University of Colorado
University of Colorado: Physics 2000: Quantum Atom
Several pages with an interesting discussion of the visible light spectrum and atomic absorption and emission line spectrum. Features excellent graphics, thorough and understandable discussion, and many interactive Java applets.
Rice University
Rice Virtual Lab in Statistics: Sampling Distributions
This Java Applet lets you explore various aspects of sampling distributions.
Davidson College
Davidson College: Le Chatelier's Principle Applet
This site includes an applet on Le Chatelier's principle. The applet allows the user to specify the initial amounts of carbon, water vapor, hydrogen gas, and carbon monoxide as well as the system temperature and volume. The applet will...
University of Colorado
University of Colorado: Physics 2000: Spectral Lines
Several pages from an excellent site which describe the science of spectroscopy. The unique atomic emission (and absorption) line spectrum of elements are illustrated and explained. Includes a Java applet depicting the quantum energy...
Florida State University
Florida State University: Molecular Expressions: Measuring With Shadows
You can use shadows and a meter stick to measure very tall objects from the ground--and before you try this experiment yourself, see how it works with a Java applet that measures the height of a Tyrannosaurus Rex.
Other
The Maya Calendar: A Converter
Gives the Mayan days and months. In addition, a Java Applet is included which will convert any date (Gregorian calendar) to its corresponding Mayan date.