A new type of hydrogen fuel cell uses bacteria to provide variable buoyancy, allowing an autonomous ocean sensor to surface and dive with ease. Rather than harvesting electricity from microbial metabolism, the system harvests the metabolic byproducts themselves. Read: gas.
The Naval Research Laboratory is calling the device a Zero Power Ballast Control, because it doesn’t require using any fuel source to move up and down in the water column.
Soon, when you sleep through your Monday morning alarm, it may be Uncle Sam’s fault. Federal officials are considering an experiment on the nation’s electrical grid that could interrupt the way your appliances tell time — from your bedside alarm to your automatic coffeemaker.
Private companies and hospital researchers are increasingly making strides toward developing an artificial pancreas, supplanting insulin injections and pinpricks for patients with diabetes. Such a system would mimic the functions of a healthy pancreas, delivering insulin and monitoring blood sugar according to a computer’s careful calculations.
A targeted snip through DNA’s double helix can take out a mutated gene that causes hemophilia, curing mice of the disease, a new study found. It’s the first study to use this form of genome editing in a living animal, and it could have implications for genetic treatment of other diseases, notably AIDS.
Scientists say the research is a major step forward for gene therapy, which has long promised to cure disease by editing genetic sequences.
A new acoustic invisibility cloak made of a plastic metamaterial makes objects invisible to sound waves, researchers say. It could be used to shield ships from sonar, or build better soundproof walls for concert halls and other spaces. We’ve seen this idea before, but now Duke University researchers have actually built it.
Hovering landers or drones look as though they’re suspended in the air, because you can’t see the vortices caused by the propellers or the heat emitted by the thruster, or whatever mechanism enables the hovering. Well, here you can. And it proves that the act of hovering is anything but delicate.
Patients who consumed only 600 calories a day for two months were able to reverse their Type 2 diabetes, according to a groundbreaking British study. The research, involving just 11 patients, suggests a very low-calorie diet can remove fat that clogs the pancreas, allowing normal insulin secretion to be restored, according to Newcastle University.
Seven of the 11 patients remained free of diabetes three months after the study, researchers said.
Only a lucky few have ever seen what Earth looks like from space, with human impacts all but invisible and the blackness of space just beyond the horizon. Soon, everyone will have a view, via the Internet and a pair of cameras flying on the International Space Station.
Drivers of Volkswagens could soon forget about fender benders or lane drifting on the Autobahn — their cars will take care of those little problems.
The German automaker debuted a new "Temporary Autopilot" (TAP) program that can control the car semi-automatically at speeds up to 80 mph. It combines existing driver-assist functions found in many cars nowadays, like adaptive cruise control and side monitoring for safer lane-changing, with a radar system, laser scanner and ultrasonic sensors.
Robots, nanotechnology and other manufacturing of the future can reposition the U.S. as a global technology leader and revitalize the nation’s flagging economy, President Obama said Friday morning. In a visit to Carnegie Mellon University, Obama announced a $500 million investment in advanced technologies, including $70 million for a national robotics initiative.