Ada Twist, scientist: the why files

"Why do airplanes look the way they do? Why can't birds fly when they're first born? And why do some paper planes fly farther than others? Discover everything there is to know about flight from Ada Twist, Scientist--from information about creatures that fly, to the history of aircrafts, to modern technology that allows us to soar through the air faster than ever!"--Provided by publisher.