The edges of the owl wings are flexible and porous. It enables a totally silent flight to better surprize prays.
In the field of transports, the owl flight is one of the most silent amongst birds. This animal eliminates any sound that could alert its prays using several techniques: its extra large wings need less flaps, its paws and wings are covered with very soft down feathers that ansorb any vibration. Lastly, at the end of each wings, saw-tooth feathers break noisy turbulences and reduce noise extensively. Whether it is for train or plane sounds, a research center is dedicated to sound reduction technologies created in Southampton. Covering tests are being undertaken for train and will be tested for the Airbus A380.
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