Distance, not velocity

[kaneda]

Light leaves a neutron star and under such extreme gravity redshifts in just a few miles. Light travels through a galaxy and with all the gravitational sources about redshifts in thousands of light years. Light travels through the universe where the gravitational sources are even more spread out and redshifts over tens or hundreds of millions of light years.

The further light travels, the more it is redshifted.

 

[James R]

The problem with that idea is that most of the time the light is travelling through "empty" space, far from any matter.

 

[kaneda]

Space is supposed to be curved in that gravity is all pervasive. Even in the furthest reaches of space, there are the effects of gravity from distant objects. It just takes a lot more distance to redshift light in such places.

The big bang idea accepts that even the most remote objects in our local cluster are held in place against expansion by the gravity of very distant objects.

 

[AlphaNumeric]

Light travels through a galaxy and with all the gravitational sources about redshifts in thousands of light years.

It would get blue shifted at it moved towards the galaxy first though. And if the universe is homogeneous then there'd be an equal amount of blue shifting to red shifting over vast distances because overall the photon wouldn't be climbing out of a potential over those millions or billions of years.

Hence only it's immediate surrounds would have any blue or red shifting effect and so your argument doesn't explain the redshifting observed.

No doubt you'll call me a parrot what not and then disappear off to wait a while before returning with the same debunked arguments you always put forward but that won't change the fact you're wrong

 

[Montec]

Hello kanada, et al

Are you referring to the ISW (Integrated Sachs-Wolfe) effect? Here is a paper that discusses ISW in regaurd to the CMB. A short quote:

The ISW effect results from the red- (or blue-)shifting
of CMB photons as they propagate through gravitational
potential wells. If these potentials did not evolve, then
the blueshift gained falling into a potential well would exactly
cancel the redshift emerging from the well; evolving
potentials spoil this cancellation

 

[kaneda]

AlphaNumeric alias You are wrong. Does our galaxy pull a photon from ten billion light years away as you seem to claim? A photon travels through various gravity fields with most of them pulling at it as it passes very far away, so a virtually sideways pull. There is only the interaction you claim when a photon is sufficiently close to any gravitational field.

Why would I call you a parrot, just because you only ever repeat what others have said and are literally incapable of thinking of anything new?

Debunked as in "not in my text books so I don't have a clue so I'll say he's wrong instead of appearing as ignorant as I really am"?

Keep taking the medicine, and the bitter lemons.

 

[kaneda]

Montec. I was not aware someone else had done it, but am not surprised. But the blue-red effect is only for relatively close encounters. The whole of the universe is a sea of gravity, slowing down anything moving through it.

 

[Montec]

Hello kanada. et al.

The phrase "evolving potentials" is what intrigued me the most. This is what can be applied to areas of the universe or to the entire universe. What causes the "potentials to evolve" is at the heart of cosmology. My understanding for the "potentials" is that they are gravitational in nature or if you prefer in the form of "time rates".

 

[kaneda]

Gravity like EMR travels at light speed. However EMR are waves and yet are also discrete, so behaving like particles. Gravity is not discrete and seems to be homogeneous and completely "smooth". It is believed that the gravity from even very distant objects reaches us but is so tiny as to be undetectable. This gives a sea of gravity with the equivalent of whirlpools "near" large masses. It is only close to these "whirlpools" that we get the blue/red effect on photons, where they can be directly influenced instead of a slow but continuous drag on them away from gravitational sources. This "sea of gravity" is denser inside galaxies where large masses are closer together.