The airplane has redefined the way in which people travel, conduct commerce, spend their leisure time, and wage war.From the Wright brothers' wood-and-fabric Flyer to the modern jet aircraft, the airplane has evolved in countless ways as its many uses have unfolded.The development of safe and efficient air travel required solving multiple engineering riddles about aerodynamics, control, propulsion, and structures. Airplanes shows how the solutions to these riddles have helped spur dramatic changes in the world's social and cultural life.