Earth isn't the only place with seasons. Other planets and even very small celestial bodies can have them, too, as ESA's Rosetta probe has shown in its explorations of comet 67P/Churyumov-Gerasimenko. When the unmanned spacecraft went into orbit about the comet, it revealed that the southern hemisphere of the dumbbell-shaped nucleus is shrouded in a dark winter that lasts over five years and, according to data collected by the Rosettas's onboard spectrometer, hides ice in larger amounts than the rest of the comet.Read More
One of the more unpleasant aspects of army life has always been guard duty. It's also very labor intensive. In the US Army, it takes four to six soldiers standing for up to 12 hours to man a single perimeter weapons system. To free up personnel for more important duties, the Army is testing the Tower Hawk System, which uses tower-mounted, remote-controlled weapons for base perimeter security.Read More
To gain proficiency, pilots need realistic training, but they also need to avoid needless cost and risk. Real aircraft provide the most obviously realistic training, but they're dangerous in inexperienced hands. Meanwhile, simulators can reproduce much of the look and feel of actual flying without the danger of losing an aircraft or pilot, but they aren't as successful when it comes to complex maneuvers like aerial-refueling. To square the circle, NASA is developing a technology called Fused Reality, which uses a special headset that combines real flying in a real aircraft with an overlaid simulation.Read More
How do you tag a jellyfish? It may sound like a metaphor for frustration, but it's a question that's occupying a team of scientists at the Woods Hole Oceanographic Institution (WHOI). The team has developed a new technology called Integrated Tracking of Aquatic orGanisms (ITAG), which is designed to place instruments on squid, jellyfish, and other small invertebrates as a way to provide detailed information about the animals and their habitat.Read More
Warships are only as effective as far as they can see, so DARPA's Towed Airborne Lift Of Naval Systems (TALONS) research effort is aiming to extend their horizons by giving them a crow's nest 1,500 ft (457 m) tall by way of a towed parafoil. A TALONS prototype recently completed sea trials off the US East Coast as part of a project to provide ships of every size with better long-distance communications and situational awareness.
Powered prosthetic legs are a bit like supercars – they're brilliant pieces of engineering, but they need regular expert care to keep them at peak performance. That can be an expensive and time-consuming necessity, so biomedical engineer s at North Carolina (NC) State University and the University of North Carolina at Chapel Hill are developing an algorithm that automatically tunes artificial limbs while walking.
A real automotive rarity went under the hammer at Bonhams over the weekend with the only known 1905 Woods Queen Victoria Brougham selling for DKK632,500 (US$94,548). Part of the Frederiksen auction at Ebeltoft, Denmark on September 26, the electric vehicle acts as a window into the early days of motor cars when new technologies fought for supremacy on the roads and in the show rooms.Read More
Researchers at Rice University have discovered that a protein found in whale meat may hold the key to developing synthetic blood. The protein, called myoglobin, allows marine mammals to remain submerged at great depths for up to two hours and has an ultra-stable structure that could one day allow for the manufacturing of a blood substitute using bacteria as biofactories.Read More
According to Transport for London (TfL), the city's Underground carries 1.2 billion passengers a year over 402 km (250 mi) of track, with some stations handling 89 million passengers annually. That adds up to a fleet of trains covering 76.2 million km (47 million mi) and an energy bill that defines "enormous." In an effort to make the system greener and cheaper, the authority carried out a five-week trial of a regenerative braking system billed as a "world first" that could slice 5 percent off London Underground's energy bill and save up to £6 million (US$9 million) per year.Read More
On August 13, comet 67P/Churyumov–Gerasimenko and ESA’s unmanned Rosetta probe made their closest approach to the Sun. Both are now heading for the outer Solar System, but Rosetta still has secrets to reveal. One is that the comet has a daily water cycle that, according to the space agency, keeps it "alive."Read More
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