aiming directly at the catcher. Throw distance is extended by ball spin, but the curve is otherwise unnoticeable.

A more dramatic curving effect can be caused by holding the racquet parallel to the ground. The ball will curve back towards the catcher if, for instance, the racquet is held out to the right by a right-handed person and the ball is aimed approximately 30 degrees to the left of the catcher or more (depending on the velocity of the throw).

Early versions of the Wham-o sets included two extra Styrofoam balls. The Styrofoam

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