R.A. Dickey Knuckleball in Slow Motion (GIF)

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R.A. Dickey Knuckleball in Slow Motion (GIF)
Anthony Gruppuso-USA TODAY Sports

Due to the high velocity of MLB pitches, it’s often difficult to perceive the precise movement of the baseball. The knuckleball, for example, mostly looks like a slow (relative to a fastball), non-rotating pitch that slightly changes direction. Here’s how Scientific American describes the physics of the pitch:

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