fission can happen at much much lower temperatures and there are safety measures(control rods) put in place to inhibit and control the rate of reaction. Those controls malfunction, you get a meltdown. Here, I think loss of control would be its own safety measure because of how much heat is needed just to sustain the reaction.
But, if that were possible...god, think of the weaponry you could create from that.