“Samarium–cobalt magnets would have been wonderful for automotive use, but they were too expensive ... Sagawa’s sintering process made for stronger magnets, with twice the strength ...

Since their relatively recent appearance on the commercial scene, rare-earth magnets have made quite a splash in ... its magnetic properties were explored in the early 1970s and again in the ...

You can tell how old 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 January 2012 are magnetic. This is ...

advance the emerging technology of single-molecular magnets (SMMs). Today’s memory chips are still based on the same fundamental fabrication technology as when they were first developed in the ...

It would be made out of alternating mild steel and brass ... He decided that, all things considered, two 20 x 20 x 50 mm magnets were also handy. So he completed the drilling, and ground the ...