notably thin-walled ring magnets that proved ideal for use in small motors. The development of neodymium–iron–boron permanent magnets has allowed the miniaturization of motors and hard disk ...

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 ...

But rather than using alternating currents through large inductors, [Tim] put 40 neodymium magnets with alternating polarity around the circumference of a large MDF disk. When driven by a drill ...

SAFETY: Neodymium magnets are surprisingly powerful when they ... plastic pipe of similar dimensions to the copper pipe to use as a comparison If you have a plastic pipe, hold it vertically ...

This is why iron and neodymium magnets are used in everything ... Convert electrical signals into sound using magnets. MRI Machines: Use powerful magnetic fields to scan inside the human body.

Two of the same poles will repel. We use magnets everyday on many things, from the toys you play with, to the things you might find at home, to really big magnets in this scrap metal yard.

THERE seems to exist a discrepancy between the measured value of the alpha-decay half-life of natural samarium (samarium-147) and the theoretical half-life calculated from its measured alpha energy 1.

MP Materials has launched domestic production of a rare-earth magnet it intends to mass produce for General Motors and other U.S. customers, in what it frames as a move towards import substitution ...