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Perception and Baseball
Here is an interesting article about how
some phenomenon in baseball are explained. For instance, it's actually
impossible for a batter to keep his eye on the ball all the way to the
plate. The angular velocity of the ball when it gets close to the plate is too fast for the eye to track it. A quick
calculation tells me that a pitch thrown at 85 miles per hour will have an
average
angular velocity of 1500 degrees/second for the final five feet to the
plate. By comparison, the ball is traveling at 8 degrees/second for the
first five feet. Very good batters can no longer track the ball the last 5 feet.
Thus, in the 0.04 seconds that it takes the ball to travel those final 5 feet, the swing is
directed at where the ball is expected to be.
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April 21, 2006
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