June 17, 2008
As you can see from these videos, these are very powerful magnets, which rekindles the latent fascination we all had as kids with magnets.
Niobium, the metal used in these magnets is a rare element, used in anything requiring physiologically inert properties such as pacemakers. Niobium also becomes a superconductor when lowered to cryogenic temperatures and since Niobium has the largest magnetic penetration depth of any element, it’s capable of sustaining exceedingly strong magnetic fields.
Other more consumer related uses includes the use of Niobium magnets in therapeutic magnetic mattress overlays, used by some arthritis and rheumatism sufferers.