1. A roulette wheel system for use with a game of roulette in which for each game of roulette a ball is introduced to a rotating roulette wheel and settles in a pocket, the roulette wheel system comprising: a roulette wheel having a rotatably mounted rotor having pockets into which a ball can be received, each pocket being associated with a distinct number; and a peripheral inclined ball track concentric with and radially outward of the rotor; at least one sensor to measure information including which of a plurality of numbered pockets the ball falls into for the play of each game of roulette, for generating as a first random number the number of the pocket into which the ball falls; and a processor to generate a second random number from the information from the at least one sensor regarding the motion of the ball and/or the roulette wheel during the game.