Arthur C. Clarke is too well known, too written about to warrant anything more than a thumbnail sketch here. Indeed, Bob Rickards wrote about his Forteanism in the January 2015 Fortean Times.
Born 16 December 1917 in Somerset, England, he had an early interest in astronomy and science fiction, eventually becoming one of the early participants of British fandom and a teenage member of the British Interplanetary Society. He served in the RAF during World War II, working on radar, and afterwards graduated from King’s College in London. Clarke did legitimate scientific work—contributing to the idea of geostationary satellites—but made his name as a scientific writer. He was known for being boisterous and opinionated, picking fights and quickly forgetting about them, too.