Recent content by cuchey615

Oh ok that makes sense. So the term "null interval" doesn't actually mean there is no interval, it would just mean that we can't measure it?

Hi! I'm a student reading a book given to me by my teacher about relativity and spacetime. It says that the separation between events in spacetime is measured in "intervals," and I can understand that part. What I don't understand is why you subtract the squares of the distance in space instead...