To Silence Wind Turbines and Airplanes, Engineers Are Studying Owl Wings
No one knows exactly how the nocturnal hunters manage their whisper-soft flight, yet it’s inspiring the design of quieter airplanes, fans and wind turbines. Every owl fancier has a story of the first time they heard an owl — or, rather, didn’t hear one. It’s unforgettable to see an enormous bird, whose wingspan can reach…