In the past few years, scientists have also discovered magnetic polymers, or plastic magnets. Some of these are flexible and moldable. However, some work only at extremely low temperatures, and others pick up only very lightweight materials, like iron filings. Contents Making Magnets: The ...
Neodymium magnets: These contain iron, boron and the rare-earth element neodymium, and as of this writing, they are the strongest commercially available magnets. They first appeared in the 1980s after scientists at the General Motors Research Laboratories and the Sumitomo Special Metals Company publi...