Encyclopedia > Cosmological principle

  Article Content

Cosmological Principle

Redirected from Cosmological principle

The Cosmological Principle is an assumption invoked in cosmology that severely restricts the large variety of possible cosmological theories:

On large scales, the Universe is homogeneous and isotropic.

If one assumes these two properties to be true about the Universe, then the only possible cosmic evolution is a global expansion or contraction.

In this case, the velocity between two points must be proportional to their separation; this is Hubble's law.

This principle is tightly related to the more metaphysical Anthropic principle.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
East Marion, New York

... West (41.128923, -72.341894)1. According to the United States Census Bureau, the town has a total area of 5.8 km² (2.2 mi²). 5.4 km² (2.1 mi²) of it is ...

 
 
 
This page was created in 28.9 ms