[ http://www.acme.com/java/software/SplineFun.html Java Software - Spline fun
| http://accessarts.org/ArtKids/ArtCades/ ArtCade
The net's best place for playing, learning, and creating. Cool interactive art activities, and a whole lota' other stuff! Kids, parents and teachers - also use the Art Teacher.
| http://www.javacats.com/US/search/dir037.html Digital Cats
The two pendulum harmonograph draws attractive patterns that arise from drawing the relative path traversed by two swinging masses as their motion is slowly damped. The resulting figures are called harmonograms or sometimes a Lissajous curve.
| http://www.tip.net.au/~apurdam/harmonograph/harmonograph.html Emulation of Questacon's Harmonograph
Java applet by Andrew Purdam.
| http://www.tip.net.au/~apurdam/harmonograph/harmonophysics.html The Physics of the Harmonograph
The Drawing Board consists of a marking pen that remains stationary and a platform that swings beneath the pen, acting as a pendulum. As the platform swings, the pen marks a sheet of paper that is fastened to the platform, generating beautiful repetitive patterns, which grow smaller with each repetition. These colorful designs contain hidden lessons in physics.
This is a computer implemented version of the marvelous spirograph of your childhood. Spirograph draws some very pretty graphic figures from mathematical parameters that you enter or you can select to draw patterns at random. No mathematical knowledge is needed to set the parameters. You can save the patterns you create, print them out or import old patterns.
| http://www.cg.cs.tu-bs.de/schenk/spiro.html Beispiele aus dem Super-Spirograph-Praktikum
Some fine computer-generated spirographs.
| http://www.math.tamu.edu/~jmorgan/Right_Angle_Nov_95/Spirograph.htm How Does a Spirograph Work?