South Korean researchers devise a safer lithium ion battery

While some researchers are focused on making batteries that are both safer and longer-lasting, it seems like the folks at the Korea Atomic Energy Research Institute (or KAERI) are simply concerned with making ’em really, really safe. To that end, they’ve now announced that they’ve managed to develop a new type of “separator” that is said to be far more resistant to heat and impact than traditional polyethylene separators. Made from a mix of polyethylene, nano-alumina and flourine-based resin that has been subjected to radiation, the new separator can supposedly hold up to temperatures of 150 degrees Celsius and “considerable outside impact,” and it can apparently be applied to all sorts of lithium-ion batteries — including everything from phones to laptops to electric cars. Of course, there’s no word as to when we might actually see the new and improved batteries, but KAERI has apparently already applied for the necessary patents for the new technique.

[Via Fareastgizmos.com]

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South Korean researchers devise a safer lithium ion battery originally appeared on Engadget on Tue, 17 Nov 2009 14:07:00 EST. Please see our terms for use of feeds.

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56 of the Most Hilarious and Amazing Modern Warfare 2 Easter Eggs You Will Ever See

Is it possible to love the results of a Photoshop Contest too much? Because oh man, these had me rolling on the floor. Seriously, you’re going to want to check this gallery out.

First Place—Jim Chitwood

Second Place—Andreas Kokkinos

Third Place—Sergio Hikawa

Hands On: Invisible Shield for Motorola Droid

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If anything were to happen to my brand new Motorola Droid, I’m not sure what I would do—and I don’t want to find out. So I picked up an Invisible Shield screen protector from Best Buy; it’s one of the few protection options for the Droid currently on the market. 

The product is a scratch-proof film that was originally implemented by the military to “protect high-speed helicopter blades from dust, dirt and debris.”  You can read more about it and watch someone take a key to an iPhone screen that’s protected by the film, on the Invisible Shield Web site. And I’ve outlined the application process with a Blackberry Pearl.

To get a feel for what the Invisible Shield looks like on the Droid, I’ve take a photos of mine next to a Shield-less Droid (above: left is without the Shield, right is with). When the screen’s off, you can clearly see the film, but once the screen’s on, the screen’s images blast through the film without losing much clarity. I like it a lot and am glad for the protection; the other Droid’s owner isn’t crazy about the look. I’ll let the pictures tell the story. Take a look after the jump. 

Audi’s A5 goes topless

CNET Car Tech reviews the 2010 Audi A5 Cabriolet. pOriginally posted at a href=”http://reviews.cnet.com/8301-13746_7-10399769-48.html” class=”origPostedBlog”The Car Tech blog/a/p

Back to Olympus with the God of War Collection

We already chatted with John Hight, Director of Product Development for Sony Computer Entertainment Worldwide Studios, at Santa Monica Studio about what to expect from the God of War Collection, so let’s see what we think after a week’s worth of playtime

Digigrip helps you fight excess baggage fees

From what we gather, the Digigrip can be attached to a bag and works like a regular handle. Once you lift the bag using it, a display will show you how heavy the carryall is.

Canon EOS 7D impressions for filmmaker wannabes

Chad Mumm is our video producer at Engadget, doing work on The Engadget Show and filming shorter-form stuff when we need it. He recently acquired the 7D for personal and work use, and we asked him to put together some thoughts on the camera in terms of using it primarily for video. You can check out our traditional review roundup for the 7D here.

These times are strange. Five years ago if you walked onto the set of a movie, TV show, or music video — before you got kicked out by a strung out production assistant — you’d have probably seen a bustling group of workers huddled around a giant camera changing out huge spools with Kodak or Fujifilm logos on them. The RED ONE camera shook up the industry when it was released two years ago and those cans of film were replaced with hard-drives and digital technicians. Now, we’re in the midst of another monumental camera shift, and it’s not the 3D revolution that everyone predicted. Nope, in 2009 we make our movies on DSLRs. Just how good are they? Well, the recently released Canon EOS 7D may just be the new Engadget workhorse. Read on for the inside scoop on our ridiculously cinematic new rig.

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Canon EOS 7D impressions for filmmaker wannabes originally appeared on Engadget on Tue, 17 Nov 2009 13:28:00 EST. Please see our terms for use of feeds.

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ATT Rolls out Wireless Upgrades in SF Bay Area

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The incessant whining about AT&T’s network coverage is especially loud here in San Francisco, and that’s largely because a lot of hipsters, techies and workaholics here own data-sucking iPhones. Fortunately, AT&T says it’s been investing in upgrades to improve bandwidth in the Bay Area.

Some highlights from AT&T’s press release:

  • Approximately 850 local cell sites have been upgraded to include 850 MHz, the majority occurring last quarter
  • In 2009 so far, AT&T has added nearly 40 new cell sites in the Bay Area and added significant backhaul
  • HSPA 7.2 slated to roll out in the Bay Area next year
  • Since 2008, AT&T’s network in the San Francisco area has experienced a 3G data traffic increase of 2,000 percent
  • Investments between 2008 and the third quarter of 2009 total nearly $65 million

“We know there are still challenges in the area, and these upgrades and investments will continue,” an AT&T spokesman said in a statement.

A 2,000-percent traffic increase? Yeesh. That’s believable, because it’s as easy to spot an iPhone here as it is to find a liquor store in the Mission. It’s no wonder San Francisco coverage was so slow in the global iPhone 3G speed test we led last year.

Are you seeing any improvements in coverage, San Franciscans? I generally get 3G coverage more often than before, but my reception is still horrible in my apartment (in the Richmond district). Still challenges in the area indeed.

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Photo: rnikko/Flickr

(Thanks, Seth!)


Ultimate Pocket Camcorder Comparison

Pocket camcorders are a hot holiday gift, but due to their nearly identical feature sets, it can be tough to tell which is best—so I tested seven of these humble unitaskers to make your decision easier. You’re welcome.

Pocket camcorders (AKA mini cams or budget cams, or sometimes Flip cams after the pioneer of the category) are simple gadgets. They’ve got one job to do: Shoot watchable video, often for uploading to streaming video sites. They’re also very close to the end of their lifespan, with perhaps only a year or so left before smartphones make them obsolete, but right now they’re the easiest and cheapest way to take quick and dirty video. I tested seven of these diminutive camcorders, or more accurately six camcorders and one capable PMP, in five categories: Outdoor, indoor, low light, macro, and sound.

The criteria for judging fell mostly to smoothness of video during motion, image sharpness, noise, and color reproduction. Specs like storage capacity, screen size and battery life are mostly the same across the board, although overall, compared to last year, this crop of mini cams are faster and stronger, with beefed up memory and HD sensors. All save the iPod Nano take 720p video (or better) and add HDMI ports and more memory to accommodate the higher-quality footage. Yet I wasn’t really all that thrilled with any of the camcorders—the bar for these cams is so low you could trip over it, and several of them actually did. Battery life was disappointing across the board, as none could break two hours of filming. Anyway, on to the results!

Results

Choosing between the Kodak Zi8, Flip Mino HD and Flip Ultra HD is tricky. The Zi8 is unreliable, but when it’s good it’s unbelievably good; the Mino HD is diminutive, solid and stylish, but overpriced and with lousy touch controls; and the Ultra HD is a reliably good shooter with a low price and the best controls of all, but physically unappealing (read: fat as hell). In my opinion, you should never judge a book by its obese cover, so the champion is…the Flip Ultra HD!

Flip Ultra HD: First Place


Flip’s Ultra HD is the best overall choice. It’s one of the cheapest cams around (at $150, it’s $70 less than it’s younger brother, the Mino HD), but it tied for the highest score in our lineup, and it features nice tactile controls that I much prefer to the sleeker Mino HD’s touch-sensitive exercise in frustration. Unfortunately, the Dom DeLuise HD is upsettingly fat—about twice as thick as the Mino HD, but even that doesn’t really get across how truly large it feels in the hand. It’s not particularly heavy, but it is by a long shot the thickest pocket cam here. On the plus side, that girth hides a useful battery—Flip includes a rechargeable pack, but the John Candy HD can also use two AA batteries, which is great since pocket cams have generally abysmal battery life (usually about an hour, though of course they’re often rated for double or triple that). Replaceable, cheap batteries are really nice, but some will have to decide whether the William Howard Taft HD’s girth is worth that feature. Given its price, I think it is.

Video quality is just fine, above average if not particularly impressive on every test, and it, like the Mino HD, is extremely user-friendly. Although that simplicity yields less flexibility and a barebones feature set compared to the Kodak Zi8, it’s a good distillation of the aims of pocket camcorders, and its 100% tactile controls are a welcome change from the Mino HD. If you’re not superficial, it’s a very smart buy.

Flip Mino HD: Second Place


Flip’s Mino HD is the best-looking and best-feeling camcorder I tried. Its aluminum body feels solid and expensive, which might be because it is—at $230, it’s the priciest camcorder I tested. But I wouldn’t be surprised if it sells the best, even though it’s not the greatest deal, because it looks (and is) simple, cute, and functional. I won’t rehash my review, except to say that I hate those goddamn touch buttons more and more every time I use the Mino HD. They’re incredibly sensitive and I guarantee that you will accidentally trigger the playback function more times than you can count.

Besides that, it’s totally serviceable: It did well on all of my tests, it’s thoughtfully designed and stupid-easy to use. But it’s definitely overpriced, and I have a hard time recommending it over its physically awkward yet substantially cheaper older brother, the Ultra HD, just for its looks.

Kodak Zi8: Third Place


Wider and taller than the Flip Ultra HD, though not nearly as fat, the Zi8 packs a 1080p sensor and the largest and best screen of the bunch. The controls are easy and tactile and aside from flimsy-feeling plastic covers over the ports (one of mine already fell off), the hardware is high-quality. The Zi8 snagged the bronze medal, because while its highs were higher than either of the Flips, its lows were lower—and given how focused and simple this type of gadget is, reliability is worth more than flashing moments of greatness.

The Zi8 absolutely rocked in two of my tests, outdoor and macro, with perfect color reproduction and excellent clarity, and it even takes pretty decent still photos (think point-and-shoot circa 2006 quality). But the conditions need to be just right to get the most out of this guy—I first tried it in 1080p mode (neither of the Flips can break 720p) and while picture quality was amazing, scenes with lots of motion were pretty jerky to the point of being distracting. But even in 720p, it was still head-and-shoulders above the competition—but only in outdoor and macro testing. In the indoor test it proved to have difficulty focusing on objects closer than 10 feet but farther than 2 feet away, and low light shooting was distinctly tinted red and a bit dark. It wasn’t unusable in any test (unlike the similarly uneven Creative Vado HD) and at $180 it’s fairly priced, so I’d still recommend it—but you and I are likely to be more forgiving of the Zi8’s flaws than, say, your mom, who just wants a camera that works pretty well all the time. For her, go for a Flip.

The Rest

The Creative Vado HD scored pretty high, only a point lower than the bronze medalist Kodak Zi8, but while its design is fairly middle-of-the-road (albeit nice and teeny), its abilities were all over the place. It was one of the worst in standard daytime shooting (it has a hard time with sunlight, a serious problem for a pocket cam) and macro, but was the best at indoor, and while its low light video was a little dark, it was the clearest and smoothest of the lot. It also, likely due to Creative’s background in stellar-sounding PMPs and sound cards, boasts excellent sound quality. At $150, it’s very fairly priced, but I can’t recommend a camcorder that mangles sunlight the way the Vado does.

Apple’s iPod Nano is the only “camcorder” in this roundup to peak at VGA resolution, and aside from a surprisingly strong macro performance, it shows. It turned vibrant colors dull and lifeless, washed out detail and made everything seem darker than it was. It can’t compete with the Zi8s and Flips of the world, but it’s still usable and incredibly priced at $150/$180 for 8GB/16GB—if you’ve got a Nano already, you probably won’t need a dedicated cam. Convergence killed the video star, I guess.

The JVC Picsio GC-FM1 sucked. It’s spectacularly ugly (think Ed Hardy-inspired) and cheap-feeling, with a confusing button layout (unforgivable in a pocket cam) and a high price ($200, or $178 at Amazon). Besides all that, it scored poorly in every one of our tests. Avoid.

And finally, the worst—Aiptek’s PenCam HD. I wanted to like it, I really did—it’s got a tongue-depressor-like design and came with a sweet tripod that attaches to a bicycle’s handlebars—but it bombed in almost every one of my tests. The 1.1-inch screen is nearly unusable and battery life barely topped 40 minutes, so it’s definitely the loser here.

Here’s a giant gallery of all 28 videos I took.

Don Nguyen assisted with this Battlemodo.

Hands On, Kid Tested: Star Wars Republic Squadron Motion Flight Game

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Is your little one a video-game couch potato? JAKKS Pacific may have what you need with the Star Wars Republic Squadron Motion Flight Game ($29.99 list, for ages 5 and up). Your child’s moves control the game, so kids will stay on their feet.

The Star Wars Republic Squadron Motion Flight Game is basically a game controller that you plug into your TV; the game is built in. It has AV cables attached, and on the controller are a menu button, an on/off switch, and dual trigger buttons on both ends and underneath the controller.

Setup was super easy: Since it’s a plug-and-play toy, there’s nothing to build or put together. (And the packaging was easy to get into, unlike with so many toys; you just untie a few strings, and it’s out of the box.) The controller requires four double-A batteries. To insert them, you turn the controller over and unscrew the compartment. Then just  plug the AV cord into the proper TV input, hit the on switch, and you’re good to go.

The mission in this entertaining game is to help Obi-Wan Kenobi and Anakin Skywalker fight General Grievous and his separatist forces. Your child flies a number of ships in a series of campaigns to help them win (there are over 20 missions included).