Not all changeups are created equal; seam shifted wake baffles hitters

While changing the rotation rate/axis of a thrown baseball has long been a weapon in a pitcher's arsenal, some pitchers, like Washington Nationals star Stephen Strasburg, manipulate the baseball's wake to create unexpected movement from a familiar delivery (his changeup).

from Phys.org - latest science and technology news stories https://ift.tt/37sM6hX

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