Скачать или смотреть How do birds move air in flight? | Science News

Using a high-speed camera, scientists captured the swirling vortices produced by a slowly flying bird. Surprisingly, they found that the vortices rapidly dissipated. The unexpected effect suggests that scientists need to rethink methods for calculating the lift produced under such conditions. Read more: http://ow.ly/L6CJ306QjmB

CREDITS

Story
Emily Conover

Production
Helen Thompson

Video
Eric Gutierrez, Lentink Lab, Stanford University
http://lentinklab.stanford.edu/welcom...

Music
"The Ride of the Valkyries" by Richard Wagner
Edison Records (Public Domain)
https://archive.org/details/EDIS-SRP-...

E. Gutierrez et al. "Lift calculations based on accepted wake models for animal flight are inconsistent and sensitive to vortex dynamics." Bioinspiration and Biomimetics. Published online December 6, 2016.