Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site mit-vax.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!mit-vax!csdf From: csdf@mit-vax.UUCP (Charles Forsythe) Newsgroups: net.movies Subject: Re: Why shouldn't time travel leave you in the same spot? Message-ID: <627@mit-vax.UUCP> Date: Wed, 14-Aug-85 19:04:23 EDT Article-I.D.: mit-vax.627 Posted: Wed Aug 14 19:04:23 1985 Date-Received: Sun, 18-Aug-85 01:02:53 EDT References: <9793@ucbvax.ARPA> <323@looking.UUCP> Reply-To: csdf@mit-vax.UUCP (Charles Forsythe) Distribution: net.movies Organization: MIT, Cambridge, MA Lines: 20 Summary: In article <323@looking.UUCP> brad@looking.UUCP (Brad Templeton) writes: >Everybody goes on and on about how if you time travel, you should end >up way out in space because the Earth is whizzing around the sun. > >Not quite true. Aside from the rotation of the Earth about its axis, >the planet is in an inertial frame. To suggest a time traveler would >appear where the Earth "was" implies some sort of absolute frame that >the planet moves in. Nice try Brad -- but wrong. The earth orbits the Sun, the solar system orbits the center of the Milky Way Galaxy, and the Milky Way galaxy is accelerating slowly towards the center of the universe (but moving away). The Earth is NOT an inertial frame at all. -- Charles Forsythe CSDF@MIT-VAX "I was going to say something really profound, but I forgot what it was." -Rev. Wang Zeep