Quote:
Originally Posted by dodar
If you took 4 wheels and put them in a form such that they would touch the top right, top left, bottom right, and bottom left, I wonder if you could get it to pitch a knuckleball.
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A knuckleball is simply a pitch with no spin, so any number of evenly spaced and equally fast wheels would create such a pitch.
EDIT: They don't have to be evenly spaced, just symmetrical across two perpendicular axes when viewed from the front.
Think almost any two-axle shooter from this year.