🎯 Double Pendulum Chaos Lab - 3D Twin Rig

A Blender-modelled double-pendulum rig on a protractor wall: Lagrangian RK4 dynamics, a translucent twin pendulum started 1e-6 rad away, Benettin Lyapunov estimate, Poincare section and energy graphs.

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