Lissajous curve
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A Lissajous curve, also known as Lissajous figure or Bowditch curve, is the graph of a system of parametric equations
An approximate Lissajous curve, made by releasing sand from a container at the end of a Blackburn pendulum
Lissajous figure on an oscilloscope, displaying a 1:3 relationship between the frequencies of the vertical and horizontal sinusoidal inputs, respectively. This particular Lissajous figure was adapted into the logo for the Australian Broadcasting Corporation
Jules Antoine Lissajous
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Jules Antoine Lissajous 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
Lissajous curve
…different angular frequency (a and b). The resulting family of curves was investigated by Nathaniel Bowditch in 1815, and later in more detail in 1857 by Jules Antoine Lissajous (for whom it has been named). Such motions may be considered as a particular kind of complex harmonic motion. The appearance of the figure is sensitive…
Jules Antoine Lissajous, date and photographer unknown