Jules Antoine Lissajous

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Jules Antoine Lissajous
Jules Antoine Lissajous, date and photographer unknown
Born(1822-03-04)March 4, 1822
Versailles, France
DiedJune 24, 1880(1880-06-24) (aged 58)
Plombières-les-Bains, France
Known forLissajous figures
Scientific career
FieldsMathematics

Jules Antoine Lissajous (French pronunciation: [ʒyl ɑ̃twan lisaʒu]) (March 4, 1822 in Versailles – June 24, 1880 in Plombières-les-Bains) was a French physicist, after whom Lissajous figures are named. Among other innovations, Lissajous invented the Lissajous apparatus, a device that creates the figures that bear his name. In it, a beam of light is bounced off a mirror attached to a vibrating tuning fork, and then reflected off a second mirror attached to a perpendicularly oriented vibrating tuning fork (usually of a different pitch, creating a specific harmonic interval), onto a wall, resulting in a Lissajous figure. This led to the invention of other apparatus such as the harmonograph.

See also

External links

  • O'Connor, John J.; Robertson, Edmund F., "Jules Antoine Lissajous", MacTutor History of Mathematics Archive, University of St Andrews
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