Real Science of Human Flight e-bog

Humans have always wanted to fly. Fictional heroes can do it with a leap and a bound! They may rescue someone falling from the sky, soar to the top of a tall building, or zip around the globe faster than a rocket. How do they get the job done, and how can humans do it themselves one day? Learn the real-life science behind the superpower and what scientists are doing to make that power a reality.