One of the most fascinating facts about flying is that while almost everybody does it, relatively few people really understand how it works. The idea that a hulking Boeing 747 weighing 200 tonnes could lift off the ground and fly several thousand miles seems to many an impossible occurrence. David Blatner enlightens us by teaching us to believe in the unseen; the invisible air molecules that act like a liquid to give the aircraft flight. Full of anecdotes and eye-opening statistics, this title should tell you all you could possibly want or need to know about flying.