(also Chladni patterns or Chladni's figures)
The patterns formed when a sand-covered surface is made to vibrate. The sand collects in the regions of least motion.
- In 1808, the German physicist Ernst F F Chladni had visited Paris where he had conducted experiments on vibrating plates, exhibiting the so-called Chladni figures.
- In the first place, Jenny produced both the Chladni figures and Lissajous figures in his experiments.
- The symmetry of the Chladni figures is partially determined by the symmetry of the plates chosen.
Early 19th century: named after Ernst Chladni (1756–1827), German physicist.
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Syllabification: Chlad·ni fig·ures
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