Fruit trees and ‘generational learning’ turn El Cajon into a parrot paradise as temperatures drop
The squawking usually begins just past 4:30 p.m. this time of year, when the sun begins to hang low in the sky. Just a few at ...
New Scientist on MSN12d
Robotic pigeon reveals how birds fly without a vertical tail fin
A flying robot uses its bird-like tail to maintain stability in flight – a technique that could enable more aerodynamic ...
Teaching a drone to fly without a vertical rudder
Most airplanes in the world have vertical tails or rudders to prevent Dutch roll instabilities, a combination of yawing and ...
techxplore12d
Robotic model with real pigeon feathers can fly like a bird
Have you ever wondered why an airplane has a vertical tailfin? The plane needs it to stabilize its flight. Since flying ...