The concept of the airplanehas only been around for two centuries. It wasn’t until the turn of the nineteenth century that an English baronet from the gloomy moors of Yorkshire conceived a flying machinewithfixed wings, apropulsion system, and movablecontrol surfaces. This was the fundamental concept of the airplane. Sir George Cayley also built the first true airplane — a kite mounted on a stick with a movable tail. It was crude, but it proved his idea worked, and from that first humble glider evolved the amazing machines that have taken us to the edge of space at speeds faster than sound.