Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.BERKELEY.EDU Path: utzoo!watmath!clyde!cbosgd!ihnp4!ucbvax!acc.arpa!art From: art@ACC.ARPA Newsgroups: net.space Subject: Time Retardation Message-ID: <8511111807.AA01976@s1-b.arpa> Date: Sat, 9-Nov-85 17:49:00 EST Article-I.D.: s1-b.8511111807.AA01976 Posted: Sat Nov 9 17:49:00 1985 Date-Received: Tue, 12-Nov-85 06:27:13 EST Sender: daemon@ucbvax.BERKELEY.EDU Reply-To:Organization: The ARPA Internet Lines: 20 > If someone travels at near light speed, isn't elapsed time for she/he > less than the elapsed time for someone traveling at a much slower speed. The difference in the rate at which time passes for two different inertial frames of reference is determined by the Lorentz Transformation: --------- / v**2 v = Velocity of one frame with respect to \ / 1 - ---- the other. \/ c**2 c = Speed of light. As one approaches the speed of light, the rate that time passes in one frame of reference (like a spaceship) as "observed" from the other (say on Earth) approaches zero. Some thought on this leads to the classic "Twin Paradox". I'll let someone else point that solution out. "Art Berggreen" ------