- #1
azaharak
- 152
- 0
HI
Can someone give a good explanation of how we can infer an age of the universe from the CMBR. I was thinking in principle you could get an estimate from determining the rate at which the CMBR is changing, but experimentally that would seem to difficult to observe. Also i guess that assumes a constant rate of expansion.
Also, how does mass effect the expansion? For instance, we often hear that the "space between atoms isn't expanding". I'm assuming this is because mass distorts the expansion?
Thanks to everyone in advance
Can someone give a good explanation of how we can infer an age of the universe from the CMBR. I was thinking in principle you could get an estimate from determining the rate at which the CMBR is changing, but experimentally that would seem to difficult to observe. Also i guess that assumes a constant rate of expansion.
Also, how does mass effect the expansion? For instance, we often hear that the "space between atoms isn't expanding". I'm assuming this is because mass distorts the expansion?
Thanks to everyone in advance