Evolution of Background and Perturbations in {Cosmology} [Intro]

|This is a Cosmology Series.|

Into

I will briefly explain the important issues on the evolution of the background and perturbations of the universe.
This is a general introduction to the evolution of the universe. It is so general that all the information can be summarized into one figure. (Actually I used two to make it more clear. The figures are extracted from the notes of George@Caltech.)

Here are the two figures.

{Cosmology}Background

{Cosmology}Perturbations

Go on reading with http://multiverse.lamost.org/blog/?p=1959.

|Details will be given in the following posts.|