The collision of snooker balls is also a chaotic process. Suppose you make a small error in striking the cue ball, so that its initial speed and direction is a bit off. That error is amplified when the cue ball strikes the red ball. The direction in which the red ball now moves has a greater error than the error in the initial speed and direction of the cue ball. The more collisions that take place, the more the initial error is magnified. If you planned to knock the red ball off the pink ball and knock that off the third to pot the third ball, you will probably have failed: by the third
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