Re: A89: What's Wrong?

To: assembly-89@lists.ticalc.org
Subject: Re: A89: What's Wrong?
From: TGaArdvark@aol.com
Date: Wed, 10 Jan 2001 00:30:52 EST
Reply-To: assembly-89@lists.ticalc.org

So it should be rephrased.  Our perception of light is
changed by massive objects.  But then again, everything
is based on a perception.  Hence why they call it
relativity.  :)  It's important to note that all of gravity is
based on these bends in space-time.  If you say that
massive objects don't directly affect light (since gravity
doesn't directly affect light and only changes the
geometry of it's apparent path), you also say that
massive objects don't directly affect other massive
objects.

In a message dated 1/9/01 9:07:57 PM US Mountain Standard Time, 
lilpjd@yahoo.com writes:

> I like your regurgitation of Stephen Hawking's book.  It's pretty well
>  stated.  However, on the question of light.  To say that light is affected
>  by massive objects was not my interpretation of the book.  Instead, I read
>  it as spacetime is affected by the massive objects, and light is just
>  following a geodesic in spacetime.  Light therefore, is not affected by a
>  massive object, but is still going in a straight line.  The only thing
>  affected by the massive object would be spacetime.