Hubble Redshift: New Paper on Its Implications

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Discussion Overview

The discussion revolves around a new paper on the Hubble redshift and its implications, particularly focusing on concepts from General Relativity, such as the energy change of photons and the nature of isotropic geodesics. Participants seek clarification on these concepts and their interpretations.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants question the meaning of "work" being done on a freely moving photon in the context of General Relativity and isotropic geodesics.
  • One participant draws an analogy between a falling object gaining kinetic energy and a photon potentially gaining energy, suggesting that a photon could change frequency while maintaining its speed at "c".
  • There is a request for clarification on the concept of "rotating space" and its implications, as some participants believe there is evidence against the universe rotating.
  • Another participant expresses uncertainty about the implications of "isotropic geodesics".

Areas of Agreement / Disagreement

Participants express differing views on the interpretation of work done on photons and the nature of isotropic geodesics. There is no consensus on these concepts, and the discussion remains unresolved.

Contextual Notes

Limitations include unclear definitions of terms like "isotropic geodesics" and "rotating space", as well as unresolved questions regarding the implications of the paper's claims about photon energy changes.

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A new paper on the Hubble redshift:

www.ptep-online.com/index_files/2009/PP-16-L1.PDF[/URL]
 
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The author makes two statements I'm not at all clear about...can anyone explain??

In General Relativity, the change of the energy of a freely
moving photon should be the solution to the scalar equation
of isotropic geodesics, which is also known as the equation
of energy and manifests the work produced on the photon
being moved along the path.

What work is being done on a freely moving photon?



...the linear velocity ...of the rotation of space (due to the non-holonomity of it),

What does rotating space mean?...I thought there was rather convincing evidence our universe is not rotating...
 
Naty1 said:
What work is being done on a freely moving photon?
I'll try on this one;
Just like dropping an object from a 100Km tower, the speed at first is slow,
After falling 100Km it will have much more Kinetic Energy.
The fall contributed “work” to boost that energy though acceleration to a higher speed.

Consider the photon that follows the same path; already moving at "c" with some energy.
Shouldn’t it also accelerate to a higher “speed” and energy?
Looking at the photon at the bottom we see it follows the rule of no change in speed, it is still only going at “c”.
However on closer inspection we also notice it has changed color to bluer!
That is a gain in Energy to a higher frequency;
the same “fall” has contributed the same amount of “work” to boost the energy of the photon.

Hope you see the common ground here.
 
Under the influence of gravity, I understand your explanation...

Am unsure what "isotrpic geodesics" imply...
 

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