mickeyd
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
Baseball season is upon us. Many folks these days could care less. I am not part of that group however. If you have an interest in the game, you may enjoy this illustration on how the curveball works. I could never hit a curve. No doubt that's why I had so many of them tossed to me in my playing days. The link to the illusion contest is pretty neat, IMHO.
The break of the curveball « Best Illusion of the Year Contest
In baseball, a curveball creates a physical effect and a perceptual puzzle. The physical effect (the curve) arises because the ball’s rotation leads to a deflection in the ball’s path. The perceptual puzzle arises because the deflection is actually gradual but is often perceived as an abrupt change in direction (the break). Our illusions suggest that the perceived “break” may be caused by the transition from the central visual system to the peripheral visual system. Like a curveball, the spinning disks in the illusions appear to abruptly change direction when an observer switches from foveal to peripheral viewing.
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The break of the curveball « Best Illusion of the Year Contest