Slashdot Mirror
Domain: scienceblog.com
Stories and comments across the archive that link to scienceblog.com.
Stories · 148
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Grizzly-sized Catfish Caught in Thailand
An anonymous reader writes "Fishermen in northern Thailand have netted a fish as big as a grizzly bear, a 646-pound Mekong giant catfish, the heaviest recorded since Thai officials started keeping records in 1981. The behemoth was caught in the Mekong River and may be the largest freshwater fish ever found." -
Engineers Implant Vascularized 3D Muscles
An anonymous reader writes "A big hurdle to creating "replacement parts" for the human body is the lack of an internal, nourishing blood system in engineered tissues. Using a stem cell "cocktail," researchers say they've now overcome that, and successfully implanted engineered muscles in lab animals. Next stop, genuine implantable pecs?" -
A Step Toward the Diamond Age
An anonymous reader writes "Carnegie Institution researchers have learned to produce 10-carat, half-inch thick diamonds at rates of about 100 micrometers per hour, which in the diamond biz is blazingly fast. And these aren't cruddy, yellow diamonds either, but gem-quality stones. The goal: A 300 carat beast in whatever shape they want." -
Plastic That Changes Shape In Light
JLavezzo writes "Picture a flower that opens when facing the sunlight. In work that mimics that sensitivity to light, MIT Engineer Robert Langer and his German colleagues have created the first plastics that can be deformed and temporarily fixed into shape by light. This material could one day lead to medical devices that build themselves inside a patient's body, or door latches that can be opened with a flashlight. Additional commentary available at The Science Blog" -
Muon Detector Could Thwart Nuclear Smugglers
Ben Sullivan writes "Cosmic rays that bombard Earth could help catch smugglers trying to bring nuclear weapons into the U.S. Los Alamos scientists say they've developed a detector that can see through lead or other heavy shielding in truck trailers or cargo containers to detect uranium, plutonium or other n-bomb materials. Their technique, muon radiography, is reportedly far more sensitive than x-rays, with none of the radiation hazards of x-ray or gamma-ray detectors now used at border crossings. From Science Blog." -
Muon Detector Could Thwart Nuclear Smugglers
Ben Sullivan writes "Cosmic rays that bombard Earth could help catch smugglers trying to bring nuclear weapons into the U.S. Los Alamos scientists say they've developed a detector that can see through lead or other heavy shielding in truck trailers or cargo containers to detect uranium, plutonium or other n-bomb materials. Their technique, muon radiography, is reportedly far more sensitive than x-rays, with none of the radiation hazards of x-ray or gamma-ray detectors now used at border crossings. From Science Blog." -
Study Points to Sixth Sense in Humans
Ben Sullivan writes "St. Louis researchers say there's something to the notion of a 'sixth sense' in humans. A part of the brain known as the cingulate cortex, they've found, likely combines multiple, sometimes unconscious data streams to come to conclusions and send warning signals to the conscious mind. Example: Aboriginal tribesmen somehow sensed the impending danger of December's tsunami in time to flee to higher ground before the first sign of water." -
Patients get Solar Implants in Eyes
Ben Sullivan writes "As reported at Science Blog, ophthalmologists have implanted Artificial Silicon Retina microchips in the eyes of five patients to treat vision loss caused by retinitis pigmentosa. The implant is a 2mm chip that contains about 5,000 microscopic solar cells that convert light into electrical impulses. Already some patients have experienced improvements such as not bumping into objects around the house, and being able to read the time on a clock." -
Patients get Solar Implants in Eyes
Ben Sullivan writes "As reported at Science Blog, ophthalmologists have implanted Artificial Silicon Retina microchips in the eyes of five patients to treat vision loss caused by retinitis pigmentosa. The implant is a 2mm chip that contains about 5,000 microscopic solar cells that convert light into electrical impulses. Already some patients have experienced improvements such as not bumping into objects around the house, and being able to read the time on a clock." -
Atom Clusters Have Interesting Properties
An anonymous reader writes "Researchers have found clusters of aluminum atoms that have chemical properties similar to single atoms of of other elements. That, says Science Blog, could open the door to a new periodic table of cluster elements to create compounds with distinctive properties never seen before." -
Caffeine Withdrawal Recognized As Real
Ben Sullivan writes "What many Slashdotters have long known looks set to become official: Caffeine withdrawal is for real. New research at Johns Hopkins should result in it being included in the next edition of the DSM, and recognized by the World Health Organization." -
Speech Recognition in Silicon
Ben Sullivan writes "NSF-funded researchers are working to develop a silicon-based approach to speech recognition. "The goal is to create a radically new and efficient silicon chip architecture that only does speech recognition, but does this 100 to 1,000 times more efficiently than a conventional computer." Good use of $1 million?" -
Gene Therapy Turns Slackers Into Workaholics
DrLudicrous writes "According to a recent Reuters article, scientists have been able to cause monkeys to stop procrastinating by blocking the development of a dopamine receptor in the brain. The net result- the monkeys turned into workaholics. An article has appeared in the online version of Nature. Apparently, monkeys, just like human beings, tend to slack off on tasks until the very last minute. They become quite adept at judging how long they have till they absolutely must complete these tasks. The original article appears in the Proceedings of the National Academy of Sciences of the United States of America. An additional blurb appears here courtesty of Science Blog." NIH has a press release. -
Gene Therapy Turns Slackers Into Workaholics
DrLudicrous writes "According to a recent Reuters article, scientists have been able to cause monkeys to stop procrastinating by blocking the development of a dopamine receptor in the brain. The net result- the monkeys turned into workaholics. An article has appeared in the online version of Nature. Apparently, monkeys, just like human beings, tend to slack off on tasks until the very last minute. They become quite adept at judging how long they have till they absolutely must complete these tasks. The original article appears in the Proceedings of the National Academy of Sciences of the United States of America. An additional blurb appears here courtesty of Science Blog." NIH has a press release. -
NIST Studies Virus, DDoS Effect On Grids
Ben writes "Scientists at the National Institute of Standards and Technology (NIST) have launched a new campaign to study the effect of viruses and denial of services attacks on grid computing systems. Specifically, they're developing models to establish vulnerability and find ways of fixing problems. But a grid's very strength -- its distibuted nature -- makes it vulnerable, indeed, they're finding. (Via Science Blog)" -
Old Geek Invents New Stick
the morgawr writes "According to the EE Times and Science Blog, a scientist at University of Rhode Island has developed a new type of antenna design that, by increasing the efficiency, performs as well as the convential quarter-wave design but is only 1/3 as large." -
BIC-TCP 6,000 Times Quicker Than DSL
An anonymous reader writes "North Carolina researchers have developed an Internet protocol, subsequently tested and affirmed by Stanford, that hums along at speeds roughly 6,000 times that of DSL. The system, called BIC-TCP, beat out competing protocols from Caltech, University College London and others. The results were announced at IEEE's annual communications confab in Hong Kong." Update: 03/16 04:46 GMT by T : ScienceBlog suggests this alternate link while their site is down. -
Smarter Children Through Food Supplements
An anonymous reader writes "Baby rats (mmm...baby rats) fed a little extra choline in utero popped out with brain cells dramatically bigger and faster than pups who didn't receive the supplement. Duke University researchers say the implications are profound for humans and the future of learning." -
DARPA Grand Challenge Kicks Off March 13th
GillBates0 writes "A quick reminder that the DARPA Grand Challenge is due to kick off March 13, the coming Saturday." He points to this "quick recap of the teams participating in the event," as well as details about the available satellite feeds. "The Atlanta-Journal Constitution is running a story about the event today. Quoting Frank Dellaert, co-director of Georgia Tech's robotics lab from the article, 'I would have trouble driving some of these roads myself. I think it's beyond the capabilities of autonomous vehicles today.' (shameless school plug). We'll see if the participants can prove him wrong." Iphtashu Fitz adds a link to the New York Times' coverage of the trans-Mojave race, whose participants include "among other things a seriously tricked out motorcycle. The race is being run by the Pentagon, who is offering a $1 million prize to the builders of the first robot to successfully navigate a 200 mile route across the desert. ... a blog on ScienceBlog about the race has just started as well." -
Navy Unveils Polyglot Chat For Iraq
An anonymous reader writes "According to ScienceBlog, the U.S. Office of Naval Research, trying to keep friendly armies in Iraq from accidentally blowing each other to smithereens, is helping create software that connects instant messaging (IM) with machine translation (MT). The result: Chat software to be used in Iraq that automatically translates your messages into the correct language of the reader, called the the Coalition Chat Line - it's 'getting rave reviews from U.S. and allied-coalition personnel.'" -
Comic Book Physics
An anonymous reader writes "Seems many of the feats of SpiderMan, Superman and other superheroes obey the basic requirements of physics. So says a University of Minnesota physicist who uses nothing but comics to teach the subject. 'Comic books get their science right more often than one would expect ... I was able to find examples in superhero comic books of the correct descriptions of basic physical principles for a wide range of topics, including classical mechanics, electricity and magnetism, and even quantum physics.' Especially cool: Why Krypton *had* to explode." -
No Harm, No Foul in Heavy Net Use
An anonymous reader writes "Breathe easy, addicts. A new study says there's no harm in extended Internet use, contrary to earlier research indicating otherwise. Science Blog reports on an a University of Alberta study that found it can even be therapeutic for those 'facing social isolation and loneliness.'" So rejoice, everyone reading this on Sunday afternoon. -
Head Injury Induces Foreign Accent Syndrome
An anonymous reader writes "Researchers have identified a rare disorder in which people, usually who have suffered a brain injury, find themselves speaking with a foreign accent. As reported by Science Blog, a Florida woman found herself speaking with a British accident after a stroke left her partially paralyzed. Fewer than 20 cases have been reported since 1919." -
Head Injury Induces Foreign Accent Syndrome
An anonymous reader writes "Researchers have identified a rare disorder in which people, usually who have suffered a brain injury, find themselves speaking with a foreign accent. As reported by Science Blog, a Florida woman found herself speaking with a British accident after a stroke left her partially paralyzed. Fewer than 20 cases have been reported since 1919." -
HP, Princeton Develop New Memory Material
An anonymous reader writes "Hewlett-Packard and Princeton researchers say they've developed a hybrid material that could be used for super-compact electronic memory, making the CD, DVD and similar media seem enormous and clunky by comparison. As reported by Science Blog, 'The researchers achieved the result by discovering a previously unrecognized property of a commonly used conductive polymer plastic coating. Their memory device combines this polymer, which is inexpensive and easy to produce, with very thin-film, silicon-based electronics.'" -
Late Night Gaming Tweaks The Brain
An anonymous reader writes "Science Blog reports that new research suggests late-night PC gaming tweaks your body's biological clock and melatonin levels, potentially leading to a class of terminally tired techies." According to the survey from the Akita University School Of Medicine in Japan, "performing an exciting video display terminal task fitted with a bright display suppresses the nocturnal changes in melatonin concentration and other elements of our biological clocks. In other words.. [it] might just be the physiological cause of a poor night's sleep." -
Diamond-coated Steel
An anonymous reader writes "A Dutch chemist has successfully coated steel with a layer of diamond, opening the possibility for insanely strong tools that almost never wear out -- not to mention armor tough as, well, diamond-coated nails. From Science Blog." -
Diamond-coated Steel
An anonymous reader writes "A Dutch chemist has successfully coated steel with a layer of diamond, opening the possibility for insanely strong tools that almost never wear out -- not to mention armor tough as, well, diamond-coated nails. From Science Blog." -
Compute Google's PageRank 5 Times Faster
Kimberley Burchett writes "CS researchers at Stanford University have developed three new techniques that together could speed up Google's PageRank calculations by a factor of five. An article at ScienceBlog theorizes that "The speed-ups to Google's method may make it realistic to calculate page rankings personalized for an individual's interests or customized to a particular topic."" -
'Spintronic' Devices Coming from Caltech
An anonymous reader writes "Boffins at Caltech and UC Santa Barbara say a basic discovery in magnetic semiconductors could result in a new generation of "spintronic" devices. The physicists say the new phenomenon, called the giant planar Hall effect, has to do with what happens when the spins of current-carrying electrons are manipulated. Practical applications? New paradigms in information storage, magnetic logic to replace transistors as switches in certain applications and possibly use of the quantum states of the spins themselves for logic gates in future quantum computers. Found in the Science Blog." -
'Spintronic' Devices Coming from Caltech
An anonymous reader writes "Boffins at Caltech and UC Santa Barbara say a basic discovery in magnetic semiconductors could result in a new generation of "spintronic" devices. The physicists say the new phenomenon, called the giant planar Hall effect, has to do with what happens when the spins of current-carrying electrons are manipulated. Practical applications? New paradigms in information storage, magnetic logic to replace transistors as switches in certain applications and possibly use of the quantum states of the spins themselves for logic gates in future quantum computers. Found in the Science Blog." -
Tiny Bubbles Key to Cooling Crazy Hot CPUs
Smaz writes "With future CPUs expected to generate as much as four times the heat of today's processors, wicking away that heat remains one of the biggest engineering hurdles in the biz. Researchers at Purdue have developed a pumpless liquid-cooling system that removes nearly six times more heat than existing systems. The trick, it seems, is in the tiny bubbles. From the Science Blog." -
Tiny Bubbles Key to Cooling Crazy Hot CPUs
Smaz writes "With future CPUs expected to generate as much as four times the heat of today's processors, wicking away that heat remains one of the biggest engineering hurdles in the biz. Researchers at Purdue have developed a pumpless liquid-cooling system that removes nearly six times more heat than existing systems. The trick, it seems, is in the tiny bubbles. From the Science Blog." -
Engineers Create World's First Transparent Transistor
An anonymous reader writes "Engineers at Oregon State University have created the world's first transparent transistor, a see-through electronics component that could open the door to many new products. The discovery "is a significant development in the context of transparent electronics," the scientists said in their publication, but pointed out it's too early to tell what applications may evolve. "There's no doubt it will open the door to some interesting new products and businesses, but we're not sure what all they might be." From Science Blog." -
Engineers Create World's First Transparent Transistor
An anonymous reader writes "Engineers at Oregon State University have created the world's first transparent transistor, a see-through electronics component that could open the door to many new products. The discovery "is a significant development in the context of transparent electronics," the scientists said in their publication, but pointed out it's too early to tell what applications may evolve. "There's no doubt it will open the door to some interesting new products and businesses, but we're not sure what all they might be." From Science Blog." -
MIT study: Diesel Beats Hydrogen For Green Car Power
An anonymous reader writes "Bummer story on Science Blog for people looking to gas up on the H. Even with aggressive research, the hydrogen fuel-cell vehicle will not be better than the diesel hybrid -- a vehicle powered by a conventional engine supplemented by an electric motor -- in terms of total energy use and greenhouse gas emissions by 2020, says a new MIT study. If we need to curb greenhouse gases within the next 20 years, improving mainstream gasoline and diesel engines and transmissions and expanding the use of hybrids is the way to go." -
MIT study: Diesel Beats Hydrogen For Green Car Power
An anonymous reader writes "Bummer story on Science Blog for people looking to gas up on the H. Even with aggressive research, the hydrogen fuel-cell vehicle will not be better than the diesel hybrid -- a vehicle powered by a conventional engine supplemented by an electric motor -- in terms of total energy use and greenhouse gas emissions by 2020, says a new MIT study. If we need to curb greenhouse gases within the next 20 years, improving mainstream gasoline and diesel engines and transmissions and expanding the use of hybrids is the way to go." -
Using Visible Light for Data Transfer
James Evans writes "Wired has an article about a New Zealand company which has developed a technology to transmit data at speeds up to 400Mbps up to 4km. They are working to have it more resistant to changes in weather, as well as increasing the distance. It has a number of advantages, including lack of federal regulation of the spectrum, as it is of course, visible light." In related terrestrial networking news, waytoomuchcoffee writes "Science Blog reports that the backbone for the World's Fastest Network is up and running. It's a fiber optic 40 gigabit per second connection between Chicago and LA. Teragrid is a project by the National Science Foundation designed to link up supercomputer centers." -
Using Visible Light for Data Transfer
James Evans writes "Wired has an article about a New Zealand company which has developed a technology to transmit data at speeds up to 400Mbps up to 4km. They are working to have it more resistant to changes in weather, as well as increasing the distance. It has a number of advantages, including lack of federal regulation of the spectrum, as it is of course, visible light." In related terrestrial networking news, waytoomuchcoffee writes "Science Blog reports that the backbone for the World's Fastest Network is up and running. It's a fiber optic 40 gigabit per second connection between Chicago and LA. Teragrid is a project by the National Science Foundation designed to link up supercomputer centers." -
Three Electrons Entangled
An anonymous reader writes "Science Blog reports on Michigan researchers who have managed to entangle three electrons at once. "The quantum entanglement of three electrons, using an ultrafast optical pulse and a quantum well of a magnetic semiconductor material, has been demonstrated in a laboratory at the University of Michigan, marking another step toward the realization of a practical quantum computer. While several experiments in recent years have succeeded in entangling pairs of particles, few researchers have managed to correlate three or more particles in a predictable fashion."" -
Three Electrons Entangled
An anonymous reader writes "Science Blog reports on Michigan researchers who have managed to entangle three electrons at once. "The quantum entanglement of three electrons, using an ultrafast optical pulse and a quantum well of a magnetic semiconductor material, has been demonstrated in a laboratory at the University of Michigan, marking another step toward the realization of a practical quantum computer. While several experiments in recent years have succeeded in entangling pairs of particles, few researchers have managed to correlate three or more particles in a predictable fashion."" -
'Selfish Routing' Slows the Internet
Smaz writes "Science Blog reports that a little love could speed things up on the Net. "Self-interest can deplete a common resource. It seems this also applies to the Internet and other computer networks, which are slowed by those who hurry the most. Fortunately, say computer scientists at Cornell University in Ithaca, N.Y. , there is a limit to how bad the slowdown can get. And after developing tools to measure how much the performance of a particular network suffers, they say, the way to get improved performance on the Internet is the same as the way to maintain air and water quality: altruism helps." -
'Selfish Routing' Slows the Internet
Smaz writes "Science Blog reports that a little love could speed things up on the Net. "Self-interest can deplete a common resource. It seems this also applies to the Internet and other computer networks, which are slowed by those who hurry the most. Fortunately, say computer scientists at Cornell University in Ithaca, N.Y. , there is a limit to how bad the slowdown can get. And after developing tools to measure how much the performance of a particular network suffers, they say, the way to get improved performance on the Internet is the same as the way to maintain air and water quality: altruism helps." -
No Future in American Science
An anonymous reader writes "Science Blog reports America is facing a dangerous shortage of eggheads: "America's top college graduates increasingly reject careers in science and engineering, researchers have found, raising concerns about America's technological future. Faced with the prospect of low-paid apprenticeships and training lasting a decade or more - and constricted job opportunities even after that - more of the brightest young Americans are instead pursuing the quicker and surer payoffs offered by business and certain professions.... 'With the notable exception of biological sciences, many of the top U.S. students with potential to become scientists are turning toward other career paths,' said one of the study's co-authors."" -
No Future in American Science
An anonymous reader writes "Science Blog reports America is facing a dangerous shortage of eggheads: "America's top college graduates increasingly reject careers in science and engineering, researchers have found, raising concerns about America's technological future. Faced with the prospect of low-paid apprenticeships and training lasting a decade or more - and constricted job opportunities even after that - more of the brightest young Americans are instead pursuing the quicker and surer payoffs offered by business and certain professions.... 'With the notable exception of biological sciences, many of the top U.S. students with potential to become scientists are turning toward other career paths,' said one of the study's co-authors."" -
Sandia's Smart Heat Pipe
An anonymous reader writes "Science Blog is reporting a story from Sandia National Laboratory, best known for its nuclear weapons research. "Evacuating heat is one of the great problems facing engineers as they design faster laptops by downsizing circuit sizes and stacking chips one above the other. The heat from more circuits and chips increase the likelihood of circuit failures as well as overly heated laps. "Space, military, and consumer applications, are all bumping up against a thermal barrier," says Sandia researcher Mike Rightley, whose newly patented "smart" heat pipe seems to solve the problem. The simple, self-powered mechanism transfers heat to the side edge of the computer, where air fins or a tiny fan can dissipate the unwanted energy into air." -
Rocking with RHIC
Pete (big-pete) writes "Scienceblog carries a copy of an article which describes some unexpected results found when Physicists started slamming gold atoms together at high speeds. The resulting temperature was tens of thousands of times hotter than the cores of the hottest stars, but the resulting stream of particles did not behave as predicted. The original article is also available from the University of Rochester's news site here." -
Rocking with RHIC
Pete (big-pete) writes "Scienceblog carries a copy of an article which describes some unexpected results found when Physicists started slamming gold atoms together at high speeds. The resulting temperature was tens of thousands of times hotter than the cores of the hottest stars, but the resulting stream of particles did not behave as predicted. The original article is also available from the University of Rochester's news site here."
