Magnetic Sand: Physics Sandbox play online

Magnetic Sand is a unique particle physics simulation based on the behavior of the magnetic pendulum.

- Place magnets on the screen and watch the background adjust to show the magnetic field and its interaction with other magnets.

- Sand is pulled towards magnets and the center of the screen. Watch the intricate paths that sand can take before reaching a magnet (or sometimes never at all!)

- Try an infinite number of random/predefined magnet arrangements with the "Load" button.