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 pollution is a major environmental ...

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 ...

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 ...

Scientists from Chiba University in Japan and Shanghai Jiao Tong University in China studied the serrations on the leading edges of owls’ wings, gaining new insight into how they work to make the bird ...

Moving silently through the air is not just for the birds. Wind farms inspired by the stealthy flight of owls could generate more energy without annoying those who live nearby, say researchers.

AMES, Iowa – Anupam Sharma pulled an accordion folder from the bookshelf above his Iowa State University desk. Inside was the carefully collected and preserved wing of a short-eared owl. Here, he said ...

In a comprehensive study conducted in Nova Scotia, researchers explored the use of owl decoys and predator sound recordings ...