Ok. A guy fires an arrow at this other guy, who runs away. Now the arrow keeps getting closer and closer, but it never quite impales the second guy because the distance between him and the arrow is able to get infinitely smaller before it happens. What is happening here? The book I got it from says Calculus solved this problem. I dont know why. Anyway. What force particle carries the action if the arrow meets the guy? Does any theory besides string have a smallest distance? :yuck: Heh.. eh... -Spencer :uhh: You Mods might want to move this I think. Sorry for that.