Lissajous figures
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Lissajous curve — In mathematics, a Lissajous curve (Lissajous figure or Bowditch curve) is the graph of the system of parametric equations:x=Asin(at+delta),quad y=Bsin(bt),which describes complex harmonic motion. This family of curves was investigated by… … Wikipedia
Lissajous , Jules Antoine — (1822–1880) French physicist Born at Versailles, Lissajous graduated from the Ecole Normale Supérieure in 1847 and then taught physics at a school in Paris. He was interested in finding a way of making sound vibrations visible. Chladni had… … Scientists
Lissajous figure — /lee seuh zhooh , lee seuh zhooh /, Physics. the series of plane curves traced by an object executing two mutually perpendicular harmonic motions. [1875 80; named after Jules A. Lissajous (1822 80), French physicist] * * * also called… … Universalium
Jules Antoine Lissajous — (March 4, 1822 June 24, 1880) was a French mathematician, after whom Lissajous figures are named. Among other innovations, Lissajous invented the Lissajous apparatus, a device which creates the figures that bear his name. In it a light is shone… … Wikipedia
Oscilloscope — This article is about current oscilloscopes, providing general information. For history of oscilloscopes, see Oscilloscope history. For detailed information about various types of oscilloscopes, see Oscilloscope types. Illustration showing the… … Wikipedia
History of the Australian Broadcasting Corporation — The history of the Australian Broadcasting Corporation spans from its origins as regulatory body to its expansion as a content provider in radio, television and new media.OriginsThe first public radio station in Australia opened in Sydney on 13… … Wikipedia
Harmonograph — A harmonograph is a mechanical apparatus that employs pendulums to create a geometric image. The drawings created typically are Lissajous curves, or related drawings of greater complexity. The devices, which began to appear in the mid 19th… … Wikipedia
Фигуры Лиссажу — замкнутые траектории, прочерчиваемые точкой, совершающей одновременно два гармонических колебания в двух взаимно перпендикулярных направлениях. Впервые изучены французским учёным Жюлем Антуаном Лиссажу. Вид фигур зависит от соотношения между… … Википедия
Bowditch, Nathaniel — born March 26, 1773, Salem, Mass., U.S. died March 16, 1838, Boston, Mass. U.S. mathematician and astronomer. He was largely self educated. After investigating the accuracy of J.H. Moore s The Practical Navigator, he produced a revised edition in … Universalium
Laser lighting display — A laser lighting display or laser light show involves the use of laser light to entertain an audience. A laser light show may consist only of projected laser beams set to music, or may accompany another form of entertainment, typically a rock… … Wikipedia
Nathaniel Bowditch — Bowditch is often credited as the founder of modern maritime navigation. Born March 26, 1773(1773 03 26) … Wikipedia
