Group: sci.physics.particle
From: Koobee Wublee
Date: Sunday, March 02, 2008 11:12 AM
Subject: Re: Why does light bend under gravity?

On Mar 2, 1:54=A0am, Eric Gisse wrote:
> On Mar 1, 8:53 pm, Koobee Wublee wrote:
>
>
>
>
>
> > On Feb 25, 7:47 am, Tom Roberts wrote:
>
> > > The best model we have for the propagation of light near a massive
> > > object like the sun is GR, in which the curvature of spacetime is the
> > > important aspect in determining the path light follows. And it agrees
> > > with measurements to part-per-million accuracy over an enormous range.=

>
> > First, derive a set of geodesic equations a massed particle traveling
> > at high speed near the sun. =A0Then, gradually reducing the mass to zero=

> > and increasing the speed to c, do you see a discontinuity at mass =3D 0
> > and speed =3D c?
>
> > As you know, the geodesic equations are independent of mass. =A0What
> > does that tell you when the model predicts a 1x deflection traveling
> > at speed just a hair below c and suddenly jumps to 2x deflection at
> > speed =3D c?
>
> Show us the mathematics in which this "2x deflection" appears, along
> with a consistent and clear definition of the terms.

Just look in your books. Don't tell you collect them just to sit on.