⚡ Van de Graaff Generator — 2D Sphere Voltage and Spark Cycle

2D companion of the Van de Graaff sim: terminal capacitance 4 pi e0 R, RC charging with humidity leakage and corona, air breakdown at the gap, spark energy and period, with an analytic charging-time check.

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