There are three balls connected with each other by rubber strings whose length is 0. This condition is just like a image of Quarks inside proton. And I set these balls inside a circular wall not to go out the screen.
First, click the start button. These balls start moving. The orange ball is controlable by draging pointer. Please try it. Next, click the Strobo button. You can see the orbit line of the motion. The orbit line can erase by clicking Start button. If you click the Reset button, you can set the state initial.
This motion is calculated by 4th order Runge-Kutta method.
Copyright 1997 KATO Noriyoshi
Nori's personal computer physics