- #1
Tanelorn
- 906
- 15
I was reminded that the speed of light in water is ~75% of the speed of light in a vacuum and I wondered if the speed of light around the time of the BB, when the Universe was more dense needs to be taken into account in calculating various characteristics related to the CMBR?
For example does it have an effect on estimates of age of the U, distance to last scattering, rate of expansion, CMBR temperature, dispersion of the CMBR black body radiation.
Also does this effect also need to be considered when looking at the most distant galaxies? Space is not a perfect vacuum and effects are cumulative.
Thanks
For example does it have an effect on estimates of age of the U, distance to last scattering, rate of expansion, CMBR temperature, dispersion of the CMBR black body radiation.
Also does this effect also need to be considered when looking at the most distant galaxies? Space is not a perfect vacuum and effects are cumulative.
Thanks