Mach's Principle versus an Expanding Universe
Lemaître's expanding universe
Our Universe started from a Beta Decay.
Hydrogen was the first element created.
Saul Perlmutter's Group discovered the acceleration.
Ashmore's paradox shows this universe is not expanding.
We have a redshift because of light dispersion
This dispersion of light in a glass prism is exactly what is happening in our universe.
Hubble warned us no to think this universe was expanding because of the red shift.
Einstein's tensor math
These links, on left hand side of page, will cover what you will be reading in Chapter 10.