Cymatics: Chladni Plate - Sound, Vibration and Sand
Amazing Resonance Experiment!
Plaques d'Ernst Chladni
Chladni Figures - random couscous snaps into beautiful patterns
Ernst Florens Friedrich Chladni was a German physicist and musician. His most important work, for which he is sometimes labeled the father of acoustics, included research on vibrating plates and the calculation of the speed of sound for different gases. He also undertook pioneering work in the study of meteorites and is regarded by some as the father of meteoritics.