Article View: sci.physics
Article #608Re: The Speed of Light
From: Mr. EuStress
Date: Mon, 03 Aug 1992 20:07
Date: Mon, 03 Aug 1992 20:07
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Christopher Neufeld writes
> Velocities don't transform from frame to frame by simple addition,
> but by so-called Lorentz transformations.
Another writes
> Relativity says that you can consider one of
> the systems as stationary (because all inertial frames of reference are
> equivalent), and then the other would be, according to you, travelling
> at twice the speed of light, which is not possible.
Remember my "IF"s -- "if the one system could `observe'
the other". The one system cannot observe the other
because observations can only made within *ONE*
single (Lorentz transformed) system. But,
**observation does not make reality**.
If two things, both moving near the speed of light,
hit each other the real velocity is near 2c.
The observed would be under c, but that observation
does not change the "reality".
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Path: arc1-ca.pugleaf.net!sparky!uunet!elroy.jpl.nasa.gov!swrinde!sdd.hp.com!caen!destroyer!ubc-cs!uw-beaver!news.u.washington.edu!news From: jcr@milton.u.washington.edu (Mr. EuStress) Newsgroups: sci.physics Subject: Re: The Speed of Light Message-ID: <1992Aug3.200726.18986@u.washington.edu> Date: 3 Aug 92 20:07:26 GMT References: <BsCDrB.Bpu@helios.physics.utoronto.ca> Sender: news@u.washington.edu (USENET News System) Reply-To: jcr@milton.u.washington.edu (Mr. EuStress) Organization: University of Washington Lines: 20