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> > If photons were unable to travel in the early
> > universe, how could they have possessed *any*
> > wavelength, much less "every wavelength," as you
> > assert?
> Photons travelled freely between electrons, absorbed
> and emitted over and over again.
> Only after 300,000 years did the elctrons settle into stable
> orbits around atoms, freeing photons to move unimpededly
> from that time to now. Ted it is a little like the way in
> which we see the sky as blue. Solar photons are
> scattered - absorbed and re-emitted - by dust
> particles in the atmosphere. It is this that gives
> our sky its blue colour. (Because white light is
> absorbed and blue light is re-emitted).
> Now imagine this occurring not just for white and
> blue, but for all colours, up to wavelengths equal to
> the diameter of the Universe, and you have the
> principle of the Big Bang at this epoch.
Fascinating. I've really misunderstood this.
> > It's not light. It's just photons. It's the
> > particles which, when assembled, will constitute
> > light. To say an unformed set of photons
> > constitutes light is like saying a stack of bricks
> > is a house.
> Hmmm. Ted, a single photon is "light" - it can be
> destinguisged as such, even to the human eye. One
> does not need to assemble photons in any fashion to
> have light. They are light. Pure and simple, just as
> bricks are bricks.
> Hope this helps
Absolutely! Thanks for clearing this up.
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