Wizards, Aliens, and Starships

“A great book by itself or as a starting point for exploring the physics of space exploration as well as the classics in science fiction.” —Robert Schaefer,  New York Journal of Books From teleportation and space elevators to alien contact and interstellar travel, science fiction and fantasy writers have come up with some brilliant and innovative ideas. Yet how plausible are these ideas—for instance, could Mr. Weasley’s flying car in the Harry Potter books really exist? Which concepts might