 | | Re: Transit Time to Mars —Jasper Janssen
| | | | (...) How do those work? and how much fallout do they leave behind, hanging in space, waiting for the next vehicle to pass through? I mean, it's not like radiation shielding isn't difficult enough already.. Anyway, what was it again, Project Orion? (...) (25 years ago, 16-Dec-99, to lugnet.off-topic.geek)
| | | | | | | | | | Re: Transit Time to Mars —James Powell
| | | | | (...) 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)
| | | | | | | | | | | | Re: Transit Time to Mars —Jasper Janssen
| | | | | (...) 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)
| | | | | | | | | | | | Re: Transit Time to Mars —James Powell
| | | | | (...) (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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