Is 0.00000280 yards per minute as fast as a Knuckleball (baseball)?
It's about 0.000000002 times as fast as a Knuckleball (baseball)
The speed of a Knuckleball (baseball) is about 2,000 yards per minute.
(a.k.a. knuckler, a.k.a. floater, a.k.a. dancer, a.k.a. butterfly ball) (major league average)
The average speed of major league knuckleball pitch is 2,000 yards per minute. Eddie Cicotte, who was later implicated in the 1919 Black Sox scandal, is credited with developing the pitch ca. 1906.
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