Subject:
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Re: Transit Time to Mars
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Newsgroups:
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lugnet.off-topic.geek
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Date:
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Fri, 17 Dec 1999 01:39:17 GMT
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Viewed:
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375 times
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On Thu, 16 Dec 1999 14:24:21 GMT, "James Powell"
<wx732@freenet.victoria.bc.ca> wrote:
> You use Hydrogen gas as the coolant on a nuclear reactor, then vent it out the
> backside ('hot' as in thermally hot, not radioactive)
Ah, right. What's the v on the gas? You're still using reaction mass.
>
> The radiation from it is not all that intense...space is a vast area, and
> radiation dies off at the square of the distance.
Well yeah, but the stuff does hang there waiting for the next rocket
to bump into that. That's what I was asking about.
>
> Interestlingly enough, the USAF also flew a nuclear powered bomber. (B-47?
> Big thing, with 4 Nucular heated jet engines. It could just fly on the nuke
> only.
Yick. To be honest. I mean, Nukyuler power plants, yes. (though no
Russian ones preferably *shudder*). Nukyuler subs, if we have to. But
putting that kind of failure-intolerant tech, in quadruplicate, on a
bloody _plane_?
Yick Yick Yick.
> > Anyway, what was it again, Project Orion?
> Thats a different idea. That one can get you from earth to anywhere...and I
> think it was Orion. _really_ bad fallout problems with it, so not very much
> use except in a emergency. (read "footfall" J. Pournelle/L. Niven for a
> description of it in action.
Been there, done that ;)
Read most of the collaborations, and as much as the library had of the
single-authors of either.
Still have the last 5 years of BYTE, including JP's column, as well.
Jasper
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Message has 1 Reply:
 | | Re: Transit Time to Mars
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| (...) (the web page has more info, I just knew it was more effiecent than a conventional rocket...V is not the problem, it is the Specific R that is higher than with a chemical rocket (around 825 on NERVA test plant, verses about 450 for "O2H2" (...) (25 years ago, 17-Dec-99, to lugnet.off-topic.geek)
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Message is in Reply To:
| | Re: Transit Time to Mars
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| (...) a (...) difference (...) You use Hydrogen gas as the coolant on a nuclear reactor, then vent it out the backside ('hot' as in thermally hot, not radioactive) The radiation from it is not all that intense...space is a vast area, and radiation (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
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