Cymatics

A whole new world of programming opportunity has just opened up to me; I just learned about cymatics.

“Cymatics is the study of visible sound and vibration, typically on the surface of a plate, diaphragm or membrane. Directly visualizing vibrations involves using sound to excite media often in the form of particles, pastes and liquids.” (wikipiedia)

Make has a great video using an amp and a cornstarch-water mixture to demonstrate how cymatics work.