Metals are the only substances that are magnetic. But some metals are magnetic and some are not. The most common magnetic metal is iron. You don't see too many objects made of pure iron but you do see ...

Krissy Worth & John Krekelberg with Hands On! show us a couple of fun experiments featuring different aspects of magnets! Please take a moment and watch the video to learn more about these ...

Other inventors experimented with sending messages using electrical signals, but his was the first to successfully combine a simple code with ... Electric currents and magnets can exert a force ...

A coil with an iron core is called an electromagnet. The iron core increases the coil’s magnetic field strength. A simple electromagnet is made by coiling wire around an iron nail. An iron core ...