Seeing Sound November 16, 2009November 16, 2009 ~ DougIllustrations from “Sound” by John Tyndall (1915) via Google Books. bowing Cladni plate Chladni patterns vibrating rods sound vibration in water sand pendulum light and soundRelated Posts:Dulcimer Sound Holes And Sound PortsElementary Lessons On Sound - Circa 1879The Natural History Of The Musical Bow (1899)