Engadget's back to school guide 2012: ultraportables Aug 8th 2012, 16:00 Welcome to Engadget's back to school guide! The end of summer vacation isn't nearly as much fun as the weeks that come before, but a chance to update your tech tools likely helps to ease the pain. Today we're getting down to the very important business of helping you sift through laptops -- and you can head to the back to school hub to see the rest of the product guides as they're added throughout the month. Be sure to keep checking back -- at the end of August we'll be giving away a ton of the gear featured in our guides -- you can hit up the hub page right here!  Given their roots -- luxury machines like the original MacBook Air ($1,800) and last year's Samsung Series 9 ($1,649) -- you'd be forgiven if you initially dismissed Ultrabooks as being too extravagant for a college-bound student. Thankfully, though, prices have sunk so low that you can now find a thin, fast, ultraportable laptop for as little as $700. The only problem, perhaps, is a paradox of choice: the selection is already crowded with dozens of contenders, and there are 100-some-odd more models in the pipeline, according to Intel. Fortunately for you, dear readers, we've had the chance to handle or even review many of them, and were able to whittle down the offerings to a handful of promising contenders. Whether you're prepared to spend $750 or $1,400, we have something that'll fit the bill.  Continue reading Engadget's back to school guide 2012: ultraportables Filed under: Laptops Engadget's back to school guide 2012: ultraportables originally appeared on Engadget on Wed, 08 Aug 2012 12:00:00 EDT. Please see our terms for use of feeds. Permalink | | Email this | Comments | 3D printed 'Magic Arms' give a little girl use of her limbs Aug 8th 2012, 15:09  Don't get us wrong, we adore 3D printers and the whole additive manufacturing movement. But, if all you're going to get out of the ABS-jets are some companion cubes and a raptor claw, well then, we don't think there's much hope for the technology. Thankfully there are people out there (much better people than us, we might add), who have turned to 3D printers to actually improve peoples lives. Take, for example, the tale of two-year-old Emma, born with the congenital disorder arthrogryposis multiplex congenita (AMC). The disease causes a person's joints to become locked in a single position, in Emma's case, it was her arms. There are prosthetics that can help, but most are made of metal -- including the anchor vest -- which would make them too heavy for a 25-pound girl. Instead of going off the shelf, doctors turned to a 3D printer from Stratasys to create custom molded parts and a lightweight vest for Emma. The result: the two-year-old who once could not lift her arms is now able to play, color and feed herself. Printing the parts also solves another major issue -- Emma is growing... quickly. The adorable tot has already outgrown her first vest, but her mother just calls the Nemours/Alfred I. duPont Hospital for Children and has a new one made. The same goes for replacement parts. Should a hinge or brace break, it need only be a matter of hours (not days or weeks) before a new one is delivered. For more details check out the heartwarming video after the break. Continue reading 3D printed 'Magic Arms' give a little girl use of her limbs Filed under: Science 3D printed 'Magic Arms' give a little girl use of her limbs originally appeared on Engadget on Wed, 08 Aug 2012 11:09:00 EDT. Please see our terms for use of feeds. Permalink DVICE, Farai Chideya (Twitter) | Digital Trends | Email this | Comments | US Government Accountability Office recommends FCC reassess radiation limits for mobile phones Aug 8th 2012, 14:23 The topic of mobile phone radiation is once again on the burner in Washington D.C. Along with Representative Dennis Kucinich's proposed legislation that would institute labeling requirements and extensive research into the health effects of RF exposure, the US Government Accountability Office has issued a recommendation that the FCC update its current exposure limits and reevaluate current testing methodologies. As is, the FCC's radiation guidelines are based on research that was concluded in 1996, and while the US GAO concedes that this may lead to the adoption of higher SAR limits (in certain usage scenarios), the organization contends that it's time to bring current research and international recommendations into consideration. As potential cause for concern, the US GAO has also identified a failure of current testing methodologies. Put simply, manufacturers are currently required to submit specific absorption rates that reflect usage against both the head and body, however in the case of the body test, this is always done with the assumption of a holster. While a distance of 1.5 to 2.5 centimeters may not seem like much, SAR values increase with proximity, and many who use their mobile phones in their pockets -- say, with a Bluetooth headset -- are at risk of exposing themselves to RF limits that exceed current guidelines. The actual absorption rates are currently unknown. For its part, the FCC has responded to the US GAO and asserts that it has independently arrived at many of the same conclusions, and adds that it has initiated the procedural requirements necessary for the reevaluation of RF safety rules. Those who'd like to learn more can scour the complete recommendation, along with Rep. Kucinich's proposal, at the source links below. Filed under: Cellphones, Wireless US Government Accountability Office recommends FCC reassess radiation limits for mobile phones originally appeared on Engadget on Wed, 08 Aug 2012 10:23:00 EDT. Please see our terms for use of feeds. Permalink MobileBurn | US GAO, Congressman Kucinich PR | Email this | Comments | |