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Haunted Pendulum Wave

A row of 3D pendulums with slightly different lengths, each swinging at its own real period T=2π√(L/g) — watch the row drift from order into apparent chaos and back into sync.

Physics & Mechanics3DEasy60 FPS📱 Mobile-adapted⇄ 2D version

Details

CategoryPhysics & Mechanics

RenderingThree.js · WebGL

DifficultyEasy

Target FPS60

ControlsSliders for pendulum count, resync cycle time, gravity, damping and initial swing amplitude; a moonlight-glow toggle; pause/reset transport; a ghostly-gust button that kicks every pendulum with a random impulse; and click-to-push on any bob (raycast) that gives it an instant angular-velocity kick.

pendulumwaveresonancephysicshalloween

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⚙ Under the hood

Interactive 3D pendulum-wave demonstration — a row of pendulums with slightly different real lengths, each with its own period T=2π√(L/g), drifts out of phase into an apparent traveling wave and periodically resynchronizes.

pendulumwaveresonancephysicshalloween

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install