Recent content by niahl

Hello! I started learning relativity recently and I'm an engineering student. I can't stop drawing similarities between the nature of gravity and behaviour of continuous media in the field of continuum mechanics. Is there some direct connection and if so, has something like this been explored...

Hello! Forgive me if I sound amateur, but I'd like to know how one goes about finding the variation of tensor quantities. In the Einstein-Hilbert Action, variations of various quantities including the Riemannian Curvature are found. I'd like to know if there is some general rule to find the...