Three gamblers were arrested after having won nearly 2 million pounds betting on roulette. They won 300,000 pounds one night, came back the next night, and walked out with 1.2 million pounds. They are suspected of using a device that enabled them to calculate the speed of the ball as it traveled around the roulette wheel. A laser measure the time it takes the ball to pass through the same point twice, from which a computer calculates the "decaying orbit" of the ball. This allows the better to determine the slot - within a given range - in which the ball will land. It cannot determine the exact stopping point, it moves the probabilities closer to the better. They've been able to do this, evidentally, in laboratory settings, but this would be the first time it was done successfully in an actual casino. You can read about it here, but below, I'll post the article's simple breakdown of how the scam works.
How the plan might work
1 A laser scanner hidden in a mobile phone which measures velocity is aimed at a roulette wheel as it is spun by the croupier.
2 The laser measures the speed of the ball as it is released and as it passes a second point. The ball's "decaying orbit" can be calculated.
3 The two figures are relayed to a computer, which works out where the ball is likely to come to rest. It would almost certainly not be able to predict the slot but may have been able to work out the sector, improving the odds for the gambler.
4 The computer's prediction is relayed back to the mobile phone. The bet or bets are placed before the cut-off point of three turns of the roulette wheel. The whole operation takes two or three seconds.
Full story about roulette scam you can see when cheater teach you :
History :
Alleged high-tech roulette scam that saw three people walk out of a
London casino with ý1.3 million recently sounds too implausible even for a
movie plot.
But a physicist who developed a technology-based system that famously beat
the wheel in the 1970s has told New Scientist that in theory it would have
been fairly easy to carry out with a little know-how and the right tools.
Two men and a woman were arrested on 16 March after raking in a huge win
over two evenings. Suspicious casino staff are said to have reviewed
videotapes of the players and called in the police, whose investigation is
continuing. The trio are now on bail and have not been charged with any
crime.
Some media reports have suggested they used mobile phones fitted with laser
scanners to measure the speed of the roulette ball when it was released, in
order to calculate where it was likely to fall. The whole calculation would
need to have been completed in just a few seconds, as the dealer cuts off
betting after the ball has rolled three times around the wheel.
But the trick could be pulled off a lot more simply if the phones were used
as stop watches, says Norman Packard, a physicist at the Santa Fe Institute
in New Mexico, US.
Right quadrant
Packard should know. In the late 1970s, he and a group of other physics
graduate students set out to create computers that could compute the sector
of the wheel a roulette ball would land in. They hid these computers under
their clothes or in their shoes, clicking buttons with their toes.
"In the best circumstances, we could predict the quadrant correctly," says
Packard. "We definitely got to the point where we were winning money, but we
didn't continue long enough to make large amounts."
Such a caper is "fairly easy to set up", he says. Just two equations - one
for the ball and one for the wheel, which move in opposite directions -
predict the likely area where the ball will stop. These equations comprise
only a handful of parameters, including the mass and size of the ball, the
shape and roughness of the track, and the tilt of the wheel.
A scouting mission to the casino could give these values for a particular
wheel and ball in advance, meaning the equations can be partially solved
before attempting betting.
The cell phones reportedly used in the alleged London scam could have been
used to determine the ball's speed if buttons on the phones were pressed
when the ball was released and then after one revolution, Packard says. In
fact, some cell phones have their own built-in stopwatches.
A remote computer, or perhaps even one in the phone, could then solve the
equations "very rapidly", says Packard, "because you've done all that
homework".
Increased odds
Even crude predictions could be profitable because of the way the game is
set up. European roulette wheels have 37 resting positions for the ball. In
one version of the game, you bet on a number between one and 36, so you have
a one in 36 chance of winning.
If you win, the casino pays you 35 times your bet. So any time you increase
your odds to better than 1 in 35, you win on average. "Even saying which
half of the wheel is extremely powerful because the payoff is so good,"
Packard says.
Casinos could thwart such a method simply by spinning the wheel more
quickly, which makes the ball bounce around unpredictably. "But croupiers
don't like to do that because people like to watch the wheel," says Packard.
He stopped his own attempts partly because new laws in some US states barred
computers from casinos. British gambling laws from 1845 are currently in the
process of being redrafted to bring them up to date with 21st Century
gaming.
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