It doesn't stand on its own terribly well without some substantial discussion in class to back it up, but here's a handout that I've given to classes to try and

It doesn't stand on its own terribly well without some substantial discussion in class to back it up, but here's a handout that I've given to classes to try and discuss this stuff a little: http://othello.alma.edu/~jensens/teaching/classes/spacetime.pdf http://othello.alma.edu/~jensens/teaching/classes/spacetime....