Beat me to the punch Phil. That was going to be my Coup de Tat
The other one is if certain atoms absorb light energy and not the mass as per your arguement above, and raise electrons to higher orbits and then re- emit that light at a specific wavelength when the electrons "fall" back, after all the photonic light energy has been absorbed and re-emitted, what happens to the supposed mass that is left over from the photon. Does it just hang around as an energyless massicle?
Fun debate guys. Yep I'll be the first to admit I drew a long bow on a lot of my arguements
, but fun and mind exercising all the same, without getting too bogged down in the mathematics of it all.