Slashdot Mirror

eldavojohn writes "How do you remove arsenic from water? Well, a research team has discovered that adding and removing nanorust works well. From the article, 'The team added nanoscale iron oxide to contaminated water, where it clumped together with the arsenic. They then magnetized the nanoparticles with an electromagnet and pulled them out. "We only needed a surprisingly weak magnetic field," says Colvin. "In fact, we could pull then out with just a hand-held magnet, making this a very practical method.' Big news for developing nations that are plagued with non-potable drinking water."

dptalia writes, "Scientists think they've found a way to harness the energy of waves to desalinate salt water. Currently desalination is an energy-intensive process, but this new design harnesses the renewable energy of waves to produce fresh water. Many countries depend on desalinated water to support their populations, and this invention could lower the cost of water generation." Production versions of the "desalination ducks" would be about 10 meters in diameter and 20 meters long. Each would supply water for more than 20,000 people.

MattSparkes writes "The first UN-sponsored Internet Governance Forum (IGF) meeting is taking place next week in Athens, which aims to 'contribute to a better understanding of how the internet can be used to its full potential.' It is likely that several countries will object to the US monopoly on Internet governance, as they did at the last meeting, where the US cited fears of a loss of freedom of speech as the reason for retaining power. Other topics to be discussed include online security, access for non-English users and spam."

An anonymous reader writes "Here's an interesting article about a robotics experiments designed to test the benefits of coupling visual information to physical movement. This approach, known as embodied cognition, supposes that biological intelligence emerges through interactions between organisms and their environment. Olaf Sporns from Indiana University and Max Lungarella from Tokyo University believe strengthening this connection in robots could make them smarter and more intuitive."

dptalia writes "In trolling recent patents, Barry Fox found one for a throwable game controller. This controller would be shaped like a football or a frisbee and be connected wirelessly to a console. The user could then play digital games like catch, or have a distance throwing competition. The controllers have embedded GPS, an altimeter, and an accelerometer to be able to determine the accuracy of the throws."

MattSparkes writes "Smart surveillance systems could identify crimes as they take place, if a computer vision system developed at the University of Texas goes into production. The system is capable of classifying behaviour as friendly or violent. In the past there have been attempts to spot unusual behaviour, but this required subsequent user classification. These new systems may keep us more secure, but is it worth sacrificing our privacy for? And will we see false positives, where police cars screech to a halt beside hugging couples?"

MattSparkes writes "Researchers claim to have produced software that automatically generates timely video news bulletins, presented by computer-animated characters, which could revolutionise current affairs broadcasting. The system, called News at Seven, takes RSS news feeds and does some formatting before passing it to an avatar from Half-Life 2 to read out. Based on keywords, the system also draws in video from YouTube and images from Flickr to supplement the speech."

An anonymous reader writes, "NewScientistTech has an interesting story about a river sensor network that not only measures water depth and flow, but also forms a wireless computing grid to calculate possible flooding scenarios." From the article: "If the river's behavior starts to change, the network uses the data collected to run models and predict what will happen next. If a flood seems likely — because it is rapidly rising and moving quickly — the network can send a wireless warning containing the details... [A researcher said:] 'One end goal would be that people living in areas that flood can install these themselves. They are simple and robust enough to make that possible.'"

MattSparkes writes, "Today's quantum computers are not sophisticated enough to do anything malicious to your online bank account; the field is in its infancy. However, there are in theory more ways to attack quantum computers than classical ones. As quantum networking takes off, this is going to become a larger and more immediate problem." The Wikipedia article correctly identifies as an unsolved problem in physics the question of whether it is possible to construct a practical computer that performs calculations on qubits.

MattSparkes writes, "Today's quantum computers are not sophisticated enough to do anything malicious to your online bank account; the field is in its infancy. However, there are in theory more ways to attack quantum computers than classical ones. As quantum networking takes off, this is going to become a larger and more immediate problem." The Wikipedia article correctly identifies as an unsolved problem in physics the question of whether it is possible to construct a practical computer that performs calculations on qubits.

suntac writes to mention an article on New Scientist, reporting on a Stanford study of internet addiction. The study finds that the U.S. is 'rife' with internet addicts, who may be as addicted as alcoholics to their sweet sweet net connection. From the article: "Nearly 14% of respondents said they found it difficult to stay away from the internet for several days and 12% admitted that they often remain online longer than expected. More than 8% of those surveyed said they hid internet use from family, friends and employers, and the same percentage confessed to going online to flee from real-world problems. Approximately 6% also said their personal relationships had suffered as a result of excessive internet usage. 'Potential markers of problematic internet use are present in a sizeable portion of the population,' the researchers note." While obviously allowing relationships to suffer so you can surf eBay is a problem, where is the line between relying on the internet for news and information and addiction?

holy_calamity writes "A swarm of robots has been demonstrated that can get together to transport an object too heavy for a single bot. Each robot is loaded with the same simple set of behaviors but more complex intelligence emerges from a group interacting. Two videos show the robots in action, and using a more complex behavior necessary when they're set to short sighted mode and can't see the target location from the starting point."

An anonymous reader writes "Aladdin has come up with a new way of restricting the data stored on optical discs. It's 'XCD' format has a chip built directly into the disc and which fits into a USB port. So, a user needs to plug the disc into their computer to access a cryptophic key before being able to use the data stored on the disc (presumably in some sort of proprietary player)."

An anonymous reader writes "Researchers at Columbia University and the University of New Mexico have built a DNA -powered computer that is unbeatable at Tic-Tac-Toe. Although it's much slower than a normal computer, the researchers say their proof-of-concept system could help them develop new techniques for sorting and analyzing viruses and DNA mutations."

Stefan vd Linden writes, "An international team of scientists has discovered a substance to heal bleeding wounds within seconds. They're using a solution of protein molecules that self-organizes into a biodegradable gel. Until now they've only tested it on animals, but the tests were highly successful. From the article: 'Some surgeons are already excited about the material. "I see great potential in the eye field, the gastro-intestinal field, and in neurosurgery," says Dimitri Azar, head of ophthalmology at the University of Illinois at Chicago, US. "In the eye, even a drop of blood will blur your vision for a long time," Azar adds. "A material that would stop the bleeding could lead to a paradigm shift in how we practice surgery in the eye."'"

holy_calamity writes "Entering passwords using a tactile interface would remove two of the main vulnerabilities of using keyboards and alphanumeric passwords say UK researchers. They're using sequences of tactile icons on a VTPlayer tactile mouse instead. Shapes are displayed using the 16-pin tactile displays under the user's fore and middle fingers. As well as being almost impossible for anyone else to observe, tactile passwords can't be guessable in the same way as many conventional ones, they say. A video shows it all in action." Not that the video really helps explain it very well.

An Ac writes, "By coating 30-nanometre-long chunks of tobacco mosaic virus with platinum nanoparticles, researchers at the University of California, Los Angeles, have created a transistor with very fast switching speed. They say it could eventually be used to make memory chips for MP3 players and digital cameras. A device fitted with such a virus-chip would access data much more quickly than one using flash memory."

An AC writes,"NewScientistTech has a story about robotic whiskers capable of sensing shape and texture in a similar way to those belonging to rats and seals. The 'bending moment,' or torque, exerted at the base of each whisker is used to extract feature information. The artificial whiskers could be used on interplanetary rovers, or allow underwater vehicles to track moving objects by their wake. Check out the slightly creepy video of them stroking a sculpted face."

MattSparkes writes, "A Minnesota company, VeraTech, has applied for a patent on an unmanned drone that is nearly invisible to the naked eye. The Phantom Sentinel takes advantage of the phenomenon where fast moving objects appear as only a blur, so it fades out of view once it speeds up. This is achieved by rotating the entire craft. The center of gravity is in open air between two of the blade-like wings. There are some videos of a prototype in action on the VeraTech site." The company says you could get usable video of the terrain by processing the images from a spinning camera. One version of the drone is small enough to launch by throwing it like a boomerang. And it folds for travel.

TechFreep writes to mention a NewScientist article about a new mucus-riding robot, intended for use in medical examinations of the intestinal tract. The snail-like bot, it is hoped, will be easier on the internal organs of patients than similar robots which use small leg-like structures. From the article: "Dodou is testing a polymer material that clings to proteins found in the mucus that lines the gut. She measured the polymer's sticky properties in the lab using sections of pig gut, and also examined the way the polymer's stickiness can be 'switched off' by spraying it with water. This could allow a robot to move in a manner similar to a snail, which alternately makes itself sticky and slippery by exerting pressure with its body."

dfenstrate writes "The latest New Scientist has an article about an engine that exploits relativity and microwaves to generate thrust. There is a working prototype." From the article: "Roger Shawyer has developed an engine with no moving parts that he believes can replace rockets and make trains, planes and automobiles obsolete ... The device that has sparked their interest is an engine that generates thrust purely from electromagnetic radiation — microwaves to be precise — by exploiting the strange properties of relativity. It has no moving parts, and releases no exhaust or noxious emissions. Potentially, it could pack the punch of a rocket in a box the size of a suitcase. It could one day replace the engines on almost any spacecraft. More advanced versions might allow cars to lift from the ground and hover."

An anonymous reader writes "NewScientistTech has an article up on the way 3D models of real cities are being uploaded into Google Earth to help town planners and architects envisage their designs. Researchers at the University of Arkansas have developed a method for rapidly mapping building, which they are using to reconstruct the rapidly-expanding town of Fayetteville. The researchers say tools like Google Earth and Sketchup could eventually help ordinary citizens get more involved in urban development."

Anonymous Pingu writes "The latest edition of New Scientist has a series of features on social networking. These include an analysis of the impact on our social attitudes by Sherry Turkle, a feature on the possible privacy implications of using sites like MySpace and Friendster, and a short science fiction piece by Bruce Sterling. It's certainly interesting that so many people post very revealing stuff about themselves on these sites."

Anonymous Pingu writes "The latest edition of New Scientist has a series of features on social networking. These include an analysis of the impact on our social attitudes by Sherry Turkle, a feature on the possible privacy implications of using sites like MySpace and Friendster, and a short science fiction piece by Bruce Sterling. It's certainly interesting that so many people post very revealing stuff about themselves on these sites."

Anonymous Pingu writes "The latest edition of New Scientist has a series of features on social networking. These include an analysis of the impact on our social attitudes by Sherry Turkle, a feature on the possible privacy implications of using sites like MySpace and Friendster, and a short science fiction piece by Bruce Sterling. It's certainly interesting that so many people post very revealing stuff about themselves on these sites."

On the heels of the news of Toshiba's proposed double-standard disk comes word that Warner Brothers engineers have applied for a patent on a triple-standard disk. The new disk would offer HD-DVD and Blu-Ray on one side and standard DVD on the other. From the article: "Warner's plan is to create a disk with a Blu-ray top layer that works like a two-way mirror. This should reflect just enough blue light for a Blu-ray player to read it okay. But it should also let enough light through for HD-DVD players to ignore the Blu-ray recording and find a second HD-DVD layer beneath." See the patent application, filed last month.

An anonymous reader writes "A safer and more practical way of storing and releasing hydrogen, discovered by two Arizona State University researchers, could lead to a new type of fuel cell capable of packing 10 times more energy. The key is apparently using the alkaline compound borohydride — 'a 30% solution of borohydride in water actually contains one-third more hydrogen than the same volume of liquid hydrogen.'"

An anonymous reader writes "New Scientist are running an article about a system which tailors the ads displayed on a screen according to what BlueTooth gadgets people are carrying. A bit like the billboards in Minority Report ." Awkward situations created by devices like this will be scenes in the sit-coms of tomorrow.

holy_calamity writes "Natual Language Programming researchers have developed a tool called Zeitgeist that can discover the meaning of new words for itself using Wikipedia. It looks for entries for words not in the WordNet database and works out their meaning by looking for known words linked to them. Development of the tool is focusing on using it to understand what bloggers (using slang and neologisms) are saying about companies' products."

New Scientist is reporting that in the not-so-distant future computer monitors, and televisions may utilize a color changing polymer that responds to a current instead of existing techniques. From the article: "Aschwanden and colleagues built arrays of 10 pixels, each 80 micrometers across. The pixels consist of a piece of polymer covered with ridges tipped with gold. When white light is shone at the polymer from one side it reflects out of the screen and is also split into different wavelengths by this 'diffraction grating'. However, a slit above the polymer ensures that only one wavelength of light escapes, giving the pixel its color. The pieces of polymer also contract in response to current, like simple muscles. As they do so, the fan of light-waves is moved, changing the color that is fed through the slits above and out of the screen. Cutting the current causes the muscle to return to its original state."

electric_mongoose writes "NewScientistTech has a story about paragliding military drones being developed by a US company called Atair Aerodynamics. These aircraft could be airdropped or ground launched and fly for over 48 hours carrying a 100 kilogram payload, including video surveillance equipment."

tasty_beanburger writes "NewScientistTech has a story about a full body version of Dance Dance Revolution. It uses vision recognition to award points after assessing a player's ability to correctly mimic silhouetted dance shapes. Check out the video clip of it being demoed at SIGGRAPH 2006."

electric_mongoose writes "NewScientistTech has a fascinating story about a paralysed man who can control a computer and robot arm using electrodes implanted in his brain. The electrodes measure neural signals generated when he concentrates on trying to move one of his paralysed limbs and software translates these imagined gestures into the movement of an on-screen cursor or a robotic arm. Other researchers have also revealed a way to dramatically boost the efficiency of similar brain implants in monkeys." If you don't have a handy human brain to play with, 9x320 writes points to a report on LiveScience of Wim van Eck's graduation project: a computer game similar to Pac-Man controlled, not by conventional computer code, but by the brain of an insect. From the article:"Instead of computer code, I wanted to have animals controlling the ghosts. To enable this, I built a real maze for the animals to walk around in, with its proportions and layout matching the maze of the computer game. The position of the animals in the maze is detected using colour-tracking via a camera, and linked to the ghosts in the game. This way, the real animals are directly controlling the virtual ghosts."

dylanduck writes "From the New Scientist Tech article: "Sticking a needle with a flaming plasma tip into your mouth may not at first strike you as much of an improvement on conventional dentistry. However, the plasma needle, which is cold and painless to the touch, could be just the panacea we have been waiting for.""

dylanduck writes "From the New Scientist Tech article: "Sticking a needle with a flaming plasma tip into your mouth may not at first strike you as much of an improvement on conventional dentistry. However, the plasma needle, which is cold and painless to the touch, could be just the panacea we have been waiting for.""

ozmanjusri writes to mention a Tokyo Institute of Technology project to record scents for later playback. The New Scientist article suggests this technology could be used in commercials and medical applications. From the article: "Simply point the gadget at a freshly baked cookie, for example, and it will analyse its odour and reproduce it for you using a host of non-toxic chemicals. The device could be used to improve online shopping by allowing you to sniff foods or fragrances before you buy, to add an extra dimension to virtual reality environments and even to assist military doctors treating soldiers remotely by recreating bile, blood or urine odours that might help a diagnosis."

Roland Piquepaille writes "It's not the first time that animal brain cells have been used in conjunction with nanoparticles. But now, a team of Israeli researchers have grown self-organizing networks of rat brain cells by binding them to carbon nanotubes. In a short article, New Scientist reports that these neural networks are remarkably stable, surviving for almost three months in the lab. These hybrid networks could be used in future biological sensors. For example, they could identify a poison by measuring its effect on such a network of brain cells."

An anonymous reader writes "New Scientist has a story about the most intensive computer program ever created. It runs on IBM's big beast, Blue Gene/L, at Lawrence Livermore National Laboratory in California and carries out 207.3 teraflops (trillion cacluations per second). The program, called Qbox, performs very complex quantum calculations to simulate the behaviour of thousands of atoms in three dimensions. Wow."

holy_calamity writes "New Scientist is reporting on a new open source tool for writing up scientific experiments for computers, not humans. Called EXPO, it avoids the many problems computers have with natural language, and can be applied to any experiment, from physics to biology. It could at last let computers do real science - looking at published results and theories for new links and directions."

holy_calamity writes "NewScientist is reporting on a new robot modeled on a worm to crawl through your intestines made by European researchers. The plan is to replace endoscopes, but from the look of the videos these things are too scary to ever be allowed into hospitals."

lee1 writes "New Scientist reports on an 'interactive computer display that keeps track of multiple users by differentiating between their touch'. The system consists of a touch-sensitive screen that can be operated by several users simultaneously. When a user touches the screen an electrical signal is sent through their body and picked up by a receiver located in their chair, telling a computer precisely where the screen was touched and by whom. Applications could include system access control, safer vehicle controls, and smarter videogames. The bottom line, in the words of one of the inventors: 'If the controls know who is operating them, they can behave appropriately.' The movie even has funkier than average background music."

galactic_grub writes "Researchers at Stanford have developed a robot that mimics the extraordinary climbing skills of the Gecko. These creatures can climb sheer surfaces thanks to the intermolecular forces exerted by millions of tiny hairs their feet, called setae. The robot, Stickybot, has polymer pads on its feed with synthetic setae. Check out the video of it climbing up a sheet of glass."

Yetihehe writes "Nuclear fusion could become a more viable energy solution with the discovery of way to prevent super-hot gases from causing damage within reactors. The potential solution, tested at an experimental reactor in San Diego, US, could make the next generation of fusion reactors more efficient, saving hundreds of millions of euros a year."

galactic_grub writes to tell us that engineers in Portugal have built and flown a plane with no wires or mechanical connections between the major systems, only a wireless network. From the article: "Tests flights carried out in Portugal have shown that the system works well. Cristina Santos, at Minho University in Portugal, who developed the plane, says the aim is primarily to reduce weight and power requirements. 'Also, if you do not have the cables then the system is much more flexible to changes,' she says."

dylanduck writes "A baby is to be monitored by a network of microphones and video cameras for 14 hours a day, 365 days a year, in an effort to unravel the seemingly miraculous process by which children acquire language. I guess that's what happens when your pop works at MIT's Media Lab. Thankfully his parents can switch off the surveillance for 'private' moments and delete short scenes. All the footage is being classified by algorithms."

Billosaur writes "New Scientist is reporting that Baidu, China's largest search engine, is launching its own version of Wikipedia. The site, Baidupedia, differs from the more well-known Wikipedia in that it is self-censoring." From the article: "Unlike Wikipedia, which allows anyone to create and modify entries, Baidupedia is censored by the company to avoid offending the Chinese government. Entries to the encyclopaedia must first pass a filtering system before being added to the site. Baidupedia bars users from including any 'malicious evaluation of the current national system', any 'attack on government institutions', and prevents the 'promotion of a dispirited or negative view of life'."

holy_calamity writes "New Scientist is reporting on a robotic tentacle developed thanks to funding from military agency DARPA. From the video it looks to have a lot of potential, I can almost feel it fastening around my ankle right now."

holy_calamity writes "A European project has produced this one-armed 'babybot' that learns like a human child. It experiments and knocks things over until it can pick them up for itself. Interestingly the next step is to build a fully humanoid version that's open source in both software and hardware."

Yetihehe writes "New Scientist is reporting about a new speech recognition tool that promises to let programmers write clean code without ever having to lay a finger on their keyboard. 'The tool, called VoiceCode, has been developed to help programmers with repetitive strain injury (RSI). This is a common affliction for people who spend a lot of time using a keyboard or mouse and causes pain in muscles, tendons and nerves in a sufferer's arms and back. Some estimates suggest 22% of all US computer programmers, or 100,000 people, suffer from the condition.'"

moon_monkey writes "Ever wondered whether a scientific paper was actually written by a robot? A new program developed by researchers at Indiana University promises to tell you one way or the other. It was actually developed in response to a prank by MIT researchers who generated a paper from random bits of text and got it accepted for a conference."