Chladni Oscillations on Metal Plate

Chladni Oscillations on Metal Plate

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Credit: TED KINSMAN/SCIENCE PHOTO LIBRARY

Caption: Sand patterns formed from vibrating a square sheet of thin metal. These formations, known as Chladni patterns, occur when fine particles, such as grains of sand or salt, form a unique pattern in response to pure tone vibrations such as musical notes. This sand was placed on a metal plate that was vibrated at different frequency. When the plat is driven at a resonate frequency the sand grains will collect in the nodes. Chladni Oscillations are a standing wave pattern visualized by vibrating a metal plate. The nodes and anti-nodes of the oscillation are made visible my placing sand grains on the plate. This technique for visualizing sound waves was discovered by Ernst Florens Friedrich Chladni (1756 ? 1827) also know for his work with the speed of

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Keywords: anti-nodes, chladni, chladni plate, demonstration, music, node, nodes, oscillation, oscillations, physics, physics demo, plates, sound, standing waves, vibration, vibrations, visualization, wave, waves

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