KALAMATIYA—Indian Ocean, Sri Lanka where birds from all over the world go on winter holiday. When it comes to life drawing nothing beats birds. They won't stand still for two seconds and when they move, the metamorphoses of their shapes are astounding. I showed these drawings to my engineering students at the International Space University in Strasbourg, as a way of explaining that this is where it starts, our human fascination with flight and bird envy. But the true magic is not in the wings as legend would have it. It is in the legs, the most magnificent landing gear that works perfectly every time.