Unless otherwise mentioned, the applets on this page are compatible with the most recent versions of Microsoft Internet Explorer, Mozilla Firefox, Netscape, and Opera. The full features may not be available on all browsers.
To view these applets you need at least the Java 2 Runtime Environment (J2RE) version 1.4.2.
You can download J2RE v. 1.4.2 on the Sun site.
Particles: this is an applet that simulates the trajectory of tiny "planets" around their "sun". It uses a very simple, Newtonian model.
Older applets - Caution! the applets on this page may crash your navigator if you reload or restart them!