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| Two supercomputers now exceed petaflop/s barrier |
| KurzweilAI.net, Nov. 18, 2008IBM‘s Roadrunner, a 1.105 petaflop/s supercomputer at Los Alamos National Laboratory, retained the top spot as the world’s fastest supercomputer in the 32nd edition of the list of the world’s TOP500 supercomputers, released Friday.
A close second place went to the Cray XT5 supercomputer at Oak Ridge National Laboratory, called Jaguar. The system, only the second to break the petaflop/s barrier, posted a top performance of 1.059 petaflop/s in running the Linpack benchmark application.
The No. 3 system, Pleiades, is a new SGI Altix ICE system installed at NASA Ames, with 487 teraflop/s.
One petaflop/s represents one quadrillion floating point operations per second.
Nine of the top 10 supercomputers are located in the United States. The most powerful system outside the U.S. is the Chinese-built Dawning 5000A at the Shanghai Supercomputer Center, with 180 teraflops/s. |
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| Micro Fuel Cells Get Closer to Replacing Batteries |
| PhysOrg.com, Nov. 17, 2008Researchers at at the Institute of Electronics, Microelectronics and Nanotechnology (IEMN) in France and Sharp Corporation have pushed the state of the art in methanol fuel cells with micro-sized direct methanol fuel cells (microDMFC), achieving significantly improved fuel efficiency at room temperature.

In microDMFC, methanol and air circulate in microscopic microchannels etched in silicon wafers (Steve Arscott)
The energy density (measured in watt-hours per liter) of the new fuel cells is 385 Wh/L, compared to lithium ions batteries’ 270 Wh/L. While previous fuel cells have achieved higher power density, they haven’t operated at room temperature, which is essential for a commercial product.
According to IEMN’s Dr. Steve Arscott, the biggest challenges facing micro fuel cells are: (i) high-performance room-temperature operation, (ii) miniaturization for on-chip use, (iii) compatibility with existing system fabrication (CMOS, for example), (iv) avoidance of complicated pumps for fuel and air which use energy themselves, (v) use of an efficient silicon-based proton exchange membrane and diffusion layers (novel porous layers for example), (vi) full integration with a microchannel architecture, and (vii) fuel storage. |
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| A Computing Pioneer Has a New Idea |
| New York Times, Nov. 16, 2008The Convey supercomputer, to be introduced this week, promises to be simpler to program, using Intel-based field programmable gate arrays (FPGAs) that can be reconfigured with different hardware “personalities” to compute problems for different industries, initially aiming at bioinformatics, computer-aided design, financial services and oil and gas exploration.
Larry Smarr, director of the California Institute for Telecommunications and Information Technology at the University of California, San Diego, believes that the most important quality of the Convey computer is that it will be a green supercomputer. |
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| How to embed photos and videos in your video |
| KurzweilAI.net, Nov. 17, 2008
Stanford University AI researchers have developed software that allows anyone to insert a video or still photo on almost any planar surface in an existing video.
A “3D Surface Tracker Technology” algorithm first analyzes the video, with special attention paid to the section of the scene where the new image will be placed. The color, texture and lighting of the new image are subtly altered to blend in with the surroundings. Shadows seen in the original video will be seen in the added image as well. The result is a photo or video that appears to be an integral part of the original scene, rather than a sticker pasted artificially on the video.
Source: Stanford news release
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| Planet wobbles could reveal Earth 2.0 |
| NewScientist Space, Nov. 14, 2008Hidden alien moons that could harbor life can be revealed by the wobbles of their planets, says David Kipping of University College London. |
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| Ten-Minute Blood Test |
| Technology Review, Nov. 17, 2008A microfluidic diagnositc chip that identifies 35 proteins in 10 minutes, which normally takes multiple technicians hours to do, is being developed by Caltech and Institute for Systems Biology scientists.

(James Heath)
Measuring proteins in the blood can help doctors determine patients’ cancer risk and monitor the health of the elderly and people with chronic diseases. |
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| New Drug Bypasses Gene Mutations |
| Technology Review, Nov. 14, 2008A novel drug developed by PTC Therapeutics that enables the production of normal proteins from mutated DNA might one day help people with a variety of genetic diseases.
The drug has shown promise as a treatment for cystic fibrosis and muscular dystrophy, |
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| The Coming Wireless Revolution |
| Technology Review, Nov. 14, 2008Within the next couple of years, high-bandwidth (tens of megabits per second), far-reaching wireless Internet signals will soon blanket the nation, thanks to a decision by the FCC last week to allow use of megahertz frequency bands that were previously allocated to television broadcasters. |
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| Artificial diamonds – now available in extra large |
| New Scientist news service, Nov. 13, 2008A Carnegie Institute of Washington team has developed a process that could lead to cheap, mass-produced, perfect diamonds of unlimited size, using chemical vapour deposition (CVD), where carbon atoms in a gas are deposited on a surface to produce diamond crystals.
They got around the size limit by using microwaves to “cook” their diamonds in a hydrogen plasma at 2200 degrees C but at low pressure. Diamond size is now limited only by the size of the microwave chamber used. |
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| Vitamin C lowers levels of inflammation biomarker considered predictor of heart disease |
| PhysOrg.com, Nov. 13, 2008A new study led by researchers at the University of California, Berkeley adds to the evidence that vitamin C supplements can lower concentrations of C-reactive protein (CRP), a biomarker for elevated risk of cardiovascular problems and diabetes.
However, they also found that treatment with vitamin C is ineffective in persons whose levels of CRP are less than 1 milligram per liter. The researchers also said that for people with elevated CRP levels, the amount of CRP reduction achieved by taking vitamin C supplements in this study is comparable to that in many other studies of cholesterol-lowering drugs called statins. |
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| ‘Elixir of youth’ drug could fight HIV and ageing |
| New Scientist Health, Nov. 13, 2008TAT2, a drug that boosts telomerase and that is extracted from the Astragalus plant (used in Chinese medicine), has helped immune cells fight HIV and raises the possibility of slowing the aging process in other parts of our bodies, UCLA scientists have found. |
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| European conference on Computing and Philosophy issues call for papers |
| KurzweilAI.net, Nov. 13, 2008E-CAP, the European conference on Computing and Philosophy, has issued a call for papers that cover topics like robotics, AI, ambient Intelligence, computational linguistics, interdisciplinary approaches to the problem of consciousness, biological information, artificial life, and synthetic emotions.
The conference will be held at the Universitat Autònoma de Barcelona. Kevin Warwick is a keynote speaker. |
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| Artists stage street scenes to lurk in Google maps |
| PhysOrg.com, Nov. 12, 2008Exploring the boundaries of the real and virtual worlds, two artists staged multiple scenes for Google to capture for its Street View when it sent a camera equipped car down a Pittsburgh street in May to take photographs for its online mapping tool.

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| DNA strands become fibre optic cables |
| New Scientist news service, Nov. 12, 2008DNA strands with attached chromophores along their length can perform as nanoscale fiber optic cables, using a new technique developed by resarchers at Chalmers University of Technology in Gothenburg, Sweden.
The wires self-assemble and can self-repair: if a chromophore is damaged and falls free of the DNA strand, another will readily take its place. |
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| Better Wind Turbines |
| Technology Review, Nov. 13, 2008ExRo Technologies has developed a new kind of generator that could lower the cost of wind turbines while increasing their power output by 50 percent. |
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| Will the Next Ice Age Be Permanent? |
| New York Times, Nov. 12, 2008The world may be witnessing the final stages of a 50-million-year transition from a planet with a persistent warm climate and scant polar ice to one with greatly expanded ice sheets at both poles, two climatologists suggest in Nature.
The Nature paper goes on to propose that humans, as long as they have a technologically powerful society, would be likely to avert such a slide into a long big chill by adding greenhouse gases to the atmosphere. |
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| Led by Intel, Chip Makers Cut Outlook |
| New York Times, Nov. 12, 2008Intel warned on Wednesday that its sales could fall as much as 19 percent in the fourth quarter. Other major players in the chip industry, including Applied Materials and National Semiconductor, offered their own bleak outlooks.
The gloomy forecasts suggest that the technology industry is about to enter a slump that will rival or possibly exceed the dot-com bust of 2001. |
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| Backpacks for Cells |
| Technology Review, Nov. 12, 2008Living cells wearing microscopic “backpacks”–nanostructured polymer patches loaded with chemical cargo–might one day be able to ferry drugs or imaging agents to diseased tissue, MIT researchers say. |
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| Is nanotechnology a health timebomb? |
| NewScientist.com news service, Nov. 12, 2008Emerging nanomaterials need to undergo urgent testing to assess their effects on health and the environment, the UK’s Royal Commission on Environmental Pollution said in a report released this week. |
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| Google Uses Searches to Track Flu’s Spread |
| New York Times, Nov. 11, 2008The simple act of entering phrases like “flu symptoms” into Google, multiplied across millions of keyboards in homes around the country, has given rise to a new early warning system for fast-spreading flu outbreaks, called Google Flu Trends.

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| Quintet of proteins forms new, early-warning blood test before heart attack strikes |
| PhysOrg.com, Nov. 9, 2008A team of Johns Hopkins biochemists has identified five key proteins out of thousands secreted into blood draining from the heart’s blood vessels that may together or in certain quantities form the basis of a far more accurate early warning test than currently in use of impending heart attack in people with severely reduced blood flow, or ischemia. |
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| Now: The Rest of the Genome |
| New York Times, Nov. 10, 2008Only 1 percent of the genome is made up of classic genes. Scientists are exploring the other 99 percent and uncovering new secrets and new questions. |
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| Invention: Cancer nanobomb |
| New ScientistTech, Nov. 10, 2008Balaji Panchapakesan at the University of Delaware suggests destroying cancers in situ using exploding nanotubes.
His idea is to fill carbon nanotubes with water before injecting them into a tumor. The area is then zapped with laser light, which causes the water inside the nanotubes to boil. The tremendous pressure created by the heating causes the “nanobombs” to burst apart, killing nearby cells. |
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| Heart-powered pacemaker taps beats for energy |
| New ScientistTech, Nov. 10, 2008A prototype pacemaker tested in pigs gets one sixth of its power from the beats of the organ it regulates.
The generator, developed at Southampton University Hospital in the UK, consists of two small liquid-filled balloons placed at separate locations within the heart and connected by a silicone tube containing a moveable magnet.
As the heart beats, it squeezes each balloon in turn, pushing liquid through the tube and forcing the magnet to move back and forth past a coil embedded in the tube. This generates electricity that can be used to recharge the battery. |
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| 3D Display Offers Glimpse of Future Media |
| PhysOrg.com, Nov. 10, 2008
A 3D display system, developed by University of Southern California researchers, could one day transform visual entertainment.
The 3D display can project both virtual as well as real images from a recorded movie, is autosterescopic (viewers don´t need to wear special viewing glasses to see the 3D effects), and is also omnidirectional, so that multiple viewers can watch the display from all directions and heights.
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| Future Phones to Read Your Voice, Gestures |
| Wired Gadget Lab, Nov. 6, 2008Five years from now, it is likely that the mobile phone you will be holding will be a smooth, sleek brick — a piece of metal and plastic with a few grooves in it and little more.
That means speaking to your phone rather than typing, pointing with your finger instead of clicking on buttons, and gesturing instead of touching. You could listen to music, access the Internet, use the camera and shop for gadgets by just telling your phone what you want to do, by waving your fingers at it, or by aiming its camera at an object you’re interested in buying. |
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| Revolutionary auto already on the road |
| Union Leader, Nov. 9, 2008Inventor Dean Kamen has developed the world’s first Stirling hybrid electric car, using a Stirling engine to powers the features that would normally drain huge power from the battery (defroster and heater), and can go about 60 miles on a single charge of its lithium battery, with practically zero emissions.

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| World’s Largest Truck Goes Robotic |
| Discovery News, Nov. 6, 2008The largest truck in the world is about to become the largest robotic vehicle in the world. Computer scientists from Carnegie Mellon University have teamed up with engineers from Caterpillar to automate the 700-ton trucks, which are made to haul loads up to 240 tons from mines.

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| Engineering Edible Bacteria |
| Technology Review, Nov. 11, 2008Students at MIT and Caltech are using the techniques of synthetic biology to create bacteria that fight cavities, produce vitamins, and treat lactose intolerance, as part of the International Genetically Engineered Machines (iGEM) competition at MIT.
The new research might lead to a cheaper way to produce medicines or improve diets in the developing world. |
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| Honda Shows Off Latest Assisted-Walking Gadget |
| InformationWeek, Nov. 7, 2008Honda has demonstrated its latest wearable assisted-walking device, aimed at helping people working in factories and assembly lines or making a lot of deliveries.

To use the device, a person places its seat between his legs, puts on the gadget’s shoes, and then turns it on to start walking. Between the seat and shoes are motor-driven metal legs to assist the person in walking. The battery-powered device also has a computer and sensors that respond to the person’s movements. |
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| Students Hope BioBeer Can Fight Disease |
| Houston News, Nov. 7, 2008Rice University students are developing “BioBeer” brewed using yeast genetically modified to produce resveratrol, a naturally occurring compound found in red wine and a few other foods that has been shown to have cancer-fighting and cardiovascular benefits in mice. |
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| Mini nuclear plants to power 20,000 homes |
| The Guardian, Nov. 9, 2008Miniature nuclear power plants smaller than a garden shed and able to power 20,000 homes will be on sale within five years, say scientists at Los Alamos National Labs.
The US government has licensed the technology to Hyperion. Their goal: 10 cents a watt anywhere in the world at a cost of approximately $25 million each. For a community with 10,000 households, that’s $250 per home. |
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| Cloaking objects at a distance |
| The physics arXiv blog, Nov. 5, 2008Kong Kong University of Science and Technology physicists have come up with a way to cloak at a distance, using a “complementary material” to hide an object outside it.
All invisibility cloaks to date only work by hiding an object embedded inside them. Now a group of have worked out how to remotely cloak objects that sit outside a cloaking material. The trick is to make the cloaking material with optical properties that are exactly complementary to the space outside them. |
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| Proof by computer: Harnessing the power of computers to verify mathematical proofs |
| PhysOrg.com, Nov. 6, 2008A ground-breaking collection of four articles by leading experts, published today in the Notices of the American Mathematical Society (and freely available), explores new developments in the use of formal proof in mathematics.
Thomas Hales, one of the authors writing in the Notices, says that such a collection of proofs would be akin to “the sequencing of the mathematical genome.”
New computer tools have the potential to revolutionize the practice of mathematics by providing far more-reliable proofs of mathematical results than have ever been possible in the history of humankind. These computer tools, based on the notion of “formal proof,” have in recent years been used to provide nearly infallible proofs of many important results in mathematics. |
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| Feature films coming to YouTube |
| CNET News, Nov. 6, 2008YouTube will begin offering feature films produced by at least one of the biggest Hollywood movie studios possibly as early as next month in a new wide-screen player, according to an executive with a major entertainment company. |
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| Obama Election Ushering In First Internet Presidency |
| InformationWeek, Nov. 5, 2008The Obama administration is expected to build on a foundation of grassroots support in his private social network, on Facebook, YouTube, and Twitter, and a similar social networking for his legislative initiatives, recruiting supporters to lobby Congress to get his policies enacted into law. |
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