Hasta La Gadget!

Outside of pen input, pressure sensors don’t get much love these days. However, Georgia Tech has just built an extremely accurate sensor that could give pressure-based devices their due. When a user pushes down on the new invention, its grid of zinc-oxide nanowires emits light that’s captured by fiber optics underneath at a very sensitive 6,300DPI. The combination of high resolution with light-speed responsiveness could lead to touch surfaces that capture far more detail than we’re used to. While computing interfaces are clearly prime candidates for the technology, Georgia Tech also sees potential uses in pressure-based fingerprint readers and even devices that simulate touch with skin-like behavior. We’ve reached out to the school for more information regarding its long-term plans, but it already anticipates improving the sensors with more efficient manufacturing techniques. Take a closer look at the sensor after the break.

Update: We’ve since had a chance to follow up, and we’re told that commercialization is likely five to seven years ahead.

Filed under: Science, Alt

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Source: Georgia Tech

AT&T launched its first Foundries primarily as mobile app incubators, but the carrier is switching focus tonight: it just unveiled plans to open more hardware-oriented Foundries in Atlanta and Dallas. Most Atlanta-based projects will expand AT&T’s Digital Life home automation service, with connected cars and U-verse also receiving a boost. The Dallas Foundry complements an existing presence in the city, but will pay attention to the internet of things and other forms of machine-to-machine chatter. In either circumstance, collaboration will be key. The Atlanta location will sit right next to Georgia Tech, while hardware makers at the new Dallas office can get software help at the original Foundry one floor down. The two new locations won’t open until a few months from now, but the Foundry program’s healthy track record suggests that patience will be a virtue for interested developers.

Filed under: Wireless, Networking, AT&T

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Source: AT&T

You don’t have to know Shel Silverstein to know that trees are exceptionally giving. They’re responsible for our homes, paper, air, furniture and, now, energy — the “clean” kind, that is. Researchers from the Georgia Institute of Technology and Purdue University have jointly devised a patent-pending method to build organic solar cells using plant-derived substrates. Known as cellulose nanocrystal substrates (or CNC), these solar cells benefit from being truly disposable, eliminating the waste that results from the use of alternative materials like petroleum or glass. The CNC-made cells are not only transparent enough to allow light to pass into an embedded semiconductor, but they also dissolve when submerged into water, thus earning the esteemed recyclable distinction.

Although this is undoubtedly a breakthrough for clean energy tech, it’s by no means a near-future reality. Apparently, current cells can only yield a 2.7-percent conversion efficiency rate, which falls far below the 10-percent threshold met by rival fabrication methods (i.e., petroleum and glass). So, there’s still significant work to be done before the team can improve production and achieve parity with those less “recyclable” options. Until that time, consider this a comforting reassurance that a clean fuel era is well within reach.

Filed under: Science, Alt

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Via: Forbes

Source: Georgia Tech, Nature

The military has come up with a multitude of ways to utilize robotics, from bomb disposal and recon bots to Avatar-like surrogates. But a robot that takes its cue from squirrels and African birds to deceive its enemies is decidedly novel territory. Researchers from Georgia Tech, who are also working on a MacGyver bot with AI smarts, are making inroads into developing just such a robotic trickster. The Office of Naval Research led by Professor Ronald Arkin discovered that squirrels often deceive competing squirrels by visiting fake stash locations while their real acorn collection lies elsewhere, and have developed a robotic model that utilizes the same strategy. The programmed deceptive behavior was successful, as demonstrated in the video after the break.

Another lesson from nature is from the African babbler, a species of bird that flocks and crowds around a predator without actually attacking it, with the assumption that it’ll back away from the harassing mob. Based on their simulations, the team concluded that deception of this sort is often the right move when pushed against the wall, especially in military operations. “Being honest about the robot’s abilities risks capture or destruction,” said Arkin. However, he recognizes there is a real ethical quandary when it comes to deceptive robot behavior — do we really want robots that can lie to us? It’s a question that conjures up memories of Battlestar Galactica and brings chills down our spine. Here’s hoping we can restrain the robotic deception to the good of mankind.

Continue reading Deceptive robots mimic squirrels and birds for potential military use

Filed under: Robots, Alt

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Source: Georgia Tech, Phys.org

If you’re the fidgety type, new research from Georga Tech may one day turn your nervous energy into a fully charged cellphone. The scientists, who previously borrowed piezoelectric power from walking, created static electricity generated from movement between plastic and metal, similar to the way a balloon can be electrified by rubbing it on your hair. The charging area was greatly increased by patterning the surfaces on a nanoscale level, allowing this “tribolectric effect” to be multiplied and converting up to 15 percent of the mechanical energy into electricity (so far). About 50 common materials could be paired to create the material, and a 2 x 2-inch patch could conceivably be worn as an armband and used to charge up a cellphone battery. So far the tech works fine in the lab, but it remains to be seen if real world vibrations can generate enough energy to make it practical. While you’re waiting, though, feel free to stock up on coffee.

Filed under: Cellphones, Science, Mobile

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Via: MIT Technology Review

Source: Nano Letters