Attention Deficit Disorder Prosthetic Memory Program

Lissajous Curve

ADDPMP586

The graph of a system of parametric equations which describe complex harmonic motion. This family of curves was investigated by American mathematician Nathaniel Bowditch in 1815, and later detailed in 1857 by French physicist Jules Antoine Lissajous, hence its name.

A Lissajous curve is used in experimental tests to determine if a device may be properly categorised as a memristor. It is also used to compare two different electrical signals, a known reference signal and a signal to be tested. The curves could be generated mechanically by means of a harmonograph or using an oscilloscope.

In the 1960s and 1970s, Lissajous figures were sometimes displayed on oscilloscopes meant to simulate high-tech equipment in science-fiction TV shows and movies. 

In popular culture, the title sequence by John Whitney for Alfred Hitchcock’s 1958 feature film Vertigo is based on Lissajous figures. The German Dadaist artist Max Ernst also painted Lissajous figures directly by swinging a punctured bucket of paint over a canvas in the early 20th century.

Lissajous Curve - © Attention Deficit Disorder Prosthetic Memory Program
Lissajous Curve - © Attention Deficit Disorder Prosthetic Memory Program
Lissajous Curve - © Attention Deficit Disorder Prosthetic Memory Program
Lissajous Curve - © Attention Deficit Disorder Prosthetic Memory Program
Photo Calibration Targets - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP262
Photo Calibration Targets
Ant Mill - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP420
Ant Mill
Axis of Evil - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP082
Axis of Evil
Tardigrades In Outer Space - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP395
Tardigrades In Outer Space
844-NEED-SCI - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP539
844-NEED-SCI
The Damned Cast Into Hell - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP040
The Damned Cast Into Hell
Baikonur Cosmodrome - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP039
Baikonur Cosmodrome
Get Tough - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP307
Get Tough
Halloween by Ken Werner - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP276
Halloween by Ken Werner
Pickpocket - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP143
Pickpocket
Kalinin K-7 - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP255
Kalinin K-7
Philadelphia Experiment - © Attention Deficit Disorder Prosthetic Memory Program
ADDPMP461
Philadelphia Experiment

You are using an outdated browser.
Please upgrade your browser to improve your experience.