Although general relativity (GR) is an elegant theory of gravity, we don't often need to use it. For most gravitational interactions, Newton's theory of universal gravitation works just fine. Newton's model is good enough to navigate spacecraft through the so…
Although general relativity (GR) is an elegant theory of gravity, we don't often need to use it. For most gravitational interactions, Newton's theory of universal gravitation works just fine. Newton'… [+3693 chars]