🕯 Christmas Pyramid: Candle Heat, Chimney Flow and Fan Torque Lab

Model a candle-driven Christmas pyramid: convective heat sets the chimney air speed (cube-root law), slanted fan blades turn it into torque, and friction and inertia decide the steady rpm. Includes five in-page numerical checks.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install