Not to diminish the work of the scientists, but I think the relevant part of the article is : "They found that when the flakes are cooled to 300 millikelvins (

Not to diminish the work of the scientists, but I think the relevant part of the article is : "They found that when the flakes are cooled to 300 millikelvins (about -273 degrees Celsius), the material turns into a superconductor" And the material is a particular form of graphite. For me, the grail (I know it's a dream) would be a superconductor that works at ambient temperature and pressure.