Astr 222 April 11, 2005:  

Dynamics

Geometry in an expanding universe

For a flat universe

Solutions

Scale factor Vs. various cosmological models

Consider the change

What has changed from Newtonian formulae?

Newtonian Approximation

What has changed from a Euclidean space-time?

Steady state and the Big Bang

What if we could look back 10 billion years?

What does this mean for steady state?