Permanent magnets — materials that create their own persistent magnetic field — are frequently used in most types of ...

These new iron-nitride magnets are stronger, cleaner to make, and made from domestic iron-salt waste and nitrogen. These new ...

Permanent magnets can come in lots of different shapes ... some coins are by testing them with a magnet. 5p and 10p coins made before January 2012 are not magnetic. 5p and 10p coins made after ...

Materials that can maintain a magnetized state by themselves without an external magnetic field (i.e., permanent magnets) are called ferromagnets. Ferroelectrics can be thought of as the electric ...

Experimenting on a metallic magnet made from the elements iron ... The new material was another breakthrough—a permanent magnet with higher coercivity, a measure of a magnet's ability to ...

It is not a toy, so do not purchase them if you are not familiar with them. Magnets made from ferroelectric materials are ideal for use in permanent magnets. Ferromagnetic materials include iron among ...

Luckily, there’s more than one way to make a magnet, and it may soon be possible to build permanent magnets as strong as neodymium magnets, but without any rare earth metals. In fact ...