Domain: technologyreview.com
Stories and comments across the archive that link to technologyreview.com.
Stories · 1,042
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Tool Shows the Arguments Behind Wikipedia Entries
Al writes "A team of researchers at the Palo Alto Research Center have created a tool that shows how much argument has gone into crafting an entry. Ed Chi, a senior research scientist for augmented social cognition at PARC, obtained access to Wikipedia edit data and used it to build a tool that shows whether users have fought over the accuracy of a page by rapidly re-editing each other's changes. Experiments suggest that the method provides a better measure of 'controversy' than simply having Wikipedia editors add a warning to a suspect page. Their software, called Wikidashboard, serves up a Wikipedia entry, but adds an info-graphic revealing who has been editing it and how often it has been reedited. Of course, this doesn't reveal whether a Wikipedia entry is truly accurate, but it might at least highlight an underlying bias or vested interest." -
Tool Shows the Arguments Behind Wikipedia Entries
Al writes "A team of researchers at the Palo Alto Research Center have created a tool that shows how much argument has gone into crafting an entry. Ed Chi, a senior research scientist for augmented social cognition at PARC, obtained access to Wikipedia edit data and used it to build a tool that shows whether users have fought over the accuracy of a page by rapidly re-editing each other's changes. Experiments suggest that the method provides a better measure of 'controversy' than simply having Wikipedia editors add a warning to a suspect page. Their software, called Wikidashboard, serves up a Wikipedia entry, but adds an info-graphic revealing who has been editing it and how often it has been reedited. Of course, this doesn't reveal whether a Wikipedia entry is truly accurate, but it might at least highlight an underlying bias or vested interest." -
Tool Shows the Arguments Behind Wikipedia Entries
Al writes "A team of researchers at the Palo Alto Research Center have created a tool that shows how much argument has gone into crafting an entry. Ed Chi, a senior research scientist for augmented social cognition at PARC, obtained access to Wikipedia edit data and used it to build a tool that shows whether users have fought over the accuracy of a page by rapidly re-editing each other's changes. Experiments suggest that the method provides a better measure of 'controversy' than simply having Wikipedia editors add a warning to a suspect page. Their software, called Wikidashboard, serves up a Wikipedia entry, but adds an info-graphic revealing who has been editing it and how often it has been reedited. Of course, this doesn't reveal whether a Wikipedia entry is truly accurate, but it might at least highlight an underlying bias or vested interest." -
Snakelike Robot To Treat Soldiers During Battle
Al writes "Technology Review has an article about a snake-like robotic arm that could soon be used to treat injured soldiers as they lie on the battlefield. Developed by researchers at Carnegie Mellon University, the snakebot attaches to a stretcher and is controlled remotely using a joystick, allowing a doctor to assess a soldier's injuries as the bullets fly by. In future, the robotic arm will be fitted with sensors allowing it to measure vital signs and probe for internal bleeding. Here's a brief video of a prototype arm in action. The arm will become part of the US military's high-tech stretcher, called the Life Support for Trauma and Transport system. This is essentially a portable intensive-care unit, with a ventilator, defibrillator, and other physiological monitors, and it's currently being used in areas of Iraq and Afghanistan." -
Snakelike Robot To Treat Soldiers During Battle
Al writes "Technology Review has an article about a snake-like robotic arm that could soon be used to treat injured soldiers as they lie on the battlefield. Developed by researchers at Carnegie Mellon University, the snakebot attaches to a stretcher and is controlled remotely using a joystick, allowing a doctor to assess a soldier's injuries as the bullets fly by. In future, the robotic arm will be fitted with sensors allowing it to measure vital signs and probe for internal bleeding. Here's a brief video of a prototype arm in action. The arm will become part of the US military's high-tech stretcher, called the Life Support for Trauma and Transport system. This is essentially a portable intensive-care unit, with a ventilator, defibrillator, and other physiological monitors, and it's currently being used in areas of Iraq and Afghanistan." -
Snakelike Robot To Treat Soldiers During Battle
Al writes "Technology Review has an article about a snake-like robotic arm that could soon be used to treat injured soldiers as they lie on the battlefield. Developed by researchers at Carnegie Mellon University, the snakebot attaches to a stretcher and is controlled remotely using a joystick, allowing a doctor to assess a soldier's injuries as the bullets fly by. In future, the robotic arm will be fitted with sensors allowing it to measure vital signs and probe for internal bleeding. Here's a brief video of a prototype arm in action. The arm will become part of the US military's high-tech stretcher, called the Life Support for Trauma and Transport system. This is essentially a portable intensive-care unit, with a ventilator, defibrillator, and other physiological monitors, and it's currently being used in areas of Iraq and Afghanistan." -
Startup Hopes To Crowd-Source the Developing World
GalaticGrub writes "Technology Review has an article about a startup that wants to build a business out of crowd-sourcing the developing world. The company, called txteagle, seems to be interested mainly in using local knowledge to translate information into less common languages. The Finnish cell-phone company Nokia is a partner in the project, and CEO Nathan Eagle says that it provides a good example of a Western company that could benefit from txteagle workers. Eagle explains that Nokia is interested in 'software localization,' or translating its software for specific regions of a country. 'In Kenya, there are over 60 unique, fundamentally different languages,' he says. 'You're lucky to get a phone with a Swahili interface, but even that might be somebody's third language. Nokia would love to have phones for everyone's mother tongues, but it has no idea how to translate words like "address book" into all of these languages.'" -
Intel Develops Micro-Refrigerator To Cool Chips
Spacedonkey writes "Researchers at Intel, RTI International of North Carolina, and Arizona State University have made ultra-thin 'micro-refrigerators' for computer chips. The device uses a thermoelectric cooler made from nanostructured thin-film superlattice that can reduce the temperature by 55C when a current passes through it. In testing, it reduced the temperature on part of a chip by 15C without impairing its performance. The researchers say the component could be particularly useful for cooling hot spots that frequently occur on multi-core chips." -
A Step Toward an Invisibility Cloak
Technology Review has a writeup on the latest advance in the lab towards an invisibility cloak made of metamaterials, described this week in Science. We've been following this technology since the beginning. The breakthrough is software that lets researchers design materials that are both low-loss and wideband. "The cloak that the researchers built works with wavelengths of light ranging from about 1 to 18 gigahertz — a swath as broad as the visible spectrum. No one has yet made a cloaking device that works in the visible spectrum, and those metamaterials that have been fabricated tend to work only with narrow bands of light. But a cloak that made an object invisible to light of only one color would not be of much use. Similarly, a cloaking device can't afford to be lossy: if it lets just a little bit of light reflect off the object it's supposed to cloak, it's no longer effective. The cloak that Smith built is very low loss, successfully rerouting almost all the light that hits it." -
Nepomuk Brings Semantic Web To the Desktop, Instead
An anonymous reader writes "Technology Review has a story looking at Nepomuk — the semantic tool that is bundled with the latest version of KDE. It seems that some Semantic Web researchers believe the tool will prove a breakthrough for semantic technology. By encouraging people to add semantic meta-data to the information stored on their machines they hope it could succeed where other semantic tools have failed." -
'Lab On a Chip' Made From Paper and Tape
An anonymous reader writes "Researchers at Harvard University have developed a microfluidic device using ordinary paper and tape. Squares of paper are layered and connected with adhesive tape, channeling liquid horizontally and vertically in a very small area. Each square of paper has been treated with photoresist material, which creates channels that funnel liquid into tiny wells containing certain proteins or antibodies. The fluid interacts with that area of the paper and turns the well a certain color. It can, for example, detect varying concentrations of glucose. Lead researcher George Whitesides says such paper 'lab on a chip' tests may lead to a cost-effective, portable, and accurate method for diagnosing diseases in countries lacking reliable health care. The research appears in the current issue of the Proceedings of the National Academies of Science." -
Adobe Building Zoetrope, a Web "Time Machine"
Khuffie writes "Adobe, along with the University of Washington, are developing Zoetrope, an application that will offer a dynamic new view of the web. It is hard to explain on paper, but you can see a brilliant video of the application in action. Essentially, Zoetrope will allow users to travel back in time through a website, and see how the website gets changed. A user can create lenses on the website, for example, focusing on the price of a DVD at Amazon, and see how the price went up and down over the coming months. More interestingly, you can link lenses together across different websites, and for example, see how the price of gas was affected by say, the aggregated google news result of 'war.'" -
Adobe Building Zoetrope, a Web "Time Machine"
Khuffie writes "Adobe, along with the University of Washington, are developing Zoetrope, an application that will offer a dynamic new view of the web. It is hard to explain on paper, but you can see a brilliant video of the application in action. Essentially, Zoetrope will allow users to travel back in time through a website, and see how the website gets changed. A user can create lenses on the website, for example, focusing on the price of a DVD at Amazon, and see how the price went up and down over the coming months. More interestingly, you can link lenses together across different websites, and for example, see how the price of gas was affected by say, the aggregated google news result of 'war.'" -
Surgeons Weld Wounds Shut With Surgical Laser
Ruach writes "The promise of medical lasers goes beyond clean incisions and eye surgery: Many believe that lasers should be used not just to create wounds but to mend them too. Abraham Katzir, a physicist at Tel Aviv University, has a system that may just do the trick and is proving successful in its first human trials." -
1.4 Billion Pixel Camera To Watch For Asteroids
SpaceSlug writes "The world's largest digital camera is to be used to keep an eye out for asteroids heading towards Earth. The Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) has been built by researchers at MIT's Lincoln Lab. At its heart is a 1.4 billion pixel (or 1400 megapixel) camera that will scan the night sky looking for rogue near-Earth objects from atop Mount Haleakala in Maui Island, Hawaii. The system uses something called an orthogonal transfer CCD to remove atmospheric blur from images." -
HP Creates First Hybrid Memristor Chip
An anonymous reader writes "HP researchers have built the first functioning hybrid memristor-transistor chip. Lead researcher Stanley Williams and his team built the very first memristor — the '4th fundamental element' of integrated circuits after resistors, capacitors and inductors — back in April. Memristors can remember their resistance, leading to novel electronic capabilities. The new FPGA circuit uses memristors to perform tasks normally carried out by (many more) transistors and is therefore smaller, more power efficient and cheaper to make, HP says. Memristors could also turn out to be a more compact, faster alternative to flash memory." -
Google to Track TV Viewers More Closely
GalacticNoob writes "According to this post, Google is about to launch a TV advertising program that will let advertisers target audiences based on demographics including their household income. A satellite TV company called Echostar is working with credit-reporting company Equifax to cross-reference shows watched with income and buying habits (based on using Equifax's data)." -
Scientists Grow New Eyes (In Tadpoles)
MagnetDroid writes "Michael Zuber and his colleagues from SUNY Upstate Medical University have shown how to regrow frogs eyes using stem cells. Zuber's team genetically engineered the stem cells to express transcription factors that regulate eye development and, when they transplanted them into frog embryos that had had one eye removed, they regrew into fully functioning tadpole eyes. Unfortunately, the same trick doesn't work in mammals but Zuber hopes to find chemicals that activate the transcription factors without genetic engineering and says this might one day lead to new treatments for diseases linked to cell loss in the retina." -
New Generator Boosts Wind Turbine Efficiency 50%
MagnetDroid writes "A startup company based in Vancouver has developed a new kind of generator that could harvest much more energy from the wind. The design could not only lower the cost of wind turbines but increase their power output by 50 percent to as much as 100 percent, in some locations. Normally, when wind speeds drop, a turbine's engine becomes less efficient. The new engine, from ExRo Technologies, runs efficiently over a wider range of conditions. The design replaces a mechanical transmission with what amounts to an electronic one. Magnets attached to a rotating shaft create a current, but individual coils can be turned on and off electronically at different wind speeds." The company will begin field-testing a small, 5KW wind turbine by early next year. -
Untangling Web Information
Ostracus writes "The next big stage in the evolution of the Internet, according to many experts and luminaries, will be the advent of the Semantic Web — that is, technologies that let computers process the meaning of Web pages instead of simply downloading or serving them up blindly. Microsoft's acquisition of the semantic search engine Powerset earlier this year shows faith in this vision. But thus far, little Semantic Web technology has been available to the general public. That's why many eyes will be on Twine, a Web organizer based on semantic technology that launches publicly today." -
Untangling Web Information
Ostracus writes "The next big stage in the evolution of the Internet, according to many experts and luminaries, will be the advent of the Semantic Web — that is, technologies that let computers process the meaning of Web pages instead of simply downloading or serving them up blindly. Microsoft's acquisition of the semantic search engine Powerset earlier this year shows faith in this vision. But thus far, little Semantic Web technology has been available to the general public. That's why many eyes will be on Twine, a Web organizer based on semantic technology that launches publicly today." -
Cellphone Banking Helping To Fight Poverty In India
An anonymous reader writes "Technology Review is running an in-depth story about the way cellphone banking is transforming the lives of many poor people in India. By enabling users to manage a legitimate bank account and finance micro-loans, cellphones are a major force of social and economic change. It's perhaps not surprising, given that despite widespread poverty, India has the world's fastest-growing cellphone market and the second largest number of cellphone users (after China). The article mentions one Indian start-up, mChek, that is thriving as a result. There's also an excellent video report." -
Cellphone Banking Helping To Fight Poverty In India
An anonymous reader writes "Technology Review is running an in-depth story about the way cellphone banking is transforming the lives of many poor people in India. By enabling users to manage a legitimate bank account and finance micro-loans, cellphones are a major force of social and economic change. It's perhaps not surprising, given that despite widespread poverty, India has the world's fastest-growing cellphone market and the second largest number of cellphone users (after China). The article mentions one Indian start-up, mChek, that is thriving as a result. There's also an excellent video report." -
Open Source Hardware, For Fun and For Profit
ptorrone writes "Lots of open source hardware articles making the rounds this week, first up — Wired has an excellent piece on the Arduino project, an open source electronics prototyping platform, its founders and business model (they have sold over 50,000 units). And next up MIT's Tech Review has a profile on a few open source hardware businesses including NYC based Adafruit Industries best known for projects like the open source synth (x0x0b0x) and 'fun' projects like the Wave Bubble, the open source cell phone/wifi/GPS/RF jammer." -
Robotic Surgery On a Beating Heart
An anonymous reader writes "Serious heart surgery usually involves stopping the organ and keeping the patient alive with a cardiopulmonary bypass machine. But this risks brain damage and requires a long recuperation. Scientists at Harvard University and Children's Hospital Boston have now developed a device that lets surgeons operate on a beating heart with a steady hand. The 'robotic' device uses 3-D ultrasound images to predict and compensate for the motion of the heart so that the surgeon can work on a faulty valve as it moves. The approach should improve recovery times and give a surgeon instant feedback on the success of the procedure, the researchers say. Here's a (slightly gory) video of the device in action." -
Robotic Surgery On a Beating Heart
An anonymous reader writes "Serious heart surgery usually involves stopping the organ and keeping the patient alive with a cardiopulmonary bypass machine. But this risks brain damage and requires a long recuperation. Scientists at Harvard University and Children's Hospital Boston have now developed a device that lets surgeons operate on a beating heart with a steady hand. The 'robotic' device uses 3-D ultrasound images to predict and compensate for the motion of the heart so that the surgeon can work on a faulty valve as it moves. The approach should improve recovery times and give a surgeon instant feedback on the success of the procedure, the researchers say. Here's a (slightly gory) video of the device in action." -
Wikipedia's New Definition of Truth
Hugh Pickens writes "Simson Garfinkel has an interesting essay on MIT Technology Review in which he examines the way that Wikipedia has redefined the commonly accepted use of the word 'truth.' While many academic experts have argued that Wikipedia's articles can't be trusted because they are written and edited by volunteers who have never been vetted, studies have found that the articles are remarkably accurate. 'But wikitruth isn't based on principles such as consistency or observability. It's not even based on common sense or firsthand experience,' says Garfinkel. What makes a fact or statement fit for inclusion is verifiability — that it appeared in some other publication, but there is a problem with appealing to the authority of other people's written words: many publications don't do any fact checking at all, and many of those that do simply call up the subject of the article and ask if the writer got the facts wrong or right. Wikipedia's policy of 'No Original Research' also leads to situations like Jaron Lanier's frustrated attempts to correct his own Wikipedia entry based on firsthand knowledge of his own career. So what is Wikipedia's truth? 'Since Wikipedia is the most widely read online reference on the planet, it's the standard of truth that most people are implicitly using when they type a search term into Google or Yahoo. On Wikipedia, truth is received truth: the consensus view of a subject.'" -
Single Neuron Wired To Muscle Un-Paralyzes Monkeys
GalaticGrub writes "A pair of paralyzed monkeys regained the ability to move their arms after researchers wired individual neurons to the monkeys' arm muscles. A team of researchers at the University of Washington temporarily paralyzed each monkey's arm, then rerouted brain signals from a single neuron in the motor cortex around the blocked nerve pathway via a computer. When the neuron fired above a certain rate, the computer translated the signal into a jolt of electricity to the arm muscle, causing it to contract. The monkeys practiced moving their arms by playing a video game." -
Millions of Internet Addresses Are Lying Idle
An anonymous reader writes "The most comprehensive scan of the entire internet for several decades shows that millions of allocated addresses simply aren't being used. Professor John Heidemann from the University of Southern California (USC) used ICMP and TCP to scan the internet. Even though the last IPv4 addresses will be handed out in a couple of years, his survey reveals that many of the addresses allocated to big companies and institutions are lying idle. Heidemann says: 'People are very concerned that the IPv4 address space is very close to being exhausted. Our data suggests that maybe there are better things we should be doing in managing the IPv4 address space.' So, is it time to reclaim those unused addresses before the IPv6 crunch?" -
Now Even Photo CAPTCHAs Have Been Cracked
MoonUnit writes "Technology Review has an interesting article about the way CAPTCHAS are fueling AI research. Following recent news about various textual CAPTCHAs being cracked, the article notes that a researcher at Palo Alto Research Center has now found a way crack photo-based CAPTCHAs too. Most approaches are based on statistical learning, however, so Luis von Ahn (one of the inventors of the CAPTCHA) says it is usually possible to make a CAPTCHA more difficult to break by making a few simple changes." -
Replacing Fiber With 10 Gigabit/Second Wireless
Chicken_dinner writes "Engineers at Battelle have come up with a way to send data through the air at 10 Gigabits per second using point-to-point millimeter-wave technology. They used standard optical networking equipment and essentially combined two lower bandwidth signals to produce a 10Gb signal from the interference. They say the technology could replace fiber optics around large campuses or companies or even deliver high-bandwidth streaming within the home." -
Training Bacteria To Deliver Drugs?
Hugh Pickens writes "While it may seem unlikely that single-celled organisms could be trained to salivate like Pavlov's dog at the sound of a bell, researchers say that bacteria can 'learn' to associate one stimulus with another by employing molecular circuits. This raises the possibility that bioengineers could teach bacteria to act as sentinels for the human body, ready to spot and respond to signs of danger. As with Pavlov's dog, the bacteria in the model learn to build stronger associations between the two stimuli the more they occur together. Now called Hebbian learning, it's often expressed as a situation in which 'neurons that fire together wire together.'" (More below.) "Bacteria, of course, don't have synapses or nerve cells, but Eva Jablonka, who just published a paper on conditioning in single-celled organisms (PDF), says it seems 'quite possible at the theoretical level, and I don't see great obvious hurdles for the construction of the suggested vectors.' The trick will be to train bacteria to recognize chemical processes in the body that are associated with danger like an adverse and dangerous reaction to a drug, or to the presence of tumor cells." -
Germany Fired Up Over Clean Coal
MIT's Technology Review is reporting on the world's first coal-driven power plant designed to capture and store C02 emissions. "Vattenfall's small 30-megawatt plant burns the lignite in air from which nitrogen has been removed. Combustion in the resulting oxygen-rich atmosphere produces a waste stream of carbon dioxide and water vapor, three-quarters of which is recycled back into the boiler. By repeating this process, known as oxyfuel, it is possible to greatly concentrate the carbon dioxide. After particles and sulfur have been removed, and water vapor has been condensed out, the waste gas can be 98 percent carbon dioxide, according to Vattenfall. The separated carbon dioxide will be cooled down to -28 C and liquefied. Starting next year, the plan is to transport it by truck 150 miles northwest, to be injected 3,000 meters underground into a depleted inland gas field in Altmark. Ideally, in the future, the gas will be carried by pipeline to underground storage, says Vattenfall. " -
A Chinese Challenge To Intel
motang writes "Chinese government funded Godson-3 a CPU that is developed to bring personal computing to majority of Chinese people by the year 2010. Will this pose any threat to Intel?" -
California's Wireless Road Tolls Easily Hackable
An anonymous reader writes "Nate Lawson, a researcher at RootLabs, has found a way to clone the wireless transponders used by the Bay Area FasTrak road toll system. This means you can copy the ID of another driver onto your own device and, as a result, travel for free while others foot the bill. Lawson also raises the interesting point of using the FasTrak system to create false alibis, by overwriting one's own ID onto another driver's device before committing a crime. Luckily, Lawson wasn't sued before he could reveal his research, unlike those pesky MIT students." -
The US Swim Team's Secret Weapon, Science
Hugh Pickens writes "When American Swimmer Margaret Hoelzer goes for the gold tonight in the 200-meter backstroke, part of her success will be due to a new system developed by Tim Wei, a mechanical and aerospace engineer at Rensselaer Polytechnic Institute, that uses fluid dynamics to study human movement allowing scientists and coaches to study how fast and hard a swimmer pushes the water as he moves through it. 'Wei uses a tracking technique called digital particle image velocimetry, commonly used to measure the flow of small particles around an airplane or small fish or crustaceans in water.' Wei filtered compressed air in a scuba tank through a porous hose to create bubbles about a tenth of a millimeter in diameter. When an athlete swims through a sheet of bubbles that rises from the pool floor, a camera captures their flow around the swimmer's body and the images show the direction and speed of the bubbles, which Wei then translates into the swimmer's thrust using software that he wrote." -
3D Printing For Everyone
mmacx writes "Technology Review has up an article about Shapeways, a new online rapid-prototyping service that allows users to upload digital designs which are then printed on 3-D printers and shipped back. A spinoff from Philips Research, the service gives small businesses, designers, artists, and hobbyists access to prototyping tools that were once available only to the largest corporations. The fee for a typical printed object is $50-$150. Their video shows the steps behind the process." We've been talking about 3D printing for years. -
MIT Artificial Vision Researchers Assemble 16-GPU Machine
lindik writes "As part of their research efforts aimed at building real-time human-level artificial vision systems inspired by the brain, MIT graduate student Nicolas Pinto and principal investigators David Cox (Rowland Institute at Harvard) and James DiCarlo (McGovern Institute for Brain Research at MIT) recently assembled an impressive 16-GPU 'monster' composed of 8x9800gx2s donated by NVIDIA. The high-throughput method they promote can also use other ubiquitous technologies like IBM's Cell Broadband Engine processor (included in Sony's Playstation 3) or Amazon's Elastic Cloud Computing services. Interestingly, the team is also involved in the PetaVision project on the Roadrunner, the world's fastest supercomputer." -
Open-Source Multitouch Display
shankar writes "Engineers at Eyebeam, an art and technology center based in New York, have created a scaled-down open-source version of Surface, called Cubit. By sharing the Cubit's hardware schematics and software source code, the engineers are significantly reducing the cost of owning a multitouch table. 'Multitouch displays are not new technology; in fact, they've been built in research labs for decades. Mitsubishi Electric Research Labs created an iconic multitouch table called DiamondTouch; more recently, Jeff Han, founder of Perceptive Pixel, based in New York, developed wall-sized multitouch screens that he sells to corporations and major government agencies. But because of the falling costs of many touch-screen components, such as infrared light sources and small cameras and projectors, it's now becoming feasible for people without access to a lab or venture-capital money to make their own multitouch displays.'" -
New President for OLPC Organization
haroldag writes "After Walter Bender's resignation as president of OLPC, Charles Kane enters to take his place as the new boss. Kane says 'The OLPC mission is a great endeavor, but the mission is to get the technology in the hands of as many children as possible. Whether that technology is from one operating system or another, one piece of hardware or another, or supplied or supported by one consulting company or another doesn't matter. It's about getting it into kids' hands. Anything that is contrary to that objective, and limits that objective, is against what the program stands for.'" -
Why Life On Mars May Foretell Our Doom
Hugh Pickens writes "Nick Bostrom has an interesting interpretation on why the failure of the Search for Extra-Terrestrial Intelligence (SETI) for the past half-century is good news and why the discovery of life on Mars could foretell our doom. Bostrom postulates a 'Great Filter,' which can be thought of as a probability barrier and consists of one or more evolutionary transitions or steps that must be traversed at great odds in order for an Earth-like planet to produce a civilization capable of exploring distant solar systems." -
RallyPoint — The Computerized Combat Glove
MIT's Technology Review is reporting that a new input device, designed for soldiers, may soon be making an appearance. The "RallyPoint," a glove designed to allow soldiers to easily interact with wearable systems via sensors, could allow soldiers a feature-rich input device without having to put down their weapon. "Some U.S. soldiers in Iraq are already equipped with wearable computer systems. But the lack of efficient input devices restricts their use to safer environments, such as the interior of a Humvee or a base station, where the soldier can set down his weapon and use the keyboard or mouse tethered to his body. Now RallyPoint, a startup based in Cambridge, MA, has developed a sensor-embedded glove that allows the soldier to easily view and navigate digital maps, activate radio communications, and send commands without having to take his hand off his weapon." -
Record Setting Silicon Resonator Reaches 4.51 GHz
bibekpaudel brings news that researchers from Cornell University have developed a very small silicon microresonator that vibrates at the highest frequency ever recorded for such a device: 4.51 GHz. Typical quartz-crystal oscillators, commonly used in electronics as clock signals, are about a millimeter wide and operate in the KHz - MHz range. The newly developed microresonator measures 8.5 micrometers long and 40 micrometers wide, making it ideal for use in smaller circuits and microprocessing. Quoting: "One of the advantages of silicon microresonators is that they can be integrated directly into microchips using conventional manufacturing techniques, making them cheaper to produce and easier to fabricate small. Also, multiple resonators of different frequencies could be put on the same chip, says Ville Kaajakari, an assistant professor of electrical engineering at Louisiana Tech University. In a cell phone, for example, high-frequency resonators could filter out interference from other sources of radio signals." -
Peruvian Teachers Begin OLPC Training
eldavojohn writes "Today was the first day that Peruvian teachers from remote villages began training to use the OLPC in their day-to-day activities. From the article: 'Success of OLPC now depends largely on frontline teachers and, of course, parents and kids. Peru's effort, if successful, would be a model for other nations. In the training now under way, teachers must become versed not only in how to operate and maintain the laptops, but also in how to do their jobs within a newly laptop-centric educational model. The laptops will contain some 115 books, including textbooks, novels, and poetry, as well as art and music programs, cameras, and other goodies. What many of these kids won't get is Internet access: about 90 percent of the villages lack it, and may not get it anytime soon.'" -
China to Use Silver Iodide & Dry Ice to Control the Weather
eldavojohn writes "While we made light of it before, the MIT Review is taking a serious look at China's plans to prevent rain over their open 91,000 seat arena for The Olympics. From the article: 'China's national weather-engineering program is also the world's largest, with approximately 1,500 weather modification professionals directing 30 aircraft and their crews, as well as 37,000 part-time workers — mostly peasant farmers — who are on call to blast away at clouds with 7,113 anti-aircraft guns and 4,991 rocket launchers.' They plan on demonstrating their ability to control the weather to the rest of the world, and expanding on their abilities in the future." -
Intel Wi-Fi Provides 6 Mbps Over 100 km
MIT Technology Review describes a new Wi-Fi router from Intel capable of sending a Wi-Fi signal tens of miles with 6-Mbps performance. This is perfect for rural areas without Internet service, and for less developed countries interested in building out their Internet infrastructure but no means to lay expensive cable or fiber optics. The routers cost about $500 each, and you need two of them for a point-to-point connection. Quoting: "Intel's RCP platform rewrites the communication rules of Wi-Fi radios. Galinvosky explains that the software creates specific time slots in which each of the two radios listens and talks, so there's no extra data being sent confirming transmissions. 'We're not taking up all the bandwidth waiting for acknowledgments,' he says. Since there is an inherent trade-off between the amount of available bandwidth and the distance that a signal can travel, the more bandwidth is available, the farther a signal can travel." -
Identifying Manipulated Images
Jamie found a cool story at MIT Tech Review. (As an aside, it sits behind an interstitial ad AND on 2 pages: normally I reject websites that do that, but it's a slow news day, so I'm letting it through.) Essentially, software is used to analyze light patterns in still photographs. Once you can figure out where the light sources are, it becomes a lot easier to determine if an image has been photoshopped. -
MIT Picks Top 10 Emerging Technologies
DeviceGuru writes "MIT's Technology Review magazine has just published its annual list of the top ten emerging technologies. Dubbed the TR10, these revolutionary innovations are poised to have a dramatic impact on computing, medicine, nanotechnology, our energy infrastructure, and more, say the magazine's editors. The TR10 technologies this time around are: cellulolytic enzymes, reality mining, connectomics, offline web apps, graphene transistors, atomic magnetometers, wireless power, nanoradio, probabilistic chips, modeling surprise. More details on the TR10 appear in the March/April edition of Technology Review." -
A Virus that Attacks Brain Cancer
Ponca City, We Love You writes "In the past few years, scientists have looked to viruses as potential allies in fighting cancer. Now researchers at Yale University have found a virus in the same family as rabies that effectively kills an aggressive form of human brain cancer in mice. Using time-lapse laser imaging, the team watched vesicular stomatitis virus (VSV) rapidly home in on brain tumors, selectively killing cancerous cells in its path, while leaving healthy tissue intact. 'A metastasizing tumor is fairly mobile, and a surgeon's knife can't get out all of the cells,' says Anthony Van den Pol, lead researcher and professor of neurosurgery and neurobiology at Yale. 'A virus might be able to do that, because as a virus kills a tumor cell, it could also replicate, and you could end up with a therapy that's self-amplifying.' It's not yet clear why VSV is such an effective tumor killer, although Van den Pol has several theories. One possible explanation may involve a tumor's weak vascular system. Vessels that supply blood to tumors tend to be leaky, allowing a virus traveling through the bloodstream to cross an otherwise impermeable barrier into the brain, directly into a tumor." -
New Tools Available for Network-Centric Warfare
Reservoir Hill writes "MIT Technology Review reports that a new map-based application is the latest tool in the military's long-term plan to introduce what is sometimes called "network-centric warfare." The Tactical Ground Reporting System, or TIGR allows patrol leaders in Iraq to learn about city landmarks and past events and more than 1,500 junior officers in Iraq — about a fifth of patrol leaders — are using the map-centric application before going on patrol and adding new data to TIGR upon returning. By clicking on icons and lists, they can see the locations of key buildings, like mosques, schools, and hospitals, and retrieve information such as location data on past attacks, geotagged photos of houses and other buildings (taken with cameras equipped with Global Positioning System technology), and photos of suspected insurgents and neighborhood leaders. They can even listen to civilian interviews and watch videos of past maneuvers. "The ability ... to draw the route ... of your patrol that day and then to access the collective reports, media, analysis of the entire organization, is pretty powerful," says Major Patrick Michaelis. "It is a bit revolutionary from a military perspective when you think about it, using peer-based information to drive the next move. ... Normally we are used to our higher headquarters telling the patrol leader what he needs to think.""