A view shows one of the superconductor coils which are assembled to form the giant magnet within which the magnectic field is 11.7 T., the core component of the most powerful MRI (Magnetic Resonance Imaging) scanner in the world to be used for human brain imaging at the Neurospin facility of the CEA Saclay Nuclear Research Centre near... Read more Aug 3 (Reuters) - Last week, two papers by South Korean scientists made an extraordinary claim that sparked a social media frenzy and pushed up prices of some stocks in China and South Korea: the discovery of a practical superconductor....