roulette

Roulette is the French diminutive of roue ('wheel'), from Latin rota ('wheel') — 'little wheel.' The rota root is extraordinarily productive in English: it gives rotate, rotary, roll (via Old French roler), and even 'rowel' (the spiked wheel of a spur). The roulette wheel is thus named with complete transparency: it is, precisely and only, a little wheel. The casino gambling device shares its name with several other 'little wheel' objects: the roulette used by engravers to press a pattern into a surface, the roulette used by dentists and other tools, and the roulette in geometry (a curve traced by a point on a rolling shape, of which the cycloid is the most famous example). The word's application to the gambling wheel is the most famous of these uses, but it arrived to a word already rich with tool and geometric applications.

The origin of the roulette wheel as a gambling device is commonly credited, with some historical basis, to Blaise Pascal's 17th-century experiments on perpetual motion. Pascal, among the greatest mathematicians in history, was fascinated by the problem of a wheel that would spin indefinitely without external energy input — an impossibility, but one that occupied serious mechanical thought in his era. The story holds that his experiments produced a spinning wheel mechanism that, while not perpetual, was suitably random and balanced for use as a gaming device. The historical record is imprecise on the details, but roulette-type wheels are documented in French gaming houses by the early 18th century, and Pascal's connection to the mechanism, while possibly legendary, is not implausible given his documented interest in probability and mechanical devices.

The modern roulette wheel stabilized in the 1790s in Paris gaming houses, featuring numbers 1 through 36 alternating red and black, plus a green zero — which gave the house its statistical edge. An American variant added a second green slot, the double zero, increasing the house edge from 2.7 percent to 5.26 percent, which is why sophisticated gamblers prefer European roulette when given the choice. The wheel was introduced to the newly established casino in the Spa of Bad Homburg in Germany in the 1840s by the brothers François and Louis Blanc, who retained the single zero and attracted so many visitors that Bad Homburg became the gambling capital of Europe. When Germany banned casinos in 1873, the Blancs moved to Monte Carlo, established the casino that would define Mediterranean luxury gambling, and carried roulette with them.

Roulette's theatrical qualities — the spinning wheel, the rolling ball, the long moment of anticipation before the ball drops into a numbered pocket, the croupier's voice calling the result — made it the emblematic casino game in the European tradition, the backdrop for countless scenes in novels and films depicting the drama of fortune. The game requires no skill, makes no pretense of strategy, and offers one of the purest expressions of pure chance available in a gambling establishment. Dostoevsky, who was catastrophically addicted to roulette, wrote The Gambler in 26 days to pay his gambling debts — dictating it to a stenographer he would later marry. The little wheel has broken a remarkable number of the people who watched it spin.