Home▸Physics & Mechanics▸Harmonic Countdown: Synchronized Pendulums

Harmonic Countdown: Synchronized Pendulums (3D)

Equal-length pendulums hang from a real compliant support beam in 3D — their reaction forces move the beam, and the beam's motion feeds back into every pendulum, so they gradually lock into phase or anti-phase exactly like Huygens' coupled clocks.

Physics & Mechanics3DModerate60 FPS📱 Mobile-adapted⇄ 2D version

Details

CategoryPhysics & Mechanics

RenderingThree.js · WebGL

DifficultyModerate

Target FPS60

ControlsSliders for pendulum count, support mass (coupling strength), support damping, pendulum damping and initial phase spread; pause/reset transport; click any bob to kick it and watch it resynchronize; drag to orbit, scroll to zoom.

coupled-oscillatorshuygens-synchronizationpendulumphysicsnew-year

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⚙ Under the hood

Equal-length pendulums hanging from a shared, spring-mounted support beam gradually lock into phase or anti-phase as their reaction forces couple through the beam's own motion — the real Huygens coupled-clocks effect in 3D.

coupled-oscillatorshuygens-synchronizationpendulumphysicsnew-year

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