(n): the trace of a point whose direction of motion changes
(n): a wheel with teeth for making a row of perforations
(n): a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
(n): a gambling game in which players bet on which compartment of a revolving wheel a small ball will come to rest in
(n): a game that involves gambling
Invented by French mathematician Blaise Pascal. The popular game of chance was a byproduct of his experiments with perpetual motion.