Amazing Random Couscous Snaps Into Beautiful Patterns

Ernst Chladni, an 18th century German scientist and musician, was a pioneer in the field of acoustics, the science of sound. In a famous experiment, he showed how moving a violin bow against a metal plate covered with sand could visually display the movement of sound. The sand concentrated in areas where the plate was not vibrating. Through this work, Chladni concluded that sound travels in waves. He was the first scientist to clearly demonstrate this connection.