Article View: sci.space
Article #236Re: Comet collision
From: John Roberts
Date: Tue, 03 Nov 1992 02:57
Date: Tue, 03 Nov 1992 02:57
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-From: sheaffer@netcom.com (Robert Sheaffer) -Subject: Re: Swift-Tuttle Comet a threat to earth? -Date: 2 Nov 92 18:03:06 GMT -Organization: Netcom - Online Communication Services (408 241-9760 guest) -But assuming that it is possible to fragment the nucleus of the comet, -this imparts a transverse velocity to the fragments that they did not -previously have. If they previously were exactly on the "right" path -to strike earth, by imparting motion to them along a right-angle to -that path, won't even a relatively small delta to their previous path -cause the vast majority of the fragments to miss earth? And of course if you weren't sure the comet would hit the Earth, you've just greatly increased the probability of *some* impact... John Roberts roberts@cmr.ncsl.nist.gov
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Newsgroups: sci.space Path: arc1-ca.pugleaf.net!sparky!uunet!europa.asd.contel.com!news.ans.net!rpi!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!news.sei.cmu.edu!fs7.ece.cmu.edu!crabapple.srv.cs.cmu.edu!roberts@cmr.ncsl.nist.gov From: roberts@cmr.ncsl.nist.gov (John Roberts) Subject: Re: Comet collision Message-ID: <Bx4DKr.54L.1@cs.cmu.edu> X-Added: Forwarded by Space Digest Sender: news+@cs.cmu.edu Organization: National Institute of Standards and Technology formerly National Bureau of Standards Original-Sender: isu@VACATION.VENARI.CS.CMU.EDU Distribution: sci Date: Tue, 3 Nov 1992 02:57:12 GMT Approved: bboard-news_gateway Lines: 19