Large or small
Each visited casinos wondered - why the dealer to alter Roulette balls - a little over a large and vice versa. Whether this is a tribute to tradition, or the desire to enlarge the casino. We asked a question to the casino dealer in Moscow: "Why in Roulette have to change balls and why there are two different ball?". We have learned that - in diameter and weights respectively depend ball speed and mass of the ball. The player can choose a ball on the soul. But predict how successful it would be unrealistic choice. And since the players - people are superstitious, there is a lot of will and belief related to a ball.
Again, someone more lucky with a small ball, somebody - with great. The issue of choice - and will question the existence of personal superstitions. In the casino we were told that the question of sense to keep two balls in Roulette - rhetorical, it is not more sense than to ask, and why people in general play.
Finally we asked John Forbz known professional in Roulette why there are two balls. He said that his personal opinion on this - tradition, and no hidden meaning in it is not. In many casinos the ball at Roulette do not change, that people not accused them of fraud in favour of institutions. Earlier balls for the roulette wheel made of ivory, and now, with the development of chemical industry and the decline in livestock elephants - from plastic, so modern balls easier. So in the tradition of gambling are not intact.
Overall, we emphasized three basic views on the duality of balls. Some believe that the existence of two balls - a requirement superstitious players, others - balls that something different from each other - and it means that they have different properties and different opportunities respectively to win. Finally, a third believe the second ball just tradition.