Etiket: quieter
Owl wings lead to quieter windmills
The wings of owls inspire windmill designers. Owls fly almost silently, while windmills make a lot of noise. By including characteristics of the wings, the whooshing sound of the blades…
The wings of owls inspire windmill designers. Owls fly almost silently, while windmills make a lot of noise. By including characteristics of the wings, the whooshing sound of the blades…