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Article #6355Re: DC vs Shuttle capabilities
From: Pat
Date: Fri, 18 Dec 1992 18:05
Date: Fri, 18 Dec 1992 18:05
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In article <ewright.724441823@convex.convex.com> ewright@convex.com (Edward V. Wright) writes: >In <1992Dec14.175934.5993@iti.org> aws@iti.org (Allen W. Sherzer) writes: >>the availability of lunar oxygen and perhaps hydrogen will greatly reduce >>that cost. >Oxygen, definitely. But even if discover water ice on the Moon, >I don't think hydrogen will be plentiful enough that you'd want >to throw it away at the rate rocket engines do. Given that the current alternative is to haul hydrogen up from earth, we dont seem to have much choice. either someone needs to develope really good ion thrusters or we are gonna have to lasso a comet in to LEO or pay through the nose everytime someone needs a drink in space.
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Path: arc1-ca.pugleaf.net!sparky!uunet!digex.com!prb From: prb@access.digex.com (Pat) Newsgroups: sci.space Subject: Re: DC vs Shuttle capabilities Date: 18 Dec 1992 18:05:06 GMT Organization: UDSI Lines: 15 Message-ID: <1gt3siINNqck@mirror.digex.com> References: <g9g2v_p@rpi.edu> <1992Dec14.175934.5993@iti.org> <ewright.724441823@convex.convex.com> NNTP-Posting-Host: access.digex.com