eldavojohn writes "A new paper (PDF) out of Carnegie Mellon University shows how to solve symmetric diagonally dominant linear systems much faster than before. The technique employs graph theory, randomized algorithms, and linear algebra to achieve an astonishing advantage over current methods to solve such systems. From the article: 'The result is a significant decrease in computer run times. The Gaussian elimination algorithm runs in time proportional to s^3, where s is the size of the SDD system as measured by the number of terms in the system, even when s is not much bigger the number of variables. The new algorithm, by comparison, has a run time of s*[log(s)]^2. That means, if s = 1 million, that the new algorithm run time would be about a billion times faster than Gaussian elimination.' Developers out there who maintain matrix packages and linear algebra tools might want to take a peak at the paper. Anyone who has modeled real-world systems will be able to tell you that speedups in linear algebra algorithms have a weighty effect on efficiency in simulations — especially as one approaches the theoretical limits of optimality. This research is currently being presented at the IEEE Symposium on Foundations of Computer Science."

KantIsDead writes "MIT's Technology Review adds to the ongoing discussion of China's monopoly on rare earth metals, an issue that was temporarily catapulted to national attention during China's rare earth embargo of Japan. The current article focuses on the search for alternatives to rare earth metals that would undercut China's monopoly and allow nations to develop their industry without fearing the hand of a Chinese embargo. From the article: 'In the US, the Chinese dominance of rare-earth mineral production has prompted a surge of funding focused on developing permanent magnets that use less, if any, rare-earth materials, such as nearly $7 million from the Advanced Research Projects Agency for Energy (ARPA-E). In one of these projects, University of Nebraska researchers are working to enhance permanent magnets made with an alloy iron and cobalt, or FeCo. This class of materials is sold today, but delivers half or less of the power of the best rare-earth-based magnets. The Nebraska researchers will focus on ways to dope the structural matrix of these alloys with traces of other elements, thereby rearranging their molecular geometry to create stronger, more durable permanent magnetic materials.'"

cortex writes with an excerpt from the L.A. Times: "In a first step toward helping severely paralyzed people communicate more easily, Utah researchers have shown that it is possible to translate recorded brain waves into words, using a grid of electrodes placed directly on the brain. ... The device could benefit people who have been paralyzed by stroke, Lou Gehrig's disease or trauma and are 'locked in' — aware but unable to communicate except, perhaps, by blinking an eyelid or arduously moving a cursor to pick out letters or words from a list. ... Some researchers have been attempting to 'read' speech centers in the brain using electrodes placed on the scalp. But such electrodes 'are so far away from the electrical activity that it gets blurred out,' [University of Utah bioengineer Bradley] Greger said. ... He and his colleagues instead use arrays of tiny microelectrodes that are placed in contact with the brain, but not implanted. In the current study, they used two arrays, each with 16 microelectrodes."

disco_tracy writes "Two different viruses have been used to create the cathode and anode for a lithium-ion battery. If research pans out, the parts could be grown in and harvested from tobacco plants and then woven into or sprayed onto clothing to power a wide range of electronic devices."

An anonymous reader writes "Researchers have found that a gene mutation was the reason behind the increased virulence of the 2009 H1N1 swine flu virus which resulted in a pandemic across the world. 'The H1N1 virus, Kawaoka explains, is really a combination of four different avian and swine flu viruses that have emerged over the past 90 years, and even includes genetic residue of the 1918 pandemic virus, an influenza that killed as many as 20 million people.' The University of Wisconsin-Madison's School of Veterinary Medicine researchers identified the relocation of a specific amino acid in the gene matrix that enabled the virus to hijack host cells, a feat that triggered the recent pandemic." The World Health Organization's director general said H1N1 is likely to lose its status as a pandemic very soon.

As New York is putting Wi-Fi on wheels, reader Hugh Pickens notes a counter trend in Los Angeles coffee shops. (We remarked on a similar backlash in Seattle in 2005.) "Coffee shops were the retail pioneers of Wi-Fi, but Jessica Guynn reports in the LA Times that now some owners are pulling the plug after finding that Wi-Fi freeloaders who camp out all day nursing a single cup of coffee are a drain on the bottom line. Other owners strive to preserve a friendly vibe and keep their establishments from turning into 'Matrix'-like zombie shacks where people type and don't talk. 'There is now a market niche for not having Wi-Fi,' says Bryant Simon. After Dan and Nathalie Drozdenko turned off the Wi-Fi at their Los Angeles cafe, the complaints poured in, but so did the compliments: Lots of customers appreciated a wireless cup of joe at the Downbeat Cafe, a popular lunch spot in Echo Park. 'People come here because we don't offer it. They know they can get their work done and not get distracted.'"

DARPA is working on a project that will convert energy from the human body to power a variety of military gadgets. From the article: "Obviously, our bodies generate heat — thermal energy. They also produce vibrations when we move — kinetic energy. Both forms of energy can be converted into electricity. Anantha Chandrakasan, an MIT electrical engineering professor, who is working on the problem with a former student named Yogesh Ramadass, says the challenge is to harvest adequate amounts of power from the body and then efficiently direct it to the device that needs it." If I remember the movie correctly, this didn't turn out so well for the humans.

An anonymous reader writes "The idea of using virtual reality and gaming technologies to create training exercises and business simulations has been around for years. But recent advances in computer graphics, interfaces, and massively multiplayer online (MMO) games have made it commercially viable to pursue simulations in the business world. Novel, a venture-backed startup company, is about to launch a new MMO role-playing game, called Empire & State, with an unusual goal: to use the technology and the lessons it learns from the game to create simulations for big companies that want to improve their human resources and hiring efficiencies. Imagine assessing employees' leadership and teamwork skills by jacking them into a virtual, multiplayer business scenario. That's the goal, but Novel will face challenges of all sorts — business, social, and technical — in its efforts to sell MMO technologies to the corporate world."

ByronScott writes "A team of researchers at MIT has just announced that they have successfully modified a virus to split apart molecules of water, paving the way for an efficient and non-energy-intensive method of producing hydrogen fuel. 'The team, led by Angela Belcher, the Germeshausen Professor of Materials Science and Engineering and Biological Engineering, engineered a common, harmless bacterial virus called M13 so that it would attract and bind with molecules of a catalyst (the team used iridium oxide) and a biological pigment (zinc porphyrins). The viruses became wire-like devices that could very efficiently split the oxygen from water molecules. Over time, however, the virus-wires would clump together and lose their effectiveness, so the researchers added an extra step: encapsulating them in a microgel matrix, so they maintained their uniform arrangement and kept their stability and efficiency.'"

adeelarshad82 writes "The open-source Arduino electronics platform has received a ton of attention from the hardware enthusiast community. And one more follower is joining the fray — Mario himself. The mustachioed plumber of console video game fame has been converted into an eight-by-eight LED matrix by Carnegie Mellon University student Chloe Fan. However, the game isn't quite the Mario you know from your legacy Nintendo Entertainment System. For starters, it's just lights. While one often sees the game's LED-backed grid used in devices like the open-source Monome, where it can function as a push-button toggle for music beats and effects, Fan's version of Mario uses the grid as a display only. Mario — or rather, a one-light representation of the game's hero — is controlled NES-style through the use of two buttons. One button makes Mario move forward; the other makes him leap into the air."

An anonymous reader writes "A company claims it has the technology to make writing on touchscreens more like writing with pencil and paper, when the harder you press the thicker the line you produce. The technology uses a material called Quantum Tunneling Composite (QTC), the resistance of which is extremely sensitive to pressure, unlike today's touchscreen phones, which might be fine for basic finger-pointing, but they are poor at gauging the pressure of the touch. The hope is that this will be useful in Asia for handwriting recognition, because Asian scripts use a lot of variation in line thickness. Interestingly, screens with a standard 2D touch matrix can get the extra measure of control using a narrow strip of QTC down the side."

Martin Ecker writes "The Red Book, also known as the OpenGL Programming Guide published by Addison-Wesley Professional, returns in its seventh edition, now covering OpenGL up to and including version 3.1. The Red Book, so called because of its deep red cover, is the most-well known, authoritative introduction to the OpenGL graphics API. In this review I want to take you on a whirlwind tour through the pages of this book to see what it has to offer." Keep reading for the rest of Martin's review.

An anonymous reader writes "Develop has an excellent piece up profiling a bunch of average to awful titles that flopped so hard they harmed or sunk their studio or publisher. The list includes Haze, Enter The Matrix, Hellgate: London, Daikatana, Tabula Rasa, and — of course — Duke Nukem Forever. 'Daikatana was finally released in June 2000, over two and a half years late. Gamers weren't convinced the wait was worth it. A buggy game with sidekicks (touted as an innovation) who more often caused you hindrance than helped ... achieved an average rating of 53. By this time, Eidos is believed to have invested over $25 million in the studio. And they called it a day. Eidos closed the Dallas Ion Storm office in 2001.'"

An anonymous reader writes "About 8 percent of human genetic material comes from a virus and not from our ancestors, according to an article by University of Texas at Arlington biology professor Cédric Feschotte, published in the Jan. 7, 2010 issue of Nature magazine."

brothke writes "If Shakespeare were to write an information security tragedy, it would not be titled Hamlet, rather Bayuk. The story of Jennifer Bayuk is tragic in that she spent a decade as CISO at Bear, Stearns, building up its security group to be one of the best in the business; only to find it vaporized when the firm collapsed and was acquired by J.P. Morgan Clearing Corp. After all that toil and sweat, Bayuk was out of a job. (Full disclosure: Bayuk and I have given a presentation together in the past, and I did get a copy of this book for free.)" Read below for Ben's review.

BuzzSkyline writes "Researchers in Belgium have developed devices to harvest the waste heat our bodies throw off in order to convert it to electricity to run devices such as a wristband blood oxygen sensor and an electrocardiogram shirt. As a side benefit, the power sources help cool you down and keep you looking cool, all while running sundry micropower devices. In fact, the researchers mention that the energy harvesting head band works so well that it can get uncomfortably cold. In that case, they say, 'This problem is solved in exactly the same way as someone solves it on the body level in cold weather: a headgear should be worn on top of the system to limit the heat flow and make it comfortable.' But it would be such a shame to cover up the golden heat-harvesting headband with a hat."

LoneHighway writes "Salon.com has a write up of what is being called an epic feat of Nerdity, the "Trinity, Help!" scene from The Matrix has been recreated using only Legos. It took 440 hours for Trevor Boyd and Steve Ilett to create Lego Matrix Trinity Help, which is a perfect shot-by-shot remake of a short but memorable scene from the Wachowski Brothers’ masterpiece, executed via stop-motion animation and a nearly infinite amount of Legos. They even provide a split screen comparison to the original. Very cool!"

xchg writes in with a somewhat speculative, though plausible, piece from WiseAndroid claiming that Google is gearing up for an all-out assault on the mobile-phone market that will include a new, Google-branded handset and the first comprehensive Google phone service with unlimited free calls. "The real breakthrough, however, will come with the marriage of the Googlephone to Google Voice, the Californian company’s high-tech phone service. Google Voice gives US users a free phone number and allows unlimited free calls to any phone in the country — landline or mobile. International calls start from... just over a penny a minute. Google Voice also uses sophisticated voice recognition to turn voicemails into emails, can block telemarketing calls automatically and offers free text messaging. Google sounded its intentions two weeks ago when it purchased a small company called Gizmo5... [E]xperts are predicting that the Googlephone will be launched in the US early next year."

airshowfan writes "Boeing's directed-energy weapons (a.k.a. frickin' laser beams) have been getting some attention lately. The Advanced Tactical Laser (ATL) is a C-130 that famously burned a hole through a car's hood, and the YAL-1 AirBorne Laser is a 747 that shoots a laser from its nose that is powerful enough to bring down an ICBM. But even cooler is the Mobile Active Targeting Resource for Integrated eXperiments (MATRIX), a laser that is mounted on a truck (which probably costs less than a 747, but who knows) and that can shoot down small aircraft, as shown in the picture on this article. (The Laser Avenger supposedly also has this capability). We live in the future!"

An anonymous reader sends in this moderately disturbing quote from Gizmodo: "I'm touching a wet slab of protein, what feels like a paper-thin slice of bologna. It's supple, slimy, but unlike meat, if you were to slice it down the center today, tomorrow the wound would heal. It's factory-grown living tissue. The company behind the living, petri-dish-grown substance known as Apligraf hates my new name for it: meat band-aid. 'It's living,' Dr. Damien Bates, Chief Medical Officer at Organogenesis, corrects me. 'Meat isn't living.' But no one argues with me that this substance is really just a band-aid. A living, $1500 band-aid, I should say. Apligraf is a matrix of cow collagen, human fibroblasts and keratinocyte stem cells (from discarded circumcisions), that, when applied to chronic wounds (particularly nasty problems like diabetic sores), can seed healing and regeneration. But Organogenesis is not interested in creating boutique organs for proof of concept scientific advancement. They're a business in the business of mass tissue manufacturing — and the first of its kind."