RecognitionUnfair500

RecognitionUnfair500 t1_jcpvyqg wrote

Reply to comment by BrotherBrutha in Where do photons go if they've been emitted but are destined to never be absorbed, and would these photons traveling ad infinitum define the edge of the universe (even if space itself were still larger)? by mysteryofthefieryeye

That is false, and is a violation of the conservation of energy. And you seem to be contradicting yourself as well about the change of the energy of the photon

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RecognitionUnfair500 t1_jco5xbf wrote

Reply to comment by BrotherBrutha in Where do photons go if they've been emitted but are destined to never be absorbed, and would these photons traveling ad infinitum define the edge of the universe (even if space itself were still larger)? by mysteryofthefieryeye

Yes, the point is that the redshift is what we see when we look at distant galaxies. Nothing is intrinsically happening to the energy of the photon. That’s what seems to be missing in a lot of these discussions.

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RecognitionUnfair500 t1_jco38jl wrote

Reply to comment by BrotherBrutha in Where do photons go if they've been emitted but are destined to never be absorbed, and would these photons traveling ad infinitum define the edge of the universe (even if space itself were still larger)? by mysteryofthefieryeye

Red shift and blue shift or astronomical terms for the tops of shift, which has to do with relative velocity. Not just velocity.

There is so much misunderstanding here that I feel obliged as a physics professor to jump in.

Doppler shift is a relative effect between two observers, it is in effect based on the velocity of either the source or the observer. It is not an intrinsic unitary property of an electromagnetic wave or a photon.

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