This java applet is a simulation that demonstrates scalar waves (such as sound waves) in three dimensions. It shows point sources, line sources, and plane waves, and also demonstrates interference between sources.
When the applet starts up you will see red and green waves emanating from two sources in the center of a cubic box. The wave color indicates the acoustic pressure. The green areas are negative and the red areas are positive.
This program offers you medical information and human body illustrations.
