The stratosphere is the highest layer of Earth's atmosphere where aircraft can still fly. The density of the air is just high enough here to generate lift on a wing or buoyancy on a balloon, so designing any stratospheric aircraft is a delicate technological balancing act for th…
The stratosphere is the highest layer of Earth's atmosphere where aircraft can still fly. The density of the air is just high enough here to generate lift on a wing or buoyancy on a balloon, so designing any stratospheric aircraft is a delicate technological balancing act for th…
Psychology and human performance in space programs
In this entertaining history of the jetliner, Jay Spenser traces aviation's challenges from the outset, and follows the flow of the simple yet powerful ideas that led us to defy gravity. Here are the pioneers?innovators such as Otto Lilienthal, Igor Sikorsky, Louis Bl?riot, Hugo…