Re: Curvature of Space

[DSCHROEDER@cc.weber.edu]

> Yes, but single photons refrain from doing so for reasons of
> discretion and simultaneous energy and momentum conservation *in
> free space*. Delbr=FCck scattering requires an interlocutory atom
> to mediate the momentum problem.
>
> I took the original question to refer to the deflection of a
> photon in an electric field. Nothing was said about the presence
> of another object; if that is allowed why not just add a
> gravitational field; that works - or perhaps a Venetian blind.
>
> How come no one attacks my symmetry argument for nondeflection?
> I thought it was pretty cute; I'd like to know if it has any
> holes in it.
>
> Leigh

A static field is not free space.  It assumes a fixed source,
that is, an object that can absorb an arbitrary amount of momentum.

I'm sorry, I already deleted your symmetry argument.  But I believe
that for Delbrueck scattering to work, you need an inhomogeneous
field.  Does that help?

-dan