Thursday, December 06, 2007

Zetix Blast-Proof Fabric Resists Multiple Car Bombs, Makes Our Heads Explode

carbombtest.jpgZetix is a fabric so strong it will resist multiple car bomb blasts without breaking. It absorbs and disperses the energy from explosions thanks to an inner structure so adamantiumtastic it can be used in body armor, window covering, military tents and hurricane defenses—it might even be able to fend off my ex-wife. When not shielding from explosions, it can be used as medical sutures that won't damage body tissue. All of this is thanks to a property that apparently defies the laws of physics:

Zetix is built around the principle of auxetics: objects that actually get fatter the more you stretch them. Though it hurts to think about, as you will discover, it actually makes sense.

To demonstrate how Zetix works, the best thing is to look how a thread behaves. When you jump from a bridge using a bungee cord, the force of gravity acting over your body weight will stretch it as you go down in free fall. While this happens, the cord threads will stretch getting closer together and making the cord get thinner as it expands through a larger distance.zetix2.jpgHowever, if you coil a line around the bungee cord, something that defies logic will happen: the whole structure will get wider as it stretches. As you can see in the image, the line around the bungee cord becomes taut, making the bungee itself flex outward. This principle is called helical-auxetics. When you put two of these threads together, you have what Reed Richards would call an auxetic structure.zetix6.jpgzetix4.jpg When you take this to the micro level, you can create a fabric formed from thousands of these helically wound threads. The resulting global structure is so strong that it can dissipate the energies of multiple blasts without breaking, unlike other materials of this class. In fact, the expanding properties of Zetix give it almost miraculous properties.zetix5.jpgAccording to Dr. Patrick Hook—the creator of the fabric and managing director of Auxetix Ltd.—this fabric is "a design that can save lives" and, more importantly, it can do so repeatedly. "Most blast defenses are only capable of coping with a single explosion event and, once deployed and used, all significant protection is lost," he told Gizmodo. You can see the difference in the first photo, comparing an helical-auxetic fabric with your usual high-strenght blast protective fabric.

This material has other uses beyond terrorist attacks or battle scenarios, said Dr. Hook. The fabrics can "provide sustained protection and gives emergency services extra time to rescue trapped or injured people," and can offer effective protection against natural forces like hurricanes, as well as be deployed in containment systems, military tents, ballistic mosquito nets and body armor, a $2 billionpret-a-porter market.zetix3.jpgAnother advantage of Zetix is its low cost: other blast-protective textiles are made entirely of very expensive high-performance materials; Zetix uses them too, but in much smaller proportions. Zetix combines the good stuff with "cheaper bulk components" in a 1-to-100 ratio while maintaining it's blast-resistant properties. The cost difference only gets crazier when you remember that this can be used multiple times.

Though the company is in talks with multiple manufacturers to go into mass production, we don't yet know when you'll be able to buy this stuff at Home Depot to protect against the next hurricane or tornado, let alone when Chen will be able to buy underwear made completely from it for his next pantsing session. [Auxetix]

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Samsung announces world's fastest memory: GDDR5

Gadzooks gamers, Samsung just announced what they are calling the world's fastest memory: GDDR5. The new series five, double-data rate memory chip transfers data at a lickity quick 6Gbps -- about 4x faster while using 20% less power than the GDDR3 memory found in modern GPUs and the PS3. Compare that to their 4Gbps GDDR4 chips and you'll understand the fuss. The chips have already been delivered in samples to the likes of NVIDIA and ATI. Samsung expects the series five chips to capture more than 50 percent of the high-end PC graphics market by 2010. [via DigiTimes]

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Toshiba and Samsung to cross-license NAND rights: more flash for all!

While Toshiba (and SanDisk) and Samsung might be battling it out in the press for the world's fastest and highest-density NAND, they're actually good buddies behind closed doors. In fact, they've been partners in the Toshiba Samsung Storage Technology Corporation for years. Today they announced a deal to cross-license the rights to respectively produce, market, and sell Samsung's OneNAND and Toshiba's LBA-NAND memory chips. Each plans to release products next year based on the newly licensed technology of the other. The move should broaden the choice of suppliers to OEMs in a day where multi-sourcing reigns supreme. Yes, that's a good thing for us consumers.

[Via DigiTimes]

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Wal-Mart, Amazon ratchet up anti-DRM pressure

Both Wal-Mart and Amazon have already made their positions on DRM pretty well known, but it looks like each are now taking some further steps to ratchet up the pressure on the remaining hold-out record labels. For its part, Wal-Mart has reportedly told the record labels point blank that they must offer DRM-free MP3 versions of all their music, a matter that Sony BMG is apparently still the biggest hold out on. Amazon, on the other hand, is looking to give its download service (and, in turn, DRM-free downloads) a boost by giving away up to a billion free downloads in a promotion with Pepsi that's its set to launch during the Super Bowl in February. You'll need to guzzle quite a bit a Pepsi if you want to get your quota of those MP3s, however, as you'll apparently need to collect five bottle caps for each download. According to Billboard, Amazon has approached all the major record labels about participating in the promotion, but some are apparently balking at the 40 cents per track Amazon is willing to give 'em, which is a sizable cut from the 65 to 70 cents they currently receive.

[Via Gadget Lab]

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JetBlue introduces free in-flight email and IM

In a welcome first for domestic airlines, JetBlue will be rolling out free in-flight Yahoo IM and email services to passengers packing WiFi-equipped devices, starting aboard its new "BetaBlue" Airbus A320. Once this test-bed passenger jet reaches 10,000 feet, an in-plane network with three in-ceiling access points is activated, allowing most any wireless gadget with a Flash-enabled browser to view specialized versions of either Yahoo Messenger or Mail through a universal landing page. What's more, owners of certain BlackBerry handsets like the 8820 or Curve 8320 can keep feeding their addictions non-stop thanks to an agreement between JetBlue and RIM.

Bandwidth for these services is provided by LiveTV, a wholly-owned subsidiary of the carrier that provides the entire fleet with select DirecTV and XM radio channels, and which also happens to possess a valuable 1MHz slice of ground-to-air spectrum that it's deploying for this very purpose (with the help of some 100 existing cell towers around the country). If all goes well in what is admittedly a beta test, more aircraft will receive the WiFi makeover, and more features -- such as access to terabytes of locally-stored multimedia content -- will be rolled out, along with additional service providers besides Yahoo. Just don't expect an open pipe any time soon: that sweet little slice of spectrum is not nearly robust enough to handle the heavy Slinging, VoIPing, and Torrenting you all would obviously be doing.

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