Bram it down

摘要

I SEEM TO SPEND half of my time convincing people that I am not mad," John C Mankins explains. He certainly fulfils some of the basic criteria: goatee beard, glasses and a penchant for outrageous ties. But that belies the 25-year Nasa veteran's pedigree and the genius of his ideas. For Mankins believes that we can solve the burgeoning energy crisis by beaming solar power from space.