Re: A89: What's Wrong?

To: assembly-89@lists.ticalc.org
Subject: Re: A89: What's Wrong?
From: TGaArdvark@aol.com
Date: Fri, 12 Jan 2001 00:45:03 EST
Reply-To: assembly-89@lists.ticalc.org

A photon, which has no mass and nonzero energy, always
moves at a velocity of c.  What it's moving through or who
is watching it or how fast the person watching it is moving
or how fast it's source it's moving is completely irrelevant.
A photon always moves at a velocity of c.  A photon always
moves at a velocity of c.  It seems to slow down in matter
due to absorption and re-emission.  It's not slowing down.
It's being absorbed (and therefore no longer exists), and
then being reemitted a short time later, at which time
it once again moves at c.

A photon always moves at a velocity of c.

A photon always moves at a velocity of c.

In a message dated 1/11/01 8:22:55 PM US Mountain Standard Time, 
goodsell@bridgernet.com writes:

> I do. It's an incorrect statement of the theory. It's well known that the
>  speed of light can vary. Relativity says that all observers must measure 
the
>  same speed for the light the being observed, which may or may not be
>  travelling in a vacuum, which is the only place light actually goes the
>  "speed of light". Or something like that.