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Showing posts with the label science

EnerJ power-saving system prioritizes CPU voltage, may reduce energy consumption by 90 percent

It takes a lot of energy for computing systems or data centers to patch up critical errors, but what if we devoted less power to fixing less urgent issues? That's the basic idea behind EnerJ -- a new power-saving system that could cut a chip's energy consumption by 90 percent, simply by prioritizing critical problems over those that are less threatening. Unlike, say, liquid cooling techniques, the University of Washington's framework focuses exclusively on the programming side of the equation and revolves around two interlocking pieces of code: one that handles crucial, precision-based tasks (e.g., password encryption), and another designed to deal with processes that can continue to function, even when facing small errors. The system's software would separate the two codes, meaning that energy from one section of the chip would never be used to fix a major problem that the other should address, while allowing engineers to more efficiently allocate voltage to each regi...

Microsoft turns to crowdsourcing service to swat away patent trolls

We've seen the havoc that patent trolls can wreak on tech companies and Microsoft clearly wants no part of it. That's why Ballmer & Co. have joined forces with Article One Partners -- a New York-based research firm that crowdsources scientific expertise to figure out whether or not patented ideas or inventions are as innovative as they claim, based on prior art. By subscribing to Article One's new Litigation Avoidance service, Redmond hopes "to reduce risk and reduce potential litigation cost" brought by nonpracticing entities (NPEs) -- companies that collect thousands of patents, in the hopes that one may lay a golden egg. No word on how much the service will actually cost, but we're guessing it'll be worth at least a few legal headaches. [Image courtesy of  Robert MacNeill ] ComputerWorld

Lark's silent alarm clock hitting Apple Stores on June 14, promises not to wake your bedmate

Remember the Lark Up, that alarm clock that's likely to scare the bejesus out of you by sending vibrations through your unsuspecting wrist? The company's already taking pre-orders, but come June 14, you'll finally be able to waltz into an Apple store and handle one in person. For $129, it promises its silent vibrations won't wake your bedfellow, but if you've got a New Agey streak you can spend an extra $60 for one that analyzes your seven-day sleep history, including how long it took to fall asleep and how many times you woke during the night. For now, it's only available for iOS (hence, the Apple Store launch) but an Android version's predictably on the way, too. So is all this worth a good night's sleep? We'll leave that to you and your bed partner (or partners, if it's been that kind of week).

Quantum effect transistor is the world's smallest, hopes to make a big impact

What's better than billions of transistors? Billions of miniature two-nanometer ones, leaving room for billions more. A team of researchers accomplished just that, using the quantum effect to shrink these semiconductors -- and set a new size record in the process -- while also managing to keep them operating at room temperature (note: that photo above is from a different team's study). The team of South Korean, Japanese, and British researchers at Chungbuk National University expect them to "enhance the capabilities of mobile electronic devices" -- a mighty vague claim if ever there was one. Not one for modesty, lead researcher Choi Jung-bum proclaims that it "effectively changes the paradigm of such devices." With no word on mass production, though, we'll just have to wait and see for ourselves how big of an impact these lilliputian circuits will have.  Yonhap News ,  Tech-Freak Stuff

Microsoft manager teams up with teens to build a fusion reactor in his garage (video)

Normally, if a grown man talks about building a fusion reactor and wants your 13-year-old to hang out in his garage, we'd expect you to smile, back away slowly, and perhaps alert the authorities. But, if that man is Microsoft program manager Carl Greninger there's no need to run. The science fanatic recruited a team of teens, as young as 13, and worked with them to build a Farnsworth–Hirsch Fusor -- a (comparatively) simple nuclear reactor that smashes together atoms and produces neutrons. Check out the nearly 20-min video after the break to watch a bunch of high school kids generate ball of ionized plasma. And to think, all that's in your garage is that '65 Mustang you  swear  you're gonna restore one day. Channel 9

OpenPaths lets you visualize your iPhone location data, donate it to science (video)

What use could science possibly have for your iPhone location data? Well, you won't be curing cancer, but you could theoretically be contributing to epidemiology, land use surveys, or a study proving that people move around just as quickly on foot in New York as they do inching down the 405 in LA. At least that's the idea behind OpenPaths, a web-based tool that lets you securely and anonymously "donate" your cache. If you've upgraded to iOS 4.3.3, your iPhone will no longer store your location, but there should be plenty of coordinates spinning around on your hard drive to play with. After downloading the OpenPaths Uploader, you'll be able to visualize your own location information, and even if you've somehow deleted the data from your computer, the tool will search Time Machine backups (for Mac users) -- a little scary, no? Of course, there's always potential for misuse with any such service, but a researcher probably won't care that those late ...

Portal turret replica has real laser, insatiable bloodlust

You might not remember Ryan Palser by name, but you'll surely recall the good gent's homemade Fallout 3  plasma rifle. He has since stepped his game up to bigger and badder video game weapon replicas, and has just completed the construction of the first of his forthcoming army of  Portal  laser turrets. Thankfully, Ryan has been sporting enough to build the older version of these human eviscerators (not the upgraded  Portal 2  turrets, phew!), giving us at least a small chance of survival -- provided we have the right gear, of course. See the laser-equipped, GLaDOS-approved, 38-inch tall turret next to its maker after the break, or hit up the source link for some gorgeous photos of its construction. Kotaku ,  Make Ryan Palser (Flickr)

Robots learn to share, try to repair bad rep (video)

We've been told time and time again to fear our mechanical friends, so imagine our relief when we heard that some Swiss scientists had a batch of bots that displayed altruism. What's more, these little two-wheeled foragers weren't programmed to share, they  evolved  the trait. Researchers at EPFL infused Alice microbots with digital "genes" that mutated over time as well as color sensors that allow them to navigate their environment. The robots were tasked with collecting "food" and given the option to keep it for themselves or split it amongst their silicon-brained relatives. The more they decided to give to others with similar genetic makeup the more those virtual genes were passed on to future generations -- including the one for altruism. The experiment is an example of Hamilton's Rule, an evolutionary model for how the seemingly counter-intuitive trait of selflessness could arise through natural selection. Don't let your guard down just...

Magnetic fields shut down speech, permit love songs (video)

You already know the strange powers of Stephin Merritt, but today we're talking about  real  magnetic fields. Powerful electromagnets, it turns out, can do remarkable things to the brain -- in this case, prevent a volunteer from reciting "Humpty Dumpty." The carefully directed magnets temporarily disrupt the brain's speech centers; the volunteer can still  sing  the rhyme using different areas of the brain, but simply can't overcome a series of stammers when trying to merely recite it. Of course, it's not all mad scientist applications: the UK team experimenting with transcranial magnetic stimulation (TMS) thinks it can help us understand and treat migraines (as we've seen before with the Migraine Zapper),depression, and ADHD, among other ailments. But improving physical well-being doesn't make for nearly as entertaining media -- see the British inflict some involuntary quiet time in the video above. Physorg New Scientist

Researchers use GPS, accelerometers to boost smartphone data rates

Well, this might be a good reason for The Powers That Be to know your exact whereabouts. According to a team of MIT researchers, speeding up data rates on mobile devices could be as easy as tapping the various motion sensors found in run-of-the-mill smartphones. The scientists believe our wireless infrastructure is at the root of bottlenecks, with a handful of weak transmitters clumsily "handing off" data to one another as you move out of range. The solution: use GPS radios, accelerometers, and even gyroscopes to infer where you're headed, and then choose an access point near where you're likely to end up. The difference, they report, is dramatic: a 50 percent boost in throughput, along with improved success in choosing the best bit rate. To boot, if a base station is armed with location-based info, it can better predict when the devices connected to it are on the verge of losing contact. That's all good news, but sadly we doubt any amount of promising science is...

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, b...