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Acoustics, Vibration, Resonance, Chladni Figures, Plate, Nodal Lines,
Geometry
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One of Chladni's best-known achievements was
inventing a technique to show the various modes of vibration of a rigid
surface. A plate or membrane vibrating at resonance is divided into
regions vibrating in opposite directions, bounded by lines of zero
vibration called nodal lines.
Ernst Florens Friedrich Chladni (1756 - 1827) was a German physicist and
musician. His important works include research on vibrating plates and
the calculation of the speed of sound for different gases.
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