"When all the bets are placed, the dealer spins the wheel as a rubber flapper at the top flaps between the different stops. Whichever stop the flapper rests on when the wheel stops wins."

"Roulette seems incredibly simple

"If you turn over a playing card, the chance it will be red is 0.5, or 50%. If the casino was fair, it would pay you $1 for a $1 bet. But if a casino pays you $0.90 instead, it has a 5% edge."

"The simplest, yet worst way to leave a casino is when you've lost all your money. It's hard to walk away when you are up, but the best gamblers learn how to maintain discipline and keep their winnings."

"Two different roulette wheels exist: European wheels which have 36 numbers plus a single zero and a house edge of 2.63% and American wheels which have a zero and double-zero and a 5.26% casino edge."