My friend was telling me about something he read about involving points on a circle that seemed kind of cool. It went something like this: Have a circle of radius 1, and mark n equally spaced points on the outer perimeter. Choose one of the points, and connect all other points to it with a straight line running through the circle. The product of the lengths of each line is n. Sound familiar to anyone? I'd like to know more. That seems kind of neat.