The
mechanical components and materials of Roulette wheel construction actually
reduce its randomisation effect upon the game. The wheel has a fixed mass,
size & a fairly constant rate of spin. The ball has a fixed mass,
diameter, surface friction & is spun in the opposite direction within a
narrow range of force.
When
the Roulette croupier spins the wheel, he keeps it spinning at about the same
rate. Too fast and the ball takes forever to slow down enough to stop in one
of the canoes (note that despite its spin speed, if the difference of the
spins of wheel & ball are great enough, the ball will jump fret and will
come to rest in another number when it's energy is 'right'. This means that
the relative speed for the ball to come to a stop is about the same on every
spin.
When
the ball looses momentum enough for gravity to exceed the centrifugal force
holding it to the top & outside of the rim it falls in toward the numbers
(again, this is a function of the mass of the ball, the force of gravity,
diameter of the wheel, slope of the angle, friction of the surfaces & the
air, all of which are fixed invariable amounts!)
Of
course the ball may hit one of the 'baffles' on the way down. This randomises
the passage of the ball, slightly but not enough to defeat the general physics
of the motion of ball and wheel.
You
may have heard talk of 'biased' wheels. This does not imply that the wheel
spins unevenly (although I'm sure that must happen to a small extent too). A
biased wheel is one that has a different angle on its rim, or a different
mass, size of baffles, spacing of baffles, depth of canoe or any one of a
number of factors that combine to make the randomising effect; 'non-optimum'.
A
wheel like this (and remember, few wheels are mass produced. They are usually
built in short batch runs at engineering works.) may even look like the rest.
Its difference is usually so subtle that it can only be identified from the
skewed statistics of its results.
It
is unlikely that the casinos have the computing power or engineering knowledge
to find the optimal design for a wheel and so they too can only evaluate a
wheel on the strength of its outcomes. It is highly likely that the casino
owners know which wheels give them better & worse returns. This is where a
little inside information can save some hours of logging results and the
subsequent calculations.
Is
knowing which wheel has a bias enough to ensure, on its own, that you would
make money?