Newton's Nightmare

Lenz's Law & Eddy Currents 3D Simulator

Simulation Controls

Animation Rate 1.0x

Visualizers

The Physics

Faraday's Law: A moving magnet creates a changing magnetic flux through the metal tube, inducing circular currents called Eddy Currents.

Lenz's Law: The induced currents generate their own magnetic field that opposes the change that created them.

Newton's Nightmare 3D Sim - Creative Commons 2026
Plot of velocity vs time Real-time recording of kinematic values as the magnet descends.