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Huzzah! Yet another discovery for us to add to our ever-expanding list of “awesome things that’ll never actually happen!” Ibrahim Abou Hamad and colleagues from Mississippi State University have reportedly devised a method of charging batteries that could hasten the process rather significantly, and better still, it could provide “an increase in battery power densities” as well. The only problem? Lithium-ion batteries have been disappointing tech users for years, and so long as Energizer and Duracell are calling the shots, we kind of doubt a lot will be done to improve the longevity of ‘em. Skepticism aside, the new method involves some fancy black magic surrounding molecular dynamics simulations, and researchers have found a way to boost charging time by “simulating the intercalation of lithium ions into the battery’s graphite anode.” We know we just went way over your heads on a Friday afternoon, but if techobabble’s your thing, all you can handle is right there in the Source link.

Scientists discover method for rapid charging Li-ion batteries originally appeared on Engadget on Sat, 13 Mar 2010 03:19:00 EST. Please see our terms for use of feeds.

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Man, MIT is making all of these other places of higher learning look silly. For what seems like the fortieth time this month, scientists at the university have revealed yet another breakthrough that might just change the way we compute in the future. Polyethylene, which is about as common a polymer as they come, could very well become a vital part of the way your next processor is cooled, as MIT boffins have figured out how to cause said polymer to “conduct heat very efficiently in just one direction, unlike metals, which conduct equally well in all directions.” If you’re still struggling to figure out why this matters, have a listen at this: “this may make the new material especially useful for applications where it is important to draw heat away from an object, such as a computer processor chip.” In fact, even Intel is taking notice of the development, though no one’s saying outright when exactly this stuff will leave the lab and hit Dell’s supply chain. There’s no time like the present, guys.

[Thanks, Kevin]

MIT gurus use polyethylene to suck heat away from your next CPU originally appeared on Engadget on Wed, 10 Mar 2010 03:26:00 EST. Please see our terms for use of feeds.

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Researchers up at the University of Edinburgh have determined that the male voice is harder for voice recognition software to pick up and understand than its female counterpart. This conclusion was reached after telephone conversation recordings were run through a battery of tests, which revealed that men seem to say “umm” and “err” more often, while also identifying that the greatest difficulties arise with words that sound similar and can arise in the same context, such as “him” and “them.” Equally troubling is the first word in a sentence, as it comes without context and therefore doesn’t benefit from any predictive assistance. Done in partnership with Stanford, the study was aimed at identifying and overcoming the major hurdles to producing usable and reliable voice recognition — something Google’s universal voice translator phone is also aiming to achieve. Let’s hope somebody figures out how to get around all our hemming and hawing, eh?

Sexist computers: male voices are apparently harder to recognize than female ones originally appeared on Engadget on Fri, 05 Mar 2010 09:29:00 EST. Please see our terms for use of feeds.

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Microsoft looks to be on a bit of a hot streak with innovations lately, and though this here project hasn’t received much hype (yet), we’d say it’s one of the most ingenious user interface concepts we’ve come across. Skinput is based on an armband straddling the wearer’s biceps and detecting the small vibrations generated when the user taps the skin of his arm. Due to different bone densities, tissue mass and muscle size, unique acoustic signatures can be identified for particular parts of the arm or hand (including fingers), allowing people to literally control their gear by touching themselves. The added pico projector is there just for convenience, and we can totally see ourselves using this by simply memorizing the five input points (current maximum, 95.5 percent accuracy), particularly since the band works even if you’re running. Make your way past the break to see Tetris played in a whole new way.

Continue reading Skinput: because touchscreens never felt right anyway (video)

Skinput: because touchscreens never felt right anyway (video) originally appeared on Engadget on Tue, 02 Mar 2010 04:27:00 EST. Please see our terms for use of feeds.

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Microsoft looks to be on a bit of a hot streak with innovations lately, and though this here project hasn’t received much hype (yet), we’d say it’s one of the most ingenious user interface concepts we’ve come across. Skinput is based on an armband straddling the wearer’s biceps and detecting the small vibrations generated when the user taps the skin of his arm. Due to different bone densities, tissue mass and muscle size, unique acoustic signatures can be identified for particular parts of the arm or hand (including fingers), allowing people to literally control their gear by touching themselves. The added pico projector is there just for convenience, and we can totally see ourselves using this by simply memorizing the five input points (current maximum, 95.5 percent accuracy), particularly since the band works even if you’re running. Make your way past the break to see Tetris played in a whole new way.

Continue reading Skinput: because touchscreens never felt right anyway (video)

Skinput: because touchscreens never felt right anyway (video) originally appeared on Engadget on Tue, 02 Mar 2010 04:27:00 EST. Please see our terms for use of feeds.

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Piezoelectrics are nothing new — though most applications, they’ve proven to be far more theoretically useful than practical. Still, the technology is starting to move in a direction that could prove more applicable to everyday situations — and a new piezo material recently developed could really get the ball moving. Called PZT, it’s made of nano-sized fibers of lead zirconate titanate, which are applied to thin (and we mean thin) ribbons of flexible silicone rubber. The material is super efficient, and has the ability to convert mechanical energy into electricity at a rate of about 80 percent, and, because it’s made of flexible rubber, it would be well-suited to converting electricity from the energy of body movements, meaning all sorts of wearable fun may be imminent. There’s no word on any practical application of this yet — so we’ll just have to keep our eyes peeled for you.

Scientists to bring piezoelectrics and rubber together to form flexible, wearable energy harvester originally appeared on Engadget on Tue, 02 Mar 2010 01:45:00 EST. Please see our terms for use of feeds.

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