News tagged with flight speed

Researchers find critical speed above which birds- and drones- are sure to crash

The northern goshawk is one of nature's diehard thrill-seekers. The formidable raptor preys on birds and small mammals, speeding through tree canopies and underbrush to catch its quarry. With reflexes that rival a fighter ...

Technology / Computer Sciences

created Jan 19, 2012 | popularity 4.7 / 5 (6) | comments 1 | with audio podcast

Largest bird alters its foraging due to climate change

Paris/ Leipzig. Wandering albatrosses have altered their foraging due to changes in wind fields in the southern hemisphere during the last decades. Since winds have increased in intensity and moved to the ...

Biology / Ecology

created Jan 12, 2012 | popularity 2.5 / 5 (6) | comments 2 | with audio podcast

Pentagon successfully tests hypersonic flying bomb

The Pentagon on Thursday held a successful test flight of a flying bomb that travels faster than the speed of sound and will give military planners the ability to strike targets anywhere in the world in less than a hour.

Technology / Engineering

created Nov 17, 2011 | popularity 4.1 / 5 (21) | comments 180

Like birds in the sky: Green flight challenge competition, day two

On the second day of the CAFE Green Flight Challenge, sponsored by Google, planes competing in the challenge flew like birds in the sky to test the fuel efficiency of their aircraft. ...

Space & Earth / Space Exploration

created Sep 29, 2011 | popularity not rated yet | comments 0

DARPA releases video of HTV-2 hypersonic glider flight

An unmanned glider streaks over the Pacific Ocean at 20 times the speed of sound in a video released Thursday by a U.S. defense research agency experimenting with technology that could give the military the ...

Technology / Engineering

created Aug 25, 2011 | popularity 4 / 5 (24) | comments 66

Flight Artists film smallest insect in flight

The Flight Artists team from Wageningen University, the Netherlands, has been the first to make high-speed camera footage of parasitic wasps of about 1 mm wingspan.

Biology / Plants & Animals

created May 25, 2011 | popularity 5 / 5 (1) | comments 0

How do honeybees control their flight speed to avoid obstacles?

Unlike humans, bees have a dorsal visual field that enables them to avoid obstacles above their heads. Until now, it was not known whether this helped them to control their flight speed. Recent research by ...

Biology / Plants & Animals

created May 16, 2011 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Flight speed is affected by diet in early life

A good start in early life means everything, and not just for children cajoled into eating their vegetables. Zebra finches that grew up on a poor diet may catch up in weight and size, but become slower to ...

Biology / Plants & Animals

created May 10, 2011 | popularity 3 / 5 (1) | comments 0 | with audio podcast

New materials designed to deal with hypersonic and supersonic hot stuff (w/ Video)

University of Queensland researchers are testing new materials to withstand the extreme heat experienced by hypersonic vehicles in flight so they can fly for substantially longer.

Physics / Condensed Matter

created Dec 24, 2009 | popularity 4.2 / 5 (25) | comments 9

NASA Launches New Technology: An Inflatable Heat Shield

A successful NASA flight test Monday demonstrated how a spacecraft returning to Earth can use an inflatable heat shield to slow and protect itself as it enters the atmosphere at hypersonic speeds.

Space & Earth / Space Exploration

created Aug 17, 2009 | popularity 4.2 / 5 (5) | comments 0

Trading energy for safety, bees extend legs to stay stable in wind

New research shows some bees brace themselves against wind and turbulence by extending their sturdy hind legs while flying. But this approach comes at a steep cost, increasing aerodynamic drag and the power ...

Biology / Plants & Animals

created Jun 02, 2009 | popularity 5 / 5 (3) | comments 0