Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83; site ucbcad.UUCP Path: utzoo!linus!decvax!tektronix!ucbcad!kalash From: kalash@ucbcad.UUCP Newsgroups: net.physics Subject: Re: Speeds of light. - (nf) Message-ID: <395@ucbcad.UUCP> Date: Fri, 2-Sep-83 06:44:29 EDT Article-I.D.: ucbcad.395 Posted: Fri Sep 2 06:44:29 1983 Date-Received: Sat, 3-Sep-83 12:28:01 EDT Sender: notes@ucbcad.UUCP Organization: UC Berkeley, CAD Group Lines: 14 #R:umcp-cs:-230600:ucbcad:30300001:000:456 ucbcad!kalash Sep 1 12:57:00 1983 /***** ucbcad:net.physics / umcp-cs!james / 2:49 pm Aug 31, 1983*/ I don't think it has been shown that there is only ONE speed of light. That is, the average speed of light (average of the north-bound and south-bound speeds) CAN be measured, but the speed of light in a single direction cannot be measured. Greep? I thought one of the fundamental principles of relativity was that the speed of light is a constant in any medium... Joe Kalash