- #1
Quarlep
- 257
- 4
You know friedmann equations derived from kinetic energy and potantial energy conservation.I found these shell model for universe.Here I am curious about something. This shell is like a surface of sphere isn't it.I mean it has only surface and that surface mass is m.And we made our equations based on that surface.
Is that shell has a density ? How can we calculatei it ?
I made like this m/4πr2=ρsurface
You can look attachment
Is that shell has a density ? How can we calculatei it ?
I made like this m/4πr2=ρsurface
You can look attachment