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Apple gets patent for in-cell touch display with impeccable timing
So Apple could be working on an iPhone with a thinner display, you say. Look what we have here, possibly in the nick of time: it's a newly granted Apple patent for a screen with in-cell touch, where the LCD and touch recognition are integrated into one panel instead of stacking up in separate layers. Apple's implementation would slim things down by either having electrodes share duties, both driving the display and taking finger input, or stuffing two electrodes into each pixel to accomplish the same goal. The net effect isn't just one of squeezing a device into a thinner chassis; the company also envisions costs coming down by reducing the number of parts and streamlining the manufacturing process. As envisioned, the screen looks like an ideal fit for a significant revamp of Apple's mobile display technology, although we'd be careful about assuming that this or any in-cell touch implementation is a lock for potentially imminent iOS hardware. Apple first filed the patent in early June 2007, before the original iPhone had even marched into a retailer -- display technology has come a long way since then.
Army scientists juice battery voltage, hike life up to 30 percent
With the modern US soldier turning into a walking gadget, the army has some heavy reasons to lower battery weights. Its own scientists might have the answer, claiming 30 percent energy density jumps could happen using additives they developed. Those "sacrificial agent" materials would bond with electrodes to allow five volts instead of the four they've been stuck on, permitting a "quantum leap" in efficiency and weight. We'll have to see if that'll come to pass, but given the sheer volume of tech that soldiers are strapping on these days, it couldn't be too soon. To see a video of how it works, zap past the break.
Device warns of catastrophic failure in lithium-ion batteries, robots celebrate
"Catastrophic lithium-ion battery failure" are five words Malfunctioning Eddie never wants to hear, and may not have to, thanks to a new sensor developed by the folks at the Johns Hopkins University Applied Physics Laboratory. Despite the popularity of lithium-ion batteries in everything from consumer electronics to hybrid and electric vehicles, they have been associated with a phenomenon called "thermal runaway" -- known to cause overheating and potentially, fire. The newly developed device measures the electrical parameter of the cell, which is an indicator of whether the internal layer temperatures are getting too toasty. The best part? The warning comes before the heat can reach the surface and cause catastrophic failure, perhaps saving our electronics from a fate like the one in the video after the break.
Researchers use graphene and tin sandwich to make better battery electrodes
Graphene, that microscopic chicken wire made of carbon atoms, has a great many theoretical uses. Among these is to improve Lithium-ion battery technologies, and the big brains at the Lawrence Berkeley National Laboratory have created a graphene and tin composite material for use in battery electrodes. When it's baked at 572 degrees Fahrenheit (300 degrees Celsius) the tin turns into nanopillars that widen the gap between the graphene layers. The greater volume of tin provided by these tiny towers improves electrode performance (read: faster charging), and the flexibility of the graphene prevents electrode degradation. Naturally, current prototypes can only maintain capacity over 30 charge cycles -- as opposed to the hundreds required for commercial applications -- so some serious improvement has to happen before we see it strut its stuff in any phones or EVs. This leaves us, once again, extolling the virtues of graphene, but lamenting its exclusively academic application.
New 'semi-solid' battery could recharge EVs as fast as pumping gas
Researchers at MIT reckon they've struck oil. In fact, you're looking at what they call "Cambridge crude" -- a substance that could halve the weight and cost of EV batteries and make them quicker to charge too. The black goo is packed with a high concentration of energy in the form of particles suspended in a liquid electrolyte. When separated by a filter, these particles function as mobile electrodes that can be pumped into and around a system before the energy is released. So instead of waiting up to 20 hours to juice your Nissan Leaf, you could potentially just pump this pre-charged substance into it -- rather like dirty old gas. Until now, no such "semi-solid flow cell" has been able to hold useful quantities of energy, but this stuff literally oozes with it. Not only could it power EVs, it could even be used for large-scale electricity storage for utilities. The researchers insist this energy revolution is years off -- but when it comes, there will be blood.
Test subjects with electrode implants use mind control to move a cursor
As trippy as mind-control still seems to us, we've already seen it implemented in everything from wheelchairs to pricey gaming (and car driving!) headsets. But the problem is that they measure brain activity outside the skull -- you know, the thing we've evolved to shield the murky goings-on in our minds from prying EEG sensors. Now, though, a team of Washington University researchers appears to have happened upon a more effective -- albeit, invasive -- approach. The researchers got some brave specimens to move a mouse cursor by implanting plastic pads containing electrodes underneath their skulls, with the sensors sitting on the surface of the brain. That, they say, gives them access to more telling, high-frequency waves that say a lot more about cognitive intentions. In the end, the subjects moved the cursors by thinking one of these sounds: "ee," "ah," "oo," and "eh." Brain-computer interfaces ain't new, of course, but the scientists say the subjects with electrode implants had more success than people wearing electrode-studded EEG caps, which could translate to less frustration for people with severe disabilities.
Carbon nanotubes run into magical polymer, become 'tougher than Kevlar'
Much like graphene, carbon nanotubes seem to be hitting on all cylinders in the lab. Of course, we can count on one hand finger how many instances we've seen them making a difference in "the real world," but we aren't giving up hope just yet. Researchers from a cadre of universities have come together to solve one of the most nagging issues when dealing with carbon nanotubes -- in prior studies, the bundling of these tubes resulted in a marked decrease in strength, which in turn led to a profuse outpouring of tears. But thanks to a new approach, which mixes in a nondescript polymer, they've managed to conjure up a "a high performance fiber that is remarkably tough, strong, and resistant to failure." More specifically, the resulting material is said to be "tougher than Kevlar, meaning it has a higher ability to absorb energy without breaking." Notably, this material isn't stronger than Kevlar, as it's resistance to failure isn't quite up to snuff, but you can bet the gurus working on this won't stop until it is. And then, friends, we will have officially arrived in The Future.
Graphene electrodes promise 5x energy storage boost for ultracapacitors
Graphene. We hear of your achievements so often, but feel your benefits in our everyday lives so infrequently. We'd be remiss if we didn't point out how unhealthy of a relationship this is, but hopefully Bor Jang and co. have a mind to mend it all. Bor, along with a number of colleagues at Nanotek Instruments, have just uncovered a graphene advancement that could put conventional Li-ion cells in a world of hurt. Of course, we've been hearing about so-called "battery breakthroughs" for the better part of our lives, but few have involved progress with ultracapacitors. For those unaware, ultracapacitors are energy storage devices that can "absorb and release charge in minutes," and they're pegged as cheaper / safer alternatives to batteries for electric vehicles. The only problem? Mainstream versions today hold just five percent of the energy held by Li-ion batteries. Nanotek's crew has figured out that the use of graphene electrodes "could lead to ultracapacitors with more than five times the energy density of commercial devices," but as these things always go, no one's coming close to producing a hard release date. We'll just assume it's undergoing lab tests for now, and in 2022 we can all weep at what could've been. Prove us wrong, whiz kids.
Rat controls vehicle with its brain, Pinky and The Brain apply for 'one last run'
So, let's paint the picture, shall we? There's a rat, a bundle of electrodes, more wiring than an electrician would know what to do with and some sort of wheeled apparatus. In the background stands a team of crazed Japanese scientists, intent on never sleeping again until said rat controls said vehicle entirely with his mind. Nah, it's not a re-run of a WB classic -- it's real life, and it's happening now in a dark, shadowy corner at the University of Tokyo. The RatCar is a newly developed rat-vehicle experiment that researchers hope will open new doors for those with mobility issues; we've seen brain-machine interfaces change the lives of the disabled before, but giving them the ability to control their wheelchair with their mind (for instance) would be taking things to an entirely new level. As of now, the team still has to figure out how to accurately determine how much movement is coming from the rat's feet and how much is coming from its mind, but there's no question that the research shows promise -- just don't let the humanoids learn of our findings, okay folks?
Brain Carpet microelectrodes could help translate thoughts into actions more effectively
Researchers at the University of Utah have developed a new, more precise way of placing microelectrodes on the surface of the brain to enable patients to turn thoughts into action. Led by Bradley Greger, a professor of bioengineering, the "Brain Carpet" as it's called, represents a "modest advance" in techniques already in use. The Brain Carpet makes use of smaller microelectrodes, and also employs many more than are usually used. The method involves sawing off the skull of the patient, then placing 32 electrodes about 2mm apart on the surface of the brain. Though they've conducted tests on just a handful of patients -- all epileptics -- the technique, they believe could also be used to help people control their prosthetic limbs much more effectively. The electrodes allow detection of the electric signals in the brain which control arm and hand movements. In the tests, patients have successfully controlled a cursor on a computer screen following the operation, and they see applications for brain-machine interface devices in the future. There's no word on when the Brain Carpet will move from the research to reality phase, but the group's findings have just recently appeared in the journal Neurosurgical Focus.
Standard Dell mouse gets GSR electrode implant
Looking to spark up a makeshift psychology lab in the basement of your house? Look no further than the galvanic skin response computer mouse. For those unaware, GSR electrodes can gather data about human interactions with computers, though most rigs are so invasive that test subjects end up freaking out rather than passing on useful information. This non-obtrusive method relies on a device that the vast majority of computer users already use (that'd be a mouse), and by simply installing the sensors into the left and right click buttons, you're left with an analyzing tool that may not even tip off your kid sister, significant other, or your most favorite poker pal. At any rate, hit the read link to get your mad scientist on.[Via MAKE]
The Mindwire V5 turns gaming into pure electroshock torture
Sure, your games are thrilling and all, but they don't exactly cause actual pain, do they? Well, that's all going to change thanks to the two twisted dreamers who started the company Mindwire, and their electroshock feedback device, the V5. That's right, next time you get fragged in Unreal, sacked in Madden, or robbed in GTA -- you get shocked in real life. Just the sadistic thrill you've been after, right? The device works by splitting your controller input to the "brain" of the V5 and your console, then sends electric jolts via electrode pads on your skin. Right now the company has a model tested and working with the PS2, Xbox, GameCube, and PCs, though they appear to be making preparations for current gen consoles in the next iteration of the device. If you're content with the choices at hand, this self-torture can be yours for £99.99 (or around $201). Check the totally awesome video after the break to see the V5 in action.[Via Coolest Gadgets]
Researchers develop scalable circuit printing technique
As if there weren't enough "almost theres" in the world of printable circuits, now we've got yet another team developing their own iteration of a printing press for electronics. The group, which includes scientists from DuPont and Organic ID, has reportedly "fabricated a printing plate used to print the source-drain level of an array of thin-film transistors," essentially solving some of the low-resolution constraints seen on prior competition. The goal is to eventually posses the ability to "print large, flexible circuits using machines similar to printing presses," and while it seems to be a ways from commercialization, initial testing and comparisons to more traditionally-created transistors have produced glowing results.[Image courtesy of HowStuffWorks]
Super Taser sports extra electrode for double the fun
Nothing get us going in the morning like a good tasering to the torso, but sometimes when we're getting our crime on during the winter months, it takes the cops two or three shots to penetrate our bulky Starter jackets. Well Taser International is fully aware of this problem -- apparently it happens not only with layered clothing but furry animals as well -- and has been furiously conducting government-sponsored R&D so that even the most padded criminal or woolliest feral cat can be dropped with just one round. To accomplish this lofty goal, experts in "non-lethal" weaponry have developed a projectile that, unlike traditional models, contains electrodes on both ends; if the first shock isn't enough to make the target lose control of his/her muscles and bodily functions, he/she will instinctively grab (or in the case of a malicious squirrel, bite) the barbs and try to remove them -- resulting in a second, unprotected shock from the electrode at the other end. Very clever stuff, really; there's nothing like turning people's own instincts against them in order to ensure compliance. We'll report back on the effects after we get stunned with one of these new devices for the first time, although if you're the type who prefers to pull off your capers without getting electrocuted, we suggest that you start wearing some thick ski gloves on your heists as well.
Intelligent carpet can autodiscriminate
Next time you walk into a hiring office and spot freshly laid carpet, you might want to ensure you're at an equal opportunity employer. A new kind of floor covering has been invented at the National Institute of Advanced Industrial Science and Technology in Japan that determines the weight, age, and sex of the individuals strolling across. Aside from allowing hiring managers to make snap decisions about the person approaching their door, the team hopes to use it in less dodgy scenarios such as analyzing shopping patterns or audience demographics at various entertainment venues. The carpet's intelligence is derived from a layer of silicone rubber with built-in electrodes that measure the changes in electrical resistance and current flow caused by someone walking across it. Testing has produced a nearly perfect record when determining ages between 20 and 60, and gender is identified with about 75 percent accuracy -- eerie to say to the least. Although it cannot yet identify your alma mater or intelligence level, at least you can blame the carpet for your demise whenever an interview goes awry.
