nikols

About the meaning of Einstein equation I found this http://www.settheory.net/cosmology http://www.settheory.net/general-relativity This is better than the John baez ' article The relation between energy and curvature is not only expressed but also justified It is directly applied to an important example (universal expansion) The expression is simpler (relating 1 componnt of the energy tensor to 3 components of the Riemann tensor) Both diagonal space and time components of the relation are expressed and justified, resulting in showing their similarity like a coincidence .......