Art Unwin wrote:
Yeah That's the one where you stated energy does not require mass ie
the photon
I would have to go back to the big bang to demonstrate to you that was
wrong.

I was just quoting the standard model. Photons indeed
do have mass since they are always traveling at the speed
of light through a medium. If a photon ever slows down to
zero, that's when its mass goes to zero. No particle with
a non-zero rest mass can ever travel at the speed of light.

I never, never said that "energy does not require mass"!

What I said was that ZERO energy does not require mass.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com