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 13:26:00 GMT
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Viewed:
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372 times
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> Ah, right. What's the v on the gas? You're still using reaction mass.
(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" rocket (which is most efficent theretically)
> Well yeah, but the stuff does hang there waiting for the next rocket
> to bump into that. That's what I was asking about.
Hydrogen is not a very radioactive material. Half live of it is very low
(tritium is 12.4 years half life, not like U at 25 000 Y half life)
> 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_?
Wellllll...that was when all things were going to be nuclear...Flew in the
mid-late 50's. Interesting though, that they got the plane to fly around on
the nuke power alone. They were trying to make a plane that wouldn't have to
land all that often...so they could go and bomb russia after russia nuked the
us...that kind of thinking.
1 reactor, heating the air in 4 "jet" engines Water used as sheilding (about
180 ft of water from reactor to crew...I don't want to think of the radiation
on the ground from the dammed thing either!
(hello, this is your ground crew. When they are done here, we need them to be
everbright streetlights :)
(snip)
> Read most of the collaborations, and as much as the library had of the
> single-authors of either.
JP is a very good author. SM Stirling is also very good (Draka is very
frightening book...)
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Message is in Reply To:
 | | Re: Transit Time to Mars
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| (...) Ah, right. What's the v on the gas? You're still using reaction mass. (...) Well yeah, but the stuff does hang there waiting for the next rocket to bump into that. That's what I was asking about. (...) Yick. To be honest. I mean, Nukyuler (...) (25 years ago, 17-Dec-99, to lugnet.off-topic.geek)
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