News tagged with tellurium

One material, two types of magnetism

When placed next to a bar magnet, an aluminum ball draws gently towards the magnet. In contrast, a ball made of silver moves out of the magnetic field. The mechanisms underlying these different behaviors ...

Nov 22, 2012 4.8 / 5 (6) 7 | with audio podcast

Critical minerals ignite geopolitical storm

The clean energy economy of the future hinges on a lot of things, chief among them the availability of the scores of rare earth elements and other elements used to make everything from photovoltaic panels and cellphone displays ...

Oct 10, 2011 4 / 5 (2) 1