Check out our flashlets!
These are a few applets I use to teach classes. My graduate students and I have written all the applets shown below. I collect them here because others may find them useful outside the scope of the lectures I provide on the web. They are also listed in major directories. Please feel free to link to any of them or download their source code. If you have suggestions or want to make modifications, I ask that you contact me at firstname.lastname@example.org. Those who need ask further copyright questions may read conditions for use.
Watch alpha particles scatter from atomic nucleii. These applets compare the Physics of two competing theories in 1910 for distribution of charge in an atom. (More information, source code, and download)
Change the group and phase velocities of interfering sine waves. This is an economical but useful demonstration. Relevant Lecture for Physics 252 Modern Physics. (More information, source code, and download)
The code for these applets was written by Drew Dolgert
Shoot a cannon to see how high and far the ball flies. The applet uses real units and physical values to compare with calculations. (More information, source code, and download)
This applet shows how atomic velocities cause the Brownian Motion of a dust particle. In one panel a small ball jitters. In the next, we see that it jitters because many smaller balls bat it rapidly about. (More information, source code, and download)
This applet describes a single atom gas moving in one dimension. It accelerates or decelerates only through classical collisions with the moving piston on its container. This alone is enough to explain why the gas gets warm when it is compressed and cool when expanded. (More information, source code, and download)
One ball strikes another. Change relative masses, initial velocity, and angle of the collision. Watch it in the center of mass and lab frame. It makes the collision angles very clear, and the controls are sort of fun. (More information, source code, and download)