Jules Antoine Lissajous
French mathematician
Died when: 58 years 112 days (699 months)Star Sign: Pisces
Jules Antoine Lissajous (French pronunciation: [ʒyl ɑ̃twan lisaʒu]; 4 March 1822 in Versailles – 24 June 1880 in Plombières-les-Dijon) 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.
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