The Meaning Behind the Black Hole Equation | Physics Made Easy

The Schwarzschild Metric is very often used to describe nonrotating, uncharged, black holes (as well as other gravitational bodies) and the effect that they have on the spacetime around them.

We can build all the information we need in order to understand the equation that gives the proper time interval between two events in 4-dimensional spacetime just by starting from Pythagoras' theorem.

We can see how it can be used to find the distance between two points on a 2-dimensional grid, and we can even extend this theorem into 3d and 4d.