Magnetism is a force of nature produced by moving electric charges. Sometimes these motions are microscopic and inside of a material known as magnets. Magnets, or the magnetic fields created by moving ...

Magnets are a lot more than just refrigerator decorations or components in science kits. These fascinating objects, which have been known since ancient times, are central to a wide array of ...

Schematic of two magnetic layers composed of permanent magnets. The magnets in the upper layer are free to rotate, while those in the lower layer are fixed. When the layers move relative to each other ...