The One-Way Speed of Light and the Milne Universe · HackerPapers discussions

The One-Way Speed of Light and the Milne Universe — mentioned by raattgift

Thu, 12 Jun 2025 09:23:07 GMT

Physicists (and in particular the subset doing physical cosmology) don't usually explore parametrizations of c because they're not clearly physical (and sometimes even clearly unphysical), or alternatively don't help solve astrophysical or cosmological problems. Relativists sometimes like to explore things that make using the Tangherlini transformations rather than the Lorentz transformations look positively benign. (To be clear, the Tangherlini synchronization system is clearly unphysical, requiring infinite speeds. His thesis also proposed using a distinguished global frame, which is not…

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The One-Way Speed of Light and the Milne Universe — mentioned by Kranar

Mon, 22 Jan 2024 23:07:44 GMT

You make an excellent point but as it turns out the CMB would still appear uniform even the speed of light was not the same in all directions. The reason is that if the speed of light is different in one direction, then the effect of time dilation will also be different depending on direction as well and these two factors cancel one another out resulting in what will still appear as a uniform CMB. The below paper goes into complete technical details giving an example of the speed of light being c / 2 in one direction and instantaneous in another direction (so that it averages out to c), and…

Paper and discussion history. A mention is not an endorsement.

The One-Way Speed of Light and the Milne Universe — HN submission

Mon, 11 Jan 2021 08:02:18 GMT

The One-Way Speed of Light and the Milne Universe

1 point; 0 discussion replies on HN. Paper and source history. A submission is not an endorsement.