When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images/Nils Jacobi How do microchip cat flaps work? While regular pet doors let any ...

Engineering studies have investigated covert-inspired flaps for improving engineered wing performance, but have mostly neglected that birds have multiple rows of covert feathers. The Princeton team ...

The sight of birds soaring through the sky has inspired humans for generations before the invention of powered flight in the early 20th century. Still looking to learn from winged animals, a team of ...

Constantly increasing air travel has brought commercial airlines constantly increasing headaches. And control of the swift traffic aloft is only a part of the problem. With their high speeds and long ...

Engineers found a way to help airplanes avoid stall with lightweight plastic flaps that flutter with pressure changes. The flaps mimick a class of feathers that are key to birds' most daring aerial ...

Ahmed K. Othman, Girguis Sedky, Hannah Wiswell and Aimy Wissa (left to right) equipped the wings of an RC plane with covert-inspired flaps, and flew it at Princeton's Forrestal Campus to prove that ...