- #36
PeterDonis
Mentor
- 45,656
- 22,670
PeroK said:But ##a(0) = 0##?
Yes, that's why the thingie I wrote is not a valid Riemannian metric for ##t = 0##. But it's still a perfectly well-defined mathematical formula.
PeroK said:But ##a(0) = 0##?
Start a new thread.PainterGuy said:Thank you all of you!
I see that post #13, #14, #15 were more direct replies to my post. I appreciate and value your advice, and could see your point. There were many points about the big bang which had bothered me for years but I'm glad that I have the basic answers and can picture it better.
There is no doubt that a book should be the primary source of learning, and it gives you a detailed and coherent view of a subject. At the same you need to devote more time to go through a book which some of us find it hard for several reasons.
I have another question cosmic microwave background radiation, CMBR, which is closely related to the observable universe. Could I ask it here or start a new thread?
Thank you!