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Re: .Bernoulli and curve balls.



This is obviously a pretty complicated problem. Try looking up:

L.J. Briggs, "Effect of Spin and Speed on the Lateral Deflection
(Curve) of a Baseball; and the Magnus Effect for Smooth Spheres", Am.
J. Phys, 27, p589 (1959).


In fact, for a slowly spinning, slowly
pitched *smooth* ball, the curve can break the opposite way as the
air flow may be laminar on one side and turbulent on the other.

The mythology is enhanced! What speed must the ball move (and spin)
so that the airflow becomes laminar? To what precision must this
condition be established and maintained?

Leigh




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