Many species of owl are able to hunt in effective silence by suppressing their noise at sound frequencies above 1.6 kilohertz (kHz) - over the range that can be heard by humans. A team of researchers ...

Many owl species have developed specialized plumage to effectively eliminate the aerodynamic noise from their wings -- allowing them to hunt and capture their prey in silence. A research group is ...

Owl-inspired innovations can reduce noise by as much as 10 decibels, similar to the difference in noise between a passing truck and a passing car. Ed MacKerrow / In Light Of Nature Every owl fancier ...

WASHINGTON, January 18, 2022 -- Trailing-edge noise is the dominant source of sound from aeronautical and turbine engines like those in airplanes, drones, and wind turbines. Suppressing this noise ...

The silent flight of owls could help suppress aircraft and turbine noise. A team from Chiba University in Japan has studied the unique features of owl wings that allow them to fly noiselessly. The ...

Following years of research and development, Siemens announced a breakthrough in low-noise wind turbine blade design. The new DinoTail technology is an aeroacoustic noise augmentation tool patterned ...

The Great Grey Owl practices tireless hunting efforts. This has to do with the owl’s decision not to migrate, but instead to remain in the same location year-round. Consequently, during the winter, ...

The combed-teeth structure of Siemens’ new low-noise DinoTail aerodynamic blade add-on mimics an owl wing’s trailing edge fringe. For comparison, an un-combed blade is shown on the left. Following ...