Rotationshyperboloid

Hyperboloid of rotation







"Well, then you got a problem, son! 'Cause women want to dance; they always want to dance. Always!" "Why?" "'Cause, they can get close and wiggle their bodies around in front of a man, in a safe atmosphere." "See, I don't really want to wiggle around in public." "Well, of course not - you are a man. My point is: you going to have to learn, otherwise later on in life you are going to be wiggling all by yourself." - (That ‘70s Show, S1xE7)