Part 3/9:
Among the fascinating creatures of the avian world is the owl, a master of silent flight. Unlike conventional aircraft that create excessive noise during takeoff and landing, owls glide almost soundlessly. In 1934, British pilot Robert Rule Graham delved into the mechanics of owl flight, identifying key structural features: the innovative comb-like structure at the leading edge of the wings, a velvety covering of soft feathers, and a ragged fringe on the wing's trailing edge.