inspired by a chladni plate experiment

In this video, a guy pours couscous over a plate and plays the edge of the plate with a bow to make musical vibrations, which then causes the couscous to move into beautiful patterns.




This inspired me to try similar, except I don't have a thin metal plate or a bow--or, right at the moment, couscous. What I do have is a cookie sheet, rice, and a saw. So!

Here's the rice on the cookie sheet:



Here it is after I shook the tray back and forth. The way I was shaking it, the rice all clustered together...