Terradynamics: Technique could help designers predict how legged robots will move on granular surfaces (w/ video)
Using a combination of theory and experiment, researchers have developed a new approach for understanding and predicting how small legged robots – and potentially also animals – move on and interact with ...
Human-powered helicopter wins Sikorsky prize
A Canadian-built helicopter that is powered by a human riding a bicycle has become the first winner of a decades-old $250,000 engineering prize, the US awarder said Friday.
German engineers mimic humpback whale to increase helicopter stability
3 ultra-efficient cars win $10M innovation award (w/ Video)
(AP) -- An ultralight, gas-powered car that can get 102 miles per gallon is among the winners of the $10 million Automotive X Prize, a contest to develop highly efficient, production-ready vehicles.
MASSIVE advances in aerodynamics
Engineers are closer to understanding, and therefore manipulating, invisible aerodynamic drag forces, that cause an estimated 50 per cent of transportation fuel to be lost before we can use it.
DARPA releases cause of hypersonic glider anomaly
(AP) -- An unmanned hypersonic glider likely aborted its 13,000 mph flight over the Pacific Ocean last summer because unexpectedly large sections of its skin peeled off, the U.S. Defense Advanced Research ...
Study shows hovering hummingbirds generate two trails of vortices under their wings, challenging one-vortex consensus
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 hummi ...
The secrets of owls' near noiseless wings
Many owl species have developed specialized plumage to effectively eliminate the aerodynamic noise from their wings – allowing them to hunt and capture their prey in silence.
Petroleum use, greenhouse gas emissions of automobiles could drop 80 percent by 2050
A new National Research Council report finds that by the year 2050, the U.S. may be able to reduce petroleum consumption and greenhouse gas emissions by 80 percent for light-duty vehicles—cars and small trucks—via a combination ...
Researchers build robotic bat wing (w/ video)
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 ...
Dinosaur wind tunnel test provides new insight into the evolution of bird flight (w/ Video)
A study into the aerodynamic performance of feathered dinosaurs, by scientists from the University of Southampton, has provided new insight into the evolution of bird flight.
Robo-bats with metal muscles may be next generation of remote control flyers
Tiny flying machines can be used for everything from indoor surveillance to exploring collapsed buildings, but simply making smaller versions of planes and helicopters doesn't work very well. Instead, researchers ...
Muscle power: Bats power take-off using recycled energy
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 ...
Student team unveils world's first solar-powered family car
The Solar Team Eindhoven (STE) of TU/e in the Netherlands presented the world's first solar-powered family car today. 'Stella' is the first 'energy-positive car' with room for four people, a trunk, intuitive ...