Photo: Quieter Aircraft to Take Cues From Birds, NASA Expert Says



A passenger jet takes off from an airport near the Luxor Hotel in Las Vegas, Nevada. New bird-inspired technologies are helping engineers design quieter aircraft, according to a NASA acoustics expert. The chevron nozzle, for example, is attached to the back of a jet engine, where it mimics the serrated pattern of some birds' wings to reduce turbulence and thus dampen noise.

Photograph by Maria Stenzel/NGS


NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS

ADVERTISEMENT

NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY

50 Drives of a Lifetime

Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.