Add Yahoo as a preferred source to see more of our stories on Google. A Chinese genius flexed his mathematical prowess by solving a problem that flummoxed a team of mathematicians with Ph.D.s for four ...

Po-Shen Loh is the Energizer Bunny of math. The Carnegie Mellon professor and entrepreneur also has a superpower elusive to many mere mortals: He sleeps on planes. This math evangelist uses Google ...