# Dust filled universe, is there a type of tension defined?

1. Dec 21, 2009

### Spinnor

Say we have dust filled universe. At some instant of time this universe has a mass density rho, and it evolves with time according to General Relativity. Is there a quantity in that universe that acts like tension? Can we associate something like tension in such a universe. Would its strength be related to rho?

Thanks for any help!

2. Dec 21, 2009

### Spinnor

See for starters:

http://books.google.com/books?id=LA...sure and tension in general relativity&f=true

Free Amazon pages 19,20 of:

Many Worlds in One: The Search for Other Universes by Alex Vilenkin (Hardcover - Jun 27, 2006)
10 new from $6.02 52 used from$1.67

3. Dec 21, 2009

### George Jones

Staff Emeritus
This is dark energy/cosmological constant, and its strength is thought to be independent of matter density.