Quote:
Originally Posted by dmill1220  Hi Peter,
Jim Coyler is right in that Einstein did not believe in the expansion of Space, but as to your question, would another intelligent
observer in a different time frame than ours, agree with our current
estimate of the rate of expansion?.
That would have to depend on their time frame of reference.
If I'm not mistaken, Current theory is that after the BB, the universe started its expansion at a steady rate, then the expansion was sped up somehow in the past at some point.
It is still continuing to speed up, and that is according to our current understanding of the Doppler effect on the Photon.
If they were observing way back in the past, they would not see the same expansion rate. IF they are observing in our time, from a relatively close by location, It should be the same I would think.
The Red shift or the Doppler effect in empty space, In my mind, (may) be effected by the great unknown Dark energy and dark matter, that we have had to invent to explain our observations. but now I believe that we have finally glimpsed dark matter halos around some Galaxies.
Look up Dr. Vera Rubin, her discovery of the rotational speed of stars orbiting their host Galaxy, do not follow Newtons law, and leaves us with a big question. is it variable Gravity or dark matter, then there is the polarization of the CMB that has been discovered and its unkown why it shows this alignment.
The Tired Light theorists have not gone away, look up Compton ray scattering or tired light on WIKI. Tired light - Wikipedia, the free encyclopedia
But I ask, Could something like dark matter or energy have an effect on the energy of the photon resulting in a incorrect measurement of the redshifts?
Zwicky suggested that photons might slowly lose energy as they travel vast distances through a static Universe by interaction with matter or other photons, or by some novel physical mechanism. Since a decrease in energy corresponds to an increase in light's wavelength, this effect would produce a redshift in spectral lines that increase proportionately with the distance of the source. The term "tired light" was coined by Richard Tolman in the early 1930s as a way to refer to this idea.
Mainstream Science has thrown out this idea, but I have to wonder since dark matter and dark energy can effect the orbital speeds of stars and matter, could it somehow effect the photon over vast intergalactic distances by the Process that Fred Zwicky proposed?
Dennis |
Hi Dennis, so good to read your post, young man, lol.
But a prime example of the quality of contact this site offers.
Am also concerned by Tolmans idea, to my understanding, everything
degrades over time, entropy seems to be a fundamental future of all things inorganic, so why should light break the rule? In contrast, organic
lifeforms seem to resist entropy, indeed, contradict it, and grow in
complexity.
Dennis, am not, as yet, convinced of the dark matter/energy scenario.
Tell you why, spacetime is depicted in current thought, as a fabric.
Allow me to put this to you, the surface of a pond has a meniscus,
spacetime in my analogy, it is a surface on what lies beneath, and what
lies beneath contributes in some way to the energy of expansion and also
the mass of the universe. My concern Dennis. We have the intelligence
to pose the question, but do we have the intelligence to understand the
answer?
Best regards,
Peter
