tontonan
Bio-Inspired Design: Tapping the Silent Flight of Owls
Inspired by the silent flight of the owl
What Birds Have Taught Us In Aviation
Who WINS the SILENT Propeller WAR?
OWL BIOMIMICRY: The Evolution & Emulation of Silence
Airplane Ambience | White Noise + Ambient Music | 4 Hours
Small finlets on owl feathers point the way to less aircraft noise
AMAZING Micro XXS 'Eta' INDOOR POWERED GLIDER: Daniel Hör (Picasso of Depron)