Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site dartvax.UUCP Path: utzoo!utcs!lsuc!pesnta!amdcad!decwrl!decvax!dartvax!chuck From: chuck@dartvax.UUCP (Chuck Simmons) Newsgroups: net.space Subject: RE: Space burial Message-ID: <2771@dartvax.UUCP> Date: Sat, 23-Feb-85 04:29:18 EST Article-I.D.: dartvax.2771 Posted: Sat Feb 23 04:29:18 1985 Date-Received: Sun, 24-Feb-85 09:24:20 EST References: <2057@drutx.UUCP> Organization: Dartmouth College, Hanover, NH Lines: 25 > Has SSI considered the possibility that they could be starting our > first inter-stellar war? I, for one, would consider it a very hos- > tile act if someone were to fire little ash-filled titanium cap- > sules at me. Such bullets propelled by light-sails, as at least > one netter proposed, could reach their victims at .999c given > enough time. Even if launched only with enough velocity to escape > the solar system, those little bullets would pack quite a wallop > when impacting a target at some great differential speed. An > angry, intelligent civilization so threatened could easily calcu- > late the trajectories and figure out where they came from. > > ZAP! we're history! > > Paul Given {ihnp4, houxe, stcvax!ihnp4}!drutx!pagiven I assume this is humor? My physics isn't very good, but... It seems to me that if one of these "bullets" encountered an atmosphere, it would burn up creating a rather beautiful meteorite (?). Also, it seems that a civilization which had communities living outside the protection of an atmosphere would have devised some other form of protection against the occasional small but quickly moving object. Finally, it seems to me that civilizations would tend to be clustered around stars. Could a light-sail powered bullet get near another star at such a high speed? chuck%d1@dartvax