Wireless Networking

ISPs Losing Interest In Citywide Wireless Coverage 98

The New York Times is running a story about how hope is fading for the implementation of municipal wireless access in cities across the US. Major cities and small towns alike are finding that ISPs are withdrawing from such plans due to the low profitability of ventures that are similar to Philadelphia's incomplete network. We've previously discussed Chicago's and San Francisco's wireless status, and also some of the stumbling blocks other cities have faced. From the Times: "In Tempe, Ariz., and Portland, Ore., for example, hundreds of subscribers have found themselves suddenly without service as providers have cut their losses and either abandoned their networks or stopped expanding capacity. EarthLink announced on Feb. 7 that 'the operations of the municipal Wi-Fi assets were no longer consistent with the company's strategic direction.' Philadelphia officials say they are not sure when or if the promised network will now be completed."
Earth

A Super-Efficient Light Bulb 468

Chroniton writes with news of a Silicon Valley company, Luxim, that has developed a tiny, full-spectrum light bulb, based on a plasma of argon gas, that gives off as much light as a streetlight while using less power. The Tic Tac-sized bulb operates at temperatures up to 6000K and produces 140 lumens/watt, almost ten times as efficient as standard incandescent lamps, and twice the efficiency of high-end LEDs. The new bulbs also have a lifetime of 20,000 hours. There's no mention of mercury or other heavy metals, which pose a problem for compact fluorescents.
Robotics

Doctors To Control Robot Surgeon With Their Eyes 99

trogador writes "Researchers from Imperial College London are improving the Da Vinci surgical robot by installing an eye-tracker, which allows surgeons to control the robot's knife simply by looking at the patient's tissues on a screen. Tracking the eyes can generate a 3D map, which in turn can make moving organs — like a beating heart — appear to stand still for easier operation. Other features include 'see-through' tissues on the surgeon's screen (so tumors can be seen underneath tissues) and 'no-cut' zones, places where the robot won't allow the surgeon to cut by mistake. Says ICL Professor Guang Zhong Yang, 'We want to empower the robot and make it more autonomous.'"
Input Devices

'Mind Gaming' Could Enter Market This Year 154

An anonymous reader writes "In an adapted version of the Harry Potter video game, players lift boulders and throw lightning bolts using only their minds. Just as physical movement changed the interface of gaming with Nintendo's Wii, the power of the mind may be the next big thing in video games. And it may come soon. Emotiv, a company based in San Francisco, says its mind-control headsets will be on shelves later this year, along with a host of novel "biofeedback" games developed by its partners. Several other companies — including EmSense in Monterey, California; NeuroSky in San Jose, California; and Hitachi in Tokyo — are also developing technology to detect players brainwaves and use them in next-gen video games."
Power

Microchip Powered by Body Heat 73

An anonymous reader writes "MIT and Texas Instruments researchers have designed a chip that they say could be up to 10 times more energy efficient than current technology. The chip's power consumption is so low that devices with the chip may even be able to be recharged using the owner's body heat." The intent is to use these in medical applications like pacemakers where one would expect to have the free power source.
Robotics

The World's Biggest Undersea Robot 81

Roland Piquepaille writes "According to redOrbit.com, companies installing subsea cables for telecommunications companies and pipelines for the oil industry now have a new tool, the UT-1 Ultra Trencher which is the world's biggest subsea robot. This beauty weighs 60 tons (out of the water) and has a length of 7.8 meters, a width of 7.8 meters and a height of 5.6 meters. In fact, it has the dimensions of a small house but is more expensive, carrying a price tag of about £10 million. It can move at a speed of 2 to 3 knots under the sea. And it can trench pipelines with a 1-meter diameter in deep waters of up to 1,500 meters."
Games

DirectX Architect — Consoles as We Know Them Are Gone 434

ThinSkin writes "DirectX architect Alex St. John swims against the current and predicts the demise not of PC gaming, but of game consoles, in an exclusive two-part interview at ExtremeTech. In part one, Alex blasts Intel for pushing its inferior onboard graphics technology to OEMs, insists that fighting piracy is the main reason for the existence of gaming consoles, and explains how the convergence of the GPU and the CPU is the next big thing in gaming. Alex continues in part two with more thoughts on retail and 3D games, and discusses in detail why he feels 'Vista blows' and what's to become of DirectX 10."
Portables

HTC Shift + ThinkPad X300 + MacBook Air = Perfect Notebook? 108

Tom's Hardware has an interesting look at the HTC Shift, the newest contender in the ultralight portable arena, with a strong compare and contrast to the other two heavyweights, the ThinkPad X300 and the Macbook Air. "As some of you know, I actually like the Macbook Air but found the Lenovo ThinkPad X300 to be a vastly more useful product in the class. I'm one of the few folks that have been using an early version of the HTC Shift , a smaller screened ultra light tablet with a keyboard and a touch screen which is superior to both offerings in some ways and just released on Amazon.com for $1500 (someone screwed up, this wasn't supposed to happen until next week). This got me thinking: The perfect next generation ultra-sexy notebook should be a blend of all three products."
Communications

Wireless Auction Ends With Mixed Feelings 62

Macworld is reporting that the conclusion of the wireless auction has ended with many participants having mixed feelings. While bigger companies hailed it as a success, including Google who didn't actually bid to win but was able to get open access rules introduced, many smaller companies were left feeling that they were doomed from the start. "A former mail carrier, McBride has been trying his luck at FCC auctions since 1996. He said new rules for the auction favored large companies with deep pockets. For example, the FCC shortened the amount of time that the winners would have to build their networks. "All that did was prevent small businesses from coming in. They were scared of the build-out requirements," he said."
Data Storage

Array-Based Memory May Put a Terabyte On a Chip 93

Lucas123 writes "A new type of flash memory, called array-based memory, could offer a terabyte of data on a single chip within the next decade by bypassing current NAND memory technology, which is limited by the miniaturization capability of lithography. According to the Computerworld story, start-up Nanochip Inc. is being backed by Intel and others, and over 11 years has made research breakthroughs that will enable it to deliver working prototypes to potential manufacturing partners next year. And by 2010, the first chips are expected to reach 100GB capacity."
Power

Buckyballs Can Store Concentrated Hydrogen 193

Pickens brings news that researchers from Rice University have discovered that it's possible to store hydrogen inside buckyballs. Hydrogen can be an excellent power source, but it is notoriously difficult to store. The buckyballs can contain up to 8% of their weight in hydrogen, and they are strong enough to hold it at a density that rivals the center of Jupiter. "Using a computer model, Yakobson's research team has tracked the strength of each atomic bond in a buckyball and simulated what happened to the bonds as more hydrogen atoms were packed inside. Yakobson said the model promises to be particularly useful because it is scalable, that is it can calculate exactly how much hydrogen a buckyball of any given size can hold, and it can also tell scientists how overstuffed buckyballs burst open and release their cargo."
Medicine

"Manhattan Project" For Prosthetic Arms 76

cortex tips us to a story about a nationwide effort to incorporate advanced technology into the next generation of prosthetic arms. Researchers for the DARPA-funded project are developing feedback techniques that range from sensors on the surface of the user's skin to electrodes implanted on the inside of the user's skull that intercept and interpret signals from the motor cortex. Quoting: "'Think about taking a sip from a can of soda,' Harshbarger says. The complex neural feedback system connecting a native limb to its user lets that user ignore an entire series of complicated steps. The nervous system makes constant automatic adjustments to ensure, for example, that the tilt of the wrist adjusts to compensate for the changing fluid level inside the can. The action requires little to no attention. Not so for the wearer of current prosthetic arms, for whom the act of taking a sip of soda precludes any other activity. The wearer must first consciously direct the arm to extend it to the correct point in space, then switch modes to rotate the wrist into proper position. Then he must open the hand, close it to grasp the soda can (not so weakly as to drop it but not so hard as to crush it), switch modes to bend the elbow to correctly place the can in front of his mouth, rotate the wrist into position, and then concentrate on drinking from the can of soda without spilling it."
Earth

Questions Arising On Mercury In Compact Fluorescents 560

Patchw0rk F0g sends in an article from MSNBC on how some environmentalists are having second thoughts on compact fluorescent bulbs. Their relative energy efficiency is unquestioned. The problem is the mercury — enough in one bulb to contaminate 1,000 gallons of water, even in newer low-mercury bulbs. The EPA has an 11-step cleanup process to follow when you break a CFL in your home. The specialized recycling facilities that are needed are thin on the ground — about one per county in California, one of seven states where it is illegal to dispose of CFLs in the general waste stream.
Wireless Networking

Google a "Happy Loser" In Spectrum Auction 162

Large cell service providers won almost all of the licenses in the recently concluded FCC spectrum auction. Google didn't get any and won't be entering the wireless business. Verizon Wireless was the big winner, laying out $9.4 billion for enough regional licenses in the "C" block to stitch together nationwide coverage, except for Alaska. On this spectrum Verizon will have to allow subscribers to use any compatible wireless device and run any software application they want. AT&T paid $6.6 billion, Qualcomm picked up a few licenses, and Paul Allen's Vulcan Spectrum LLC won a pair of licenses in the "A" block. One analyst called Google a "happy loser" because it got the openness it had pushed for. The AP's coverage does some more of the numbers.
Data Storage

How To Use a Terabyte of RAM 424

Spuddly writes with links to Daniel Philips and his work on the Ramback patch, and an analysis of it by Jonathan Corbet up on LWN. The experimental new design for Linux's virtual memory system would turn a large amount of system RAM into a fast RAM disk with automatic sync to magnetic media. We haven't yet reached a point where systems, even high-end boxes, come with a terabyte of installed memory, but perhaps it's not too soon to start thinking about how to handle that much memory.
It's funny.  Laugh.

MD Bill Would Criminalize Theft of Wireless Access 764

Pickens writes "A bill presented by Delegate LeRoy E. Myers Jr. to the Maryland House of Delegates would criminalize purposely surfing the Internet on someone else's wireless connection. The bill would make intentional unauthorized access to another person's computer, network, database, or software a misdemeanor with a penalty up to three years imprisonment and a fine of up to $1,000. The Maryland public defender's office has submitted written testimony opposing the specific ban and penalty suggested in Myers' bill. Noting that wireless connections are becoming common in neighborhoods, the written testimony says: 'A more effective way to prevent unauthorized access would be for owners to secure their wireless networks with assistance where necessary from Internet service providers or vendors.'"
Television

BBC Micro Creators Reunite In London 213

mustrum_ridcully writes "This week some of the original creators from Acorn Computers who developed the BBC Micro home computer are coming together again at the Science Museum in London to discuss the legacy of the computer fondly known in the UK as 'the Beeb'. This news is being carried, of course, on the BBC. The BBC Micro sold some 1.5 million units and helped fund Acorn's development work on the Acorn RISC Machine processor — also known as the ARM processor used today in countless mobile and embedded devices."
Robotics

Robots Fly Over Antarctica 45

Roland Piquepaille writes "Researchers from the British Antarctic Survey (BAS) have successfully run a series of flights by autonomous unmanned aerial vehicles (UAVs) over Antarctica. These robotic planes have a 2-meter wingspan and weigh 6 kilograms. They are powered by Lithium Ion Polymer (LIPo) battery packs — similar to the ones in your cellphones or laptops. So far, these autonomous UAVs have completed about 20 flights lasting 40 minutes each. These robots can fly over 45 kilometers while taking about 100 measurements per second about the exchange of heat between the lower atmosphere and sea ice. According to one of the scientists, 'the future of atmospheric research will be robotic.'"
Technology

Silent Microchip 'Fan' Has No Moving Parts 136

Stony Stevenson writes "Researchers in the US have developed a microchip fan with no moving parts that operates silently and generates enough wind to cool a laptop computer. The solid-state fan, developed with support from the US National Science Foundation (NSF), is touted as the most powerful and energy efficient fan of its size. The device produces three times the flow rate of a typical small mechanical fan and is one-fourth the size. The technology has the power to cool a 25W chip with a device smaller than one cubic-cm and can someday be integrated into silicon to make self-cooling chips, according to the researchers."
Portables

Can REDFLY sell in an EeePC market? 132

palmsolo (aka Matthew Miller) writes "I was lucky enough to get a chance to evaluate an early beta of the REDFLY device and just posted some initial impressions at ZDNet. As a person who commutes on the train 2 hours every day and usually always has a Windows Mobile device in tow, this is actually a perfect device for me; real productivity is possible with text entry and enjoy surfing on a larger display. However, at $500 can this device really compete in the Asus EeePC market or will it die like the Palm Foleo?"

Slashdot Top Deals