Point load simulator:

This thing simulates the movement of point loads according to Coulomb's law. All loads have mass = 1, to make simulation easier to understand in context of charges.

Use mouse left button to add a load, right click on a load will delete it, you can also drag it, and while dragging you can also change its charge using mouse wheel.
Have fun!

Appearance settings: Color density: Color function cut: Display radius:

Stop Delete all Simulation settings: Time fragment(dt): Calculations per frame: Frame every: ms Collision epsilon: Recompute charges after collision Recompute velocities after collision

Box settings: Size: x Scale Wall restitution: 0 1 Misc settings: Mouse wheel load 1/delta: Add charges in range: -