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Chladni plate for a demonstration experiment in class
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A device replacing the old mechanical apparatus with an electronic one operating at a known frequency.
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- Printables
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- Physics & Astronomy
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- Creative Commons — Attribution — Noncommercial
Chladni patterns are patterns formed on a vibrating plate covered with fine sand or powder.
The plate is set into vibration, for example, by rubbing a violin bow along its edge.
The sand moves from vibrating areas to nodal lines, which remain almost stationary.
The shape of the pattern depends on the frequency, shape of the plate, and how it is fixed.
The experiment was popularized by German physicist Ernst Chladni, who used it to study vibrations and sound.
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