"The lights on the top of slot machines aren't just for decoration. Called 'candles', the colour of the bottom light denotes the machine's denomination: nickels yellow, quarters yellow, and dollars blue."

"The bigger the prize, the less likely you are to win it. One to one bets like in blackjack are the easiest to win, while enormous jackpot games also have an enormous house edge."

"The most confusing type of slot machine are the 'Buy-a-Pay' machines. On these, the payout for wins is based on how much you bet, where playing anything other than max coins doesn't make sense."

"In the nineteenth century, immigrant labourers from China introduced keno, which would eventually become video keno, to the United States. Because of its origins, it was called the 'Chinese Lottery' at the time."

"1930s Montana saw a game similar to the 'Chinese Lottery' become popular as people could win a lot of money from a tiny bet. Eventually this game travelled to the legal gambling pastures of Nevada."