Many objects around you contain electromagnets. They are found in electric motors and loudspeakers. Electric bells like the ones used in most schools also contain an electromagnet. The slideshow ...

Magnetism and electromagnetism occur because of the magnetic fields around magnets and around electric currents. The fields can be investigated by the forces they exert on magnets and magnetic ...

The film discusses the historical development and principles of electrodynamics, starting with Luigi Galvani's chance discovery of electric current through the twitching of a frog's leg. It explains ...

UCLA Samueli engineers have developed a new tool to model how magnetic materials, which are used in smartphones and other communications devices, interact with incoming radio signals that carry data.

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...