From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,FREEMAIL_FROM, MAILING_LIST_MULTI,PP_MIME_FAKE_ASCII_TEXT autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII X-Google-Thread: 103376,9fbc059a74d74032 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2001-06-01 00:57:04 PST Path: archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!skynet.be!freenix!enst!enst.fr!not-for-mail From: Wilhelm.Spickermann@t-online.de (Wilhelm Spickermann) Newsgroups: comp.lang.ada Subject: RE: OT: Relativity misunderstood Date: Fri, 01 Jun 2001 08:49:03 +0200 (CEST) Organization: ENST, France Sender: comp.lang.ada-admin@ada.eu.org Message-ID: Reply-To: comp.lang.ada@ada.eu.org NNTP-Posting-Host: marvin.enst.fr Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit X-Trace: avanie.enst.fr 991382223 94027 137.194.161.2 (1 Jun 2001 07:57:03 GMT) X-Complaints-To: usenet@enst.fr NNTP-Posting-Date: Fri, 1 Jun 2001 07:57:03 +0000 (UTC) To: comp.lang.ada@ada.eu.org Return-Path: X-Mailer: XFMail 1.4.0 on Linux X-Priority: 3 (Normal) In-Reply-To: <3B167715.AA497455@ftw.rsc.raytheon.com> X-Sender: 0211750756-0001@t-dialin.net Errors-To: comp.lang.ada-admin@ada.eu.org X-BeenThere: comp.lang.ada@ada.eu.org X-Mailman-Version: 2.0.4 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: comp.lang.ada mail<->news gateway List-Unsubscribe: , List-Archive: Errors-To: comp.lang.ada-admin@ada.eu.org X-BeenThere: comp.lang.ada@ada.eu.org Xref: archiver1.google.com comp.lang.ada:7958 Date: 2001-06-01T08:49:03+02:00 (To connect to the topic again) If I say that "some number of seconds after an epoch" is a well defined point in time, then I�m definitely telling nonsense from the view of spacetime physics. So I have to make the restriction that "good old theories" are sufficiently applicable (no "pop culture" here :-)). These restrictions include high speeds and different gravitation. Wilhelm On 31-May-01 Wes Groleau wrote: >> from epoch XXX" then no one will be early (if no one travels at too >> relativistic >> speeds). ..... > > (To get a little off-topic) > > The pop culture notion that you can leave earth > and return at near the speed of light, and find > your great-great-great-grandchildren older than > you is a misconception. > > 1. Special Relativity applies to two observers > moving at an unchanging rate of speed relative > to each other. If you leave and return, your > velocity must change. > > 2. IF you meet the conditions of special relativity, > the theory predicts that EACH observer will see > the OTHER'S clock as faster by the same amount. > So if you somehow found a way to get back together > in spite of the constant relative velocity condition, > you would say, "Hey, your clock is several Megaseconds > fast." and he/she would respond, "No, YOUR clock is > several Megaseconds fast." > > Unfortunately, "pop culture" includes many sci-fi writers > and even several science NON-fiction writers, who keep > perpetuating this thing like an urban legend. > > Even worse is the notion that black holes are the answer > to interstellar travel. > > -- > Wes Groleau > http://freepages.rootsweb.com/~wgroleau > _______________________________________________ > comp.lang.ada mailing list > comp.lang.ada@ada.eu.org > http://ada.eu.org/mailman/listinfo/comp.lang.ada