81946871
submission
Zothecula writes:
Drones are being utilized in everything from parcel delivery to search and rescue, but their limited flight times are restricting their ability to travel great distances or stay for extended periods of time in the field. Simply adding more batteries, however, affects flight characteristics and reduces the load the drone can carry. To help solve this problem, researchers at the Pohang University of Science and Technology (Postech) have created a miniature fuel cell they claim not only provides enough energy to keep a drone in the sky for over an hour, but may well find applications in powering everything from smartphones to cars in the not-too-distant future.
81911843
submission
Zothecula writes:
Dennis Aabo Sørensen may be missing a hand, but he nonetheless recently felt rough and smooth textures using a fingertip on that arm. The fingertip was electronic, and was surgically hard-wired to nerves in his upper arm. He is reportedly the first person in the world to recognize texture using a bionic fingertip connected to electrodes that were surgically implanted above his stump.
81881937
submission
Zothecula writes:
Besides having tentacles, squid and octopi are also both known for their color-changing skin. Well, soft-bodied robots may soon also share that attribute, thanks to research being carried out at Cornell University. Led by assistant professor Rob Shepherd, a team of grad students there has developed an electroluminescent rubber "skin" that not only emits light in different colors, but that can also do so while being stretched to more than six times its original length.
81778681
submission
Zothecula writes:
3D printers have opened up all kinds of possibilities when it comes to turning digital blueprints into real word objects, but might they also enable new ways to pilfer intellectual property? Amid all that mechanical whirring, these machines emit acoustic signals that give away the motion of the nozzle, new research has found. And by discreetly recording these sounds, scientists say it is possible for sneaky characters to deduce design details and reverse engineer printed objects at a later date.
81718559
submission
Zothecula writes:
With tens of thousands of miles of coastline and a recent spike in shark attacks, Australia is exploring some pretty imaginative approaches to ensuring the safety of its beachgoers. Magnetic barriers and shark-tracking phone apps are a few of the tech ideas that have been floated, and the state of New South Wales is now turning to drones to help do the job. It has launched a trial of unmanned shark-spotting aircraft, which will survey the coastline for predators lurking in shallow waters.
81496613
submission
Zothecula writes:
Researchers at the Karlsruhe Institute of Technology (KIT) have repurposed discarded apples to build cheap and high-performance sodium-ion batteries, making a green technology even greener. The advance could find use in grid storage and, after further development, compete with lithium-ion cells to power portable electronics and low-end electric cars.
81458393
submission
Zothecula writes:
Multipurpose sensors that are both flexible and wearable could one day be used for everything from monitoring the body's vital signs to changing the way we interact with computers. Working toward this goal, researchers in Saudi Arabia have used low-cost everyday items that you probably have laying around your house to develop a paper-based sensor that reacts to the same stimuli as human skin, such as pressure, touch and temperature.
81369047
submission
Zothecula writes:
Thumping out as many drum beats in 60 seconds may get you a podium spot at the annual World's Fastest Drummer competition, but we'll take the full kit virtuoso playing of Cozy Powell, Philthy Animal Taylor or Mitch Mitchell any day of the week. When trying to emulate the fastest or the greatest on your bedroom bin-bashers, though, you'd be forgiven for wishing you had a third arm. Georgia Tech Professor Gil Weinberg and his research team may have the answer to your prayers. They've developed a drumstick-wielding wearable robotic limb that's able to respond to both the music being played and the movements of the player.
81306631
submission
Zothecula writes:
3D printed tissues and organs have shown real potential in addressing shortages of available donor tissue for people in need of transplants, but having them take root and survive after implantation has proven difficult to achieve. In a positive move for the technology, researchers have used with a newly-developed 3D printer to produce human-scale muscle structures that matured into functional tissue after being implanted into animals.
81012603
submission
Zothecula writes:
The danger posed by rising levels of atmospheric carbon dioxide has seen many schemes proposed to remove a proportion it from the air. Rather than simply capture this greenhouse gas and bury it in the ground, though, many experiments have managed to transform CO2 into useful things like carbon nanofibers or even fuels, such as diesel. Unfortunately, the over-arching problem with many of these conversions is the particularly high operating temperatures that require almost counterproductive amounts of energy to produce relatively low yields of fuel. Now researchers at the University of Southern California (USC) claim to have devised a way to take CO2 directly from the air and convert it into methanol using much lower temperatures and in a correspondingly simpler way.
80935225
submission
Zothecula writes:
Experimentation with Germany's newest fusion reactor is beginning to heat up, to temperatures of around 80 million degrees Celsius, to be precise. Having fired up the Wendelstein 7-X to produce helium plasma late last year, researchers have built on their early success to generate its first hydrogen plasma, an event they say begins the true scientific operation of the world's largest fusion stellarator.
80905559
submission
Zothecula writes:
The rapid and on-going development of micro-miniature optical electronic devices is helping to usher in a new era of photonic computers and light-based memories that promise super-fast processor speeds and ultra-secure communications. However, as these components are shrunk ever further, fundamental limits to their dimensions are dictated by the wavelength of light itself. Now researchers at ETH Zurich claim to have overcome this limitation by creating both the world's smallest optical switch using a single atom, and accompanying circuitry that appears to break the rules by being smaller than the wavelength of the light that passes through it.
80799655
submission
Zothecula writes:
With the development of photonic chips and nano-optics, the old ground glass lenses can't keep up in the race toward miniaturization. In the search for a suitable replacement, a team from the Swinburne University of Technology has developed a graphene microlens one billionth of a meter thick that can take sharper images of objects the size of a single bacterium and opens the door to improved mobile phones, nanosatellites, and computers.
80389623
submission
Zothecula writes:
In a development that could lead to improved understanding of memory formation and epilepsy, scientists have discovered a new way information may be traveling throughout the brain. The team has identified slow-moving brainwaves it says could be carried only by the brain's gentle electrical field, a mechanism previously thought to be incapable of spreading neural signals altogether.
80193513
submission
Zothecula writes:
If one is going to get into the asteroid mining business, one needs to prove that you can do something with what's brought back. That seems to be the thinking behind Planetary Resources' recent presentation at CES in Las Vegas, where the asteroid mining company unveiled the first object 3D printed using extraterrestrial materials.
