The hummingbird is named after the humming sound it makes when it hovers in front of flowers to feed. But only now has it become clear how the wing generates the hummingbird's namesake sound when it is beating rapidly at ...
Plants & Animals
Mar 16, 2021
0
1623
Compared to birds and insects, bats have heavy wings for their body size. Those comparatively cumbersome flappers might seem a detriment to maneuverability, but new research shows that bats' extra wing mass makes possible ...
Plants & Animals
Nov 16, 2015
0
80
A new instrument may help to carry out tests to optimize miniature drones, in attempts to assess their flight performance more precisely. A team from Stanford University have shown how flapping wings enable flying animals ...
Bats are uniquely able to stretch and store energy in their bicep and tricep tendons during take-off and climbing flight, giving them an extra power boost. A new study on fruitbats, to be presented at the meeting of the Society ...
Plants & Animals
Jul 5, 2013
1
0
As of today, the Wikipedia entry for the hummingbird explains that the bird's flight generates in its wake a single trail of vortices that helps the bird hover. But after conducting experiments with hummingbirds in the lab, ...
General Physics
Feb 25, 2013
0
1
The strong, flapping flight of bats offers great possibilities for the design of small aircraft, among other applications. By building a robotic bat wing, Brown researchers have uncovered flight secrets of real bats: the ...
Robotics
Feb 21, 2013
0
0
How well do flying fish fly? This is the question that puzzled Haecheon Choi from Seoul National University, Korea. Measuring aerodynamic forces on dried darkedged-wing flying fish in a wind tunnel, Choi and Hyungmin Park ...
Plants & Animals
Sep 10, 2010
1
0
(PhysOrg.com) -- Engineers at Harvard University have created a millionth-scale automobile differential to govern the flight of minuscule aerial robots that could someday be used to probe environmental hazards, forest fires, ...
Engineering
Sep 6, 2010
3
0
Engineers at Harvard University have created a millionth-scale automobile differential to govern the flight of minuscule aerial robots that could someday be used to probe environmental hazards, forest fires, and other places ...
Engineering
Sep 2, 2010
6
0
Once thought to be "evolutionary leftovers", new research has shown that ostriches in fact use their feathered forelimbs as sophisticated air-rudders and braking aids.
Plants & Animals
Jun 30, 2010
1
0
