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Cymatics

Cymatics
Resonance made visible with black seeds on a harpsichord soundboard Cornstarch and water solution under the influence of sine wave vibration Cymatics (from Greek: κῦμα "wave") is the study of visible sound co vibration, a subset of modal phenomena. Typically the surface of a plate, diaphragm, or membrane is vibrated, and regions of maximum and minimum displacement are made visible in a thin coating of particles, paste, or liquid.[1] Different patterns emerge in the excitatory medium depending on the geometry of the plate and the driving frequency. The apparatus employed can be simple, such as the old Chinese spouting bowl, or Chinese singing fountain, in which copper handles are rubbed and cause the copper bottom elements to vibrate.[citation needed] Other examples include the Chladni Plate[2] and the CymaScope. Etymology[edit] History[edit] On July 8, 1680, Robert Hooke was able to see the nodal patterns associated with the modes of vibration of glass plates. Influences in art[edit]

http://en.wikipedia.org/wiki/Cymatics

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