Return to my Billiard/Pool Pages
Go to my home page

Double Hit Animation

© Copyright 2003, Jim Loy

On the left is a slow motion animation, showing an illegal double hit. Each time the cue struck the cue ball, I drew a vertical black line. Even at this slow speed, it is very difficult to see the double hit. But notice how the cue ball follows the red ball (in a manner different from follow using top-spin). The flickering of the red ball, and the disappearing green cloth is caused by a flaw in Jasc's Animation Shop. On the right is the same thing in even slower motion. And it is still difficult to see. What happens is this:

1. The cue strikes the cue ball, which moves forward.
2. The cue ball strikes the red ball, and stops.
3. The cue strikes the cue ball a second time, which moves forward again.

If the cue had not struck the cue ball a second time, the cue ball would have stayed right where it was when it struck the red ball.

Return to Illegal Double Hit In 99 Critical Shots In Pool.

Return to my Billiard/Pool Pages
Go to my home page