"For a few decades, jet packs seemed to be everywhere: on Gilligan's Island, Lost in Space, Thunderball, and even the opening ceremony of the 1984 Olympics. Inventors promised we'd all be flying with them now, enabling us to zoom around effortlessly in the sky and getting us to work without traffic jams and trains. What happened to the jet pack? In 'The Great American Jet Pack, ' Steve Lehto gives us the definitive history of this and related devices, explaining how the technology arose, how it works, and why we don't have them in our garages today."--Publisher description.