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Get smart. Sign up for our email newsletter. Sign Up. Read More Previous. Support science journalism. Knowledge awaits. These balls seem to swerve along their path unpredictably. It suggests that the ball experiences sudden changes in air resistance, or force of drag. As its name suggests, the pitch can be gripped with the knuckles.
Generally, downward pressure toward the core of the ball is necessary to deaden the spin. So pitchers with smaller hands use their knuckles to press into the ball, and the thumb underneath for balance. Danny is based in Brooklyn, NY. Pitcher R. Dickey is well-known for his knuckleball. Keith Allison via Flickr In the history of sports, few plays have been as tricky to pull off as the knuckleball.
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