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Article #2380Re: Billion-year survivability
From: John E. Holeman
Date: Mon, 23 Nov 1992 06:58
Date: Mon, 23 Nov 1992 06:58
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In article <tim.722137373@giaeb> tim@giaeb.cc.monash.edu.au (Tim Roberts) writes: >tolman%asylum.cs.utah.edu@cs.utah.edu (Kenneth Tolman) writes: > >>>If I wanted to send information to a society that will inhabit the earth >>>one billion years in the future, how would I do it? > Wouldn't it be possible to leave the message in the form of a radioactive substance with a half-life of nearly a billion years and contrast it with some substance which is either stable or has a different half-life, so that when a billion years rolls around the message "appears" to anybody who has the ability to detect it? Of course this assumes that it will be left somewhere where it can be found and that the existing society can interprit the message...
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Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!uwm.edu!ogicse!flop.ENGR.ORST.EDU!flop.ENGR.ORST.EDU!usenet From: johnh@xanth.CS.ORST.EDU (John E. Holeman) Newsgroups: rec.puzzles Subject: Re: Billion-year survivability Message-ID: <1epvfaINNla5@flop.ENGR.ORST.EDU> Date: 23 Nov 92 06:58:50 GMT Article-I.D.: flop.1epvfaINNla5 References: <10920011@pollux.svale.hp.com> <1992Nov10.134633.9751@hellgate.utah.edu> <tim.722137373@giaeb> Organization: Oregon State University Lines: 13 NNTP-Posting-Host: xanth.cs.orst.edu