Alfred Lothar Wegener & Harry Fielding Reid had at least four characteristics in common. First, they were trained scientists: Wegener in astrology, Reid in physics. Second, they were interested in a different science: both liked glaciers and geology, and Wegener studied weather, and Reid in earthquakes and tsunamis. Third, each developed a new theory: Wegener thought of continental drift, and Reid elastic rebound. Fourth, they were not just scientists ? they were adventurers, Wegener went several times to Greenland (and died there), and Reid went to San Francisco, Puerto Rico and other places.