Cosmology seems to be getting a lot of press these days. And not really good press.
Just search for cosmology and news, and you'll see things like "crisis" and "new physics".
The gist is the best new measurements of the expansion of space disagree. Either 74 or 64.7.
Here's my take.
Imagine you're jogging down the road and every block you pass you look at your watch, and every block takes 2 minutes.
Then one day you run farther than normal, as you go, you notice that it takes 2:03 to run a block, then 2:10, then 2:29.
Clearly, the blocks far away from your house seem to be growing!
What makes them grow? Dark forces!
Obviously, that's not the case, you're just slowing down. Blocks aren't expanding. You're just not running as fast as when you started.
But imagine it's 1930, and relativity is really new and really cool. And galaxies are also really new and really cool.
And we're not talking about a jogger, we're talking about light.
Light travels to infinity forever at c. Relativity says so.
Or..... maybe it doesn't. At least, not for infinity it doesn't.
The speed of a wave of frequency x wavelength.
Redshift is an observed drop in frequency.
Take literally.... redshift would lead to a drop in frequency
I make a hypothesis based on this:
v_photon = c - H * D
It's basically Hubble's Law, but moved to the speed of a photon, instead of the speed of a galaxy.
I also found that this version of Hubble's law is slightly different than the standard model, in that it predicts less expansion at the extreme end of the observable range, which is what we see with the Hubble tension.
Just search for cosmology and news, and you'll see things like "crisis" and "new physics".
The gist is the best new measurements of the expansion of space disagree. Either 74 or 64.7.
Here's my take.
Imagine you're jogging down the road and every block you pass you look at your watch, and every block takes 2 minutes.
Then one day you run farther than normal, as you go, you notice that it takes 2:03 to run a block, then 2:10, then 2:29.
Clearly, the blocks far away from your house seem to be growing!
What makes them grow? Dark forces!
Obviously, that's not the case, you're just slowing down. Blocks aren't expanding. You're just not running as fast as when you started.
But imagine it's 1930, and relativity is really new and really cool. And galaxies are also really new and really cool.
And we're not talking about a jogger, we're talking about light.
Light travels to infinity forever at c. Relativity says so.
Or..... maybe it doesn't. At least, not for infinity it doesn't.
The speed of a wave of frequency x wavelength.
Redshift is an observed drop in frequency.
Take literally.... redshift would lead to a drop in frequency
I make a hypothesis based on this:
v_photon = c - H * D
It's basically Hubble's Law, but moved to the speed of a photon, instead of the speed of a galaxy.
I also found that this version of Hubble's law is slightly different than the standard model, in that it predicts less expansion at the extreme end of the observable range, which is what we see with the Hubble tension.
via International Skeptics Forum https://ift.tt/3muHwqs
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