Talk:Expanding universe

Messed-up formatting

The edit links for the different sections all appear at the end of the "see also" section rather than where they're meant to be. Does anyone with more wiki-knowledge than me know why? alt 20:40, 31 January 2009 (EST)

It's because of the really tall image to the side—it's positioned where the section edit links are supposed to be, so they get pushed down to just underneath it. Radioactive afikomen ^{Please ignore all my awful pre-2014 comments.} 20:59, 31 January 2009 (EST)

There, I think I fixed the problem. Radioactive afikomen ^{Please ignore all my awful pre-2014 comments.} 21:06, 31 January 2009 (EST)

The Universe is not expanding.

That the Universe is expanding is based on one single premise: the Hubble Red Shift is due to a Doppler effect recessional velocity.

When Hubble published his observations of red shifted light from distant objects there were two possible explanations that came to the fore. One, originated by Georges Lemaitre, was that the Universe was expanding. The other, from Fritz Zwicky, was that light lost energy as it traveled, termed "tired light". At that time, ca, 1930, interstellar and intergalactic space were assumed to be perfect vacuums, or at least close enough for government work, and thus there was no mechanism to redden the light.

Now, 90 years later, we have a much better understanding of reality. But more importantly, far more importantly, we have actual observational evidence that Zwicky was right.

In the radio astronomy of Pulsars we find that the shorter wavelengths of the leading edge of the pulse arrive before longer wavelengths. The velocity of light, c, is NOT constant but varies by wavelength. The conventional explanation is that the DM is the “integrated column density of free electrons between an observer and a pulsar”.

https://astronomy.swin.edu.au/cosmos/P/Pulsar+Dispersion+Measure

The mechanism matters not. What matters is that the interstellar medium is not a vacuum but rather affects light waves in a way best described as having an Index of Refraction greater then 1, unity. We find the same phenomenon in the observation of Fast Radio Bursts from other galaxies, thus indicating that the intergalactic media is not an electromagnetic vacuum.

Conclusion: The Hubble red shift is the result of the light traversing a distance through a medium denser the Eintein's "in vaccuo rather than a recessional velocity.^{— Unsigned, by: RoyLofquist / talk / contribs}

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The "tired light" hypothesis is inconsistent with other data. It fails the Tolman Test, predicts non-observed blurring of distant objects, and fails to account for observed time dilation of distant objects. EyeSky (talk) 12:35, 21 May 2021 (UTC)

An explanation would be required for blue shift (see the Andromeda Galaxy); why does the speed of light have anything to do with 'government work'?

The 'Conclusion' sentence contains no fewer than three typos - which does not bode well for the logic. Anna Livia (talk) 16:33, 21 May 2021 (UTC)