Hasta La Gadget!

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.

Graphene electrodes promise 5x energy storage boost for ultracapacitors originally appeared on Engadget on Wed, 08 Dec 2010 23:10:00 EDT. Please see our terms for use of feeds.

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Whether we like, loathe, or never even considered the idea of it, quantitative literary analysis seems ready for its moment in the spotlight. Dan Cohen and Fred Gibbs, a pair of historians of science over at George Mason University, have been playing around with the titles of some nearly 1.7 million books — accounting for all the known volumes published in Britain during the 19th century — in a search for enlightenment about the Victorian era’s cultural trends and developments. By looking at how often certain words appear in text titles over time, they can find corroboration or perhaps even refutation for the commonly held theories about that time — although they themselves warn that correlation isn’t always indicative of causation. Their research has been made possible by Google’s Books venture, which is busily digitizing just about every instance of the written word ever, and the next stage will be to try and mine the actual texts themselves for further clues about what our older selves thought about the world. Any bets on when the word “fail” was first used as a noun?

Continue reading Google helps scholars mine 1.7 million Victorian era book titles for clues to our historical attitudes

Google helps scholars mine 1.7 million Victorian era book titles for clues to our historical attitudes originally appeared on Engadget on Mon, 06 Dec 2010 05:52:00 EDT. Please see our terms for use of feeds.

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The reversal of aging has been one of the great dreams of humanity, but it seems like our rodent overlords have beat us to it. The Harvard Medical School has demonstrated “a dramatic reversal” in the aging process when reintroducing the enzyme telomerase into old and feeble mice. What happened was that their naturally worn out organs started to regenerate, instead of degenerating further, bringing them back to a youthful state of health. Sadly, while the results of this study are hugely important, there are a couple of caveats to make: firstly, the mice in question were genetically modified to suffer from a lack of telomerase, which might have inflated the results of the tests relative to regular mice, but more importantly, an increase in telomerase in humans is “a hallmark of most human cancers.” So, if you want a shot of Benjamin Button brew, you’ll have to be very patient indeed. For now, let’s just be happy that Algernon and his buddies have found their fountain of youth.

[Thanks, Vygantas]

Harvard scientists reverse aging in mice, laugh maniacally at human possibilities originally appeared on Engadget on Mon, 29 Nov 2010 06:37:00 EDT. Please see our terms for use of feeds.

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You know, we’d love to meet this Ramesh Raskar character. Possibly even shake his hand, or secretly become injected with a pinch of his DNA. You see, he’s devoted his life to proving that the impossible is actually possible, first conjuring up a 6D “super-realistic” image system just over two years ago. Now, he’s onto bigger and better things… things like cameras that can see around corners. Granted, this concept isn’t exactly a new one — LIDAR-equipped robots have been discovering hidden objects for years, but the mere thought of cramming this technology into a camera has us salivating. Auntie Beeb has a new piece up on the technology, and it actually does an exceptional job of explaining the technobabble. Put simply, the created prototype utilizes an ultra-short, highly intense burst of laser light (a femotosecond laser, if you have to know) to light up a scene; from there, it bends around corners and bounces back, using algorithms to figure out what’s inside of the room based on the bounce points. We’re guessing it’ll still be a few decades before this gets wrapped into a mid-range DSLR, but we’re cautiously hoping for a working mockup at CES 2015. Seriously, we just marked it down. Don’t disappoint us, guys.

MIT’s laser camera can photograph around corners, render your camouflage useless originally appeared on Engadget on Fri, 19 Nov 2010 10:28:00 EDT. Please see our terms for use of feeds.

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Perhaps the biggest challenge in making holograms usable on a daily basis — aside from having to film your subject with a million trillion cameras — is in getting their refresh rates up to the levels we’re used to with “normal” two-dimensional video. We’re still a fair way away from those magical 30fps, but the University of Arizona is touting a heretofore unheard of redraw rate of once every two seconds. This is a major advance from their first dynamic holograms demonstrated two years ago, which required minutes to swap over to a new image. The current prototype is built on a 10-inch photorefractive polymer screen, with lasers beaming information onto it, though 17-inch versions are also being tested. Another present limitation is that the hologram displayed can only be of one color, but that is also subject to the continuing labors of the UA researchers, who foresee no major hurdles preventing them from eventually cobbling together full-color, fast-refreshing, and fully realized 3D holograms. Now that’d be 3D television we can all get behind. Or in front of, depending on the viewing angle we want.

Continue reading Dynamic 3D holograms can now refresh every two seconds, save galaxies in their spare time

Dynamic 3D holograms can now refresh every two seconds, save galaxies in their spare time originally appeared on Engadget on Thu, 04 Nov 2010 06:52:00 EDT. Please see our terms for use of feeds.

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