CLASSIC REINVENTED

Harmonograph

Two pendulums. Infinite beauty.
Drag to perturb. Tune the frequencies.

Pure JavaScript • no libraries • nothing stored
THE DRAWING
Click and drag to nudge the pendulums
Mouse drag = perturbation • Space = pause
t = 0.00
PENDULUM X
FREQUENCY3.00
AMPLITUDE180
PHASE0.00
DAMPING0.0008
PENDULUM Y
FREQUENCY2.00
AMPLITUDE180
PHASE1.57
DAMPING0.0008
Classic ratios produce the most hypnotic figures.
The path is the sum of two damped harmonic oscillators. Small changes in ratio create entirely new universes.