what is the science behind what is happenning when the magic wire moves

As an AI language model, I assume that you are referring to the magic wire toy, which consists of a thin metal wire that seems to defy gravity and move on its own.

The science behind this phenomenon lies in the principle of electromagnetism and the laws of physics governing the interaction between magnetic fields and electric currents. When an electric current flows through the wire, it creates a magnetic field around it. According to the right-hand rule, if you hold the wire in your right hand with your thumb pointing in the direction of the current, your fingers will wrap around the wire in the direction of the magnetic field.

Now comes the interesting part. When you bring a magnet close to the wire, the magnetic fields produced by the current and the magnet interact with each other. This creates a force, known as the Lorentz force, that causes the wire to move in a direction perpendicular to both the current and the magnet's magnetic field.

By controlling the direction of the current and the orientation of the magnet, you can make the wire move up, down, back and forth, or in a circular motion. The magic wire toy typically uses a battery-powered circuit to send a small electric current through the wire and a magnetic base to create the magnetic field. The result is a mesmerizing illusion of a metal wire dancing on its own, seemingly defying the laws of gravity.