Friction rub

What is Friction rub?

Friction rub definition and meaning on Dictionary terms:
noun Astronomy.
any model of the universe deduced from a homogeneous, isotropic solution of Einstein’s field equations without a cosmological constant. Such models form the mathematical basis for many modern cosmologies and provide for expansion or contraction of the universe.

 

reference: https://www.dictionary.com/browse/friction-rub

Tags: