Article View: sci.space
Article #157Re: Comet Collision
From: Carl J Lydick
Date: Fri, 30 Oct 1992 22:39
Date: Fri, 30 Oct 1992 22:39
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In article <1992Oct30.153103.29953@pixel.kodak.com>, dj@ekcolor.ssd.kodak.com (Dave Jones) writes: >One day, I'm going to sit down and work out if Asimov's Martian Way really >would have worked....soft land a chunk of Saturns Rings on Mars, when just >getting into Earth orbit takes 90% of your starting mass? Hmmm....... Ah, but if you aerobrake to get into a nearly circular orbit and use your spacefaring iceberg for reaction mass in your descent, then you don't CARE if you use up 100% of it in soft-landing it. After all, you've now got it in the Martion atmosphere, where it would've ended up had you soft-landed 100% of the mass (unless, of course, you increase the Martian atmospheric pressure considerably). -------------------------------------------------------------------------------- Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL Disclaimer: Hey, I understand VAXen and VMS. That's what I get paid for. My understanding of astronomy is purely at the amateur level (or below). So unless what I'm saying is directly related to VAX/VMS, don't hold me or my organization responsible for it. If it IS related to VAX/VMS, you can try to hold me responsible for it, but my organization had nothing to do with it.
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arc1-ca.pugleaf.net!sparky!uunet!usc!zaphod.mps.ohio-state.edu!darwin.sura.net!wupost!sdd.hp.com!saimiri.primate.wisc.edu!ames!data.nas.nasa.gov!mustang.mst6.lanl.gov!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARLReferences:
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!zaphod.mps.ohio-state.edu!darwin.sura.net!wupost!sdd.hp.com!saimiri.primate.wisc.edu!ames!data.nas.nasa.gov!mustang.mst6.lanl.gov!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARL From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick) Newsgroups: sci.space,alt.sci.planetary Subject: Re: Comet Collision Date: 30 Oct 1992 22:39:06 GMT Organization: HST Wide Field/Planetary Camera Lines: 19 Distribution: world Message-ID: <1csdiaINNnar@gap.caltech.edu> References: <1992Oct30.151400.29263@pixel.kodak.com>,<1992Oct30.153103.29953@pixel.kodak.com> Reply-To: carl@SOL1.GPS.CALTECH.EDU NNTP-Posting-Host: sol1.gps.caltech.edu