Power

Why Is Linux Notebook Battery Life Still Poor? 907

Ganty writes "I recently purchased a Lenovo W500 notebook, and after 'downgrading' to XP and creating a dual partition, I found that I had a battery life of nearly three hours using the long-life battery, at this point I was a happy camper because it means that I can watch a DVD during a flight. I then tried various Linux distributions and found the battery life under FOS to be very disappointing, with an average of 45 minutes before a warning message. After settling on Ubuntu I then spent three days trying various hardware tweaks but I only managed to increase the battery life to one and a half hours. Unwanted services have been disabled, laptop mode has been enabled, the dual core CPU reduces speed when idle and the hard drive spins down when not needed. Obviously Apple with their X86 hardware and BSD based OS have got it right because the MacBooks last for hours, and a stock install of MS Windows XP gives me three hours of life. Why is battery life on notebooks so poor when using Linux? Some have suggested disabling various hardware items such as bluetooth and running the screen at half brightness but XP doesn't require me to do this and still gives a reasonable battery life."
Data Storage

Thanks For the ... Eight-Track, Uncle Alex 633

Uncle Alex writes "My niece just turned one year old and her parents have asked that, instead of the usual gifts, we each contribute something to a time capsule to be opened on her 17th birthday. Multiple members of my family want to contribute digital data — text, video, music files. They came to me (the closest thing to a geek our family has) wondering: what's the best way to save the data to ensure she'll actually be able to see it in 16 years? Software might be out of date, hardware may no longer be used... any suggestions?"
Hardware Hacking

Open Source Russian Vacuum Fluorescent Tube Clock 155

ptorrone writes "Hacker extraordinaire Ladyada (whose open source hardware projects we have discussed before) has just published a complete how-to, with design document, on making your own open source Russian vacuum fluorescent clock. The vacuum fluorescent tubes aren't as dangerous as (high-voltage) Nixie tubes, and there seem to be more of them available in the world. If you're not interested in building a clock from scratch, you can also pick up a kit version. All the schematics, source code, and files are available on the project's page."
Robotics

High-Speed Robot Hand Shows Dexterity and Speed 133

An anonymous reader tips a blog posting that begins "A few blogs are passing around videos of the Ishikawa Komuro Lab's high-speed robot hand performing impressive acts of dexterity and skillful manipulation. However, the video being passed around is slight on details. Meanwhile, their video presentation at ICRA 2009 (which took place in May in Kobe, Japan) has an informative narration and demonstrates additional capabilities. ... [It] shows the manipulator dribbling a ping-pong ball, spinning a pen, throwing a ball, tying knots, grasping a grain of rice with tweezers, and tossing / re-grasping a cellphone!"
Earth

"Gigantic Jets" Blast Electricity Into the Ionosphere 168

New Scientist has an update on the so-called "gigantic jets" first discovered in 2003 — these are lightning bolts that reach from cloud tops upward into the ionosphere, as high as 90 kilometers. (There's a video at the link.) What's new is that researchers from Duke University have managed to measure the electrical discharge from a gigantic jet and confirm that they carry as much energy skyward as ordinary lightning strikes carry to the ground. According to the article, "Gigantic jets are one of a host of new atmospheric phenomena discovered in recent years. Other examples are sprites and blue jets."
Input Devices

BrainPort Lets the Blind "See" With Their Tongues 131

Hugh Pickens writes "Scientific American reports that a new device called 'BrainPort' aims to restore the experience of vision for the blind and visually impaired by relying on the nerves on the tongue's surface to send light signals to the brain. BrainPort collects visual data through a small digital video camera and converts the signal into electrical pulses sent to the tongue via a 'lollipop' that sits directly on the tongue, where densely packed nerves receive the incoming electrical signals. White pixels yield a strong electrical pulse and the electrodes spatially correlate with the pixels, so that if the camera detects light fixtures in the middle of a dark hallway, electrical stimulations will occur along the center of the tongue. Within 15 minutes of using the device, blind people can begin interpreting spatial information. 'At first, I was amazed at what the device could do,' says research director William Seiple. 'One guy started to cry when he saw his first letter.'" There is some indication that the signals from the tongue are processed by the visual cortex. The company developing the BrainPort will submit it to the FDA for approval later this month, and it could be on sale (for around $10,000) by the end of the year.
Input Devices

New Logitech Dark Field Mice Operate On Glass 225

Slatterz writes "Logitech has introduced new mice that use two lasers rather than one to work on a variety of previously unusable surfaces. The first laser picks out imperfections in the surface of a tabletop while the second laser focuses on microscopic imperfections highlighted and uses those to direct the cursor. The technique, dubbed dark field microscopy, allows mice to be used on almost any surface, including glass (as long as it is more than 4mm thick)."
Security

Ten Ways To Destroy a Hard Disk 289

Barence writes "Following his blog last week about the homemade hard disk destroyer, Bustadrive, Mike Jennings was deluged with comments from readers, both on the blog and here on Slashdot. Most seemed to like the product, but also offered up far more innovative and madcap methods of hard disk destruction, with a wide range of implements used — household and otherwise. In this follow-up post, he rounds up the best of an imaginative bunch of hard disk destruction methods."
Data Storage

Why Size Matters For Your SSD Purchase 175

Vigile writes "Performance analysis on solid state drives is still coming into clarity as more manufacturers enter the fold and more of the drives find their way into users' hands. While Intel's dominance in the SSD market was once undoubted, newer garbage collection methods from Indilinx and Samsung are now balancing performance across the the major players. What hasn't been discussed in great detail yet is the effect that drive capacity can have on overall performance. Some smaller drives (64GB versus 128GB) will actually use fewer data channels from the controller chip and thus will have lower transfer speeds. The article compares drives using controllers from Indilinx, Samsung and Intel." Note that PCPer greedily spans this review over 12 pages. Next time maybe they can keep it down to something more reasonable.
The Almighty Buck

Apple Allegedly Sought Non-Poaching Deal With Palm 181

theodp writes "A Bloomberg report that Apple CEO Steve Jobs proposed a possibly illegal truce with Palm against poaching their respective employees is sure to pique the interest of the US Department of Justice, which already is investigating whether Google, Yahoo, Apple, Genentech and other tech companies conspired to keep others from stealing their top talent. 'Your proposal that we agree that neither company will hire the other's employees, regardless of the individual's desires, is not only wrong, it is likely illegal,' former Palm CEO Ed Colligan reportedly told Jobs in August 2007." The article notes that Apple was probably reacting to Palm's hiring of Jon Rubenstein, who had been instrumental in developing the iPod and went on to spearhead the Pre for Palm (and has now become Palm's chairman and CEO). "It's the story about the importance of charismatic engineers," said veteran Silicon Valley forecaster Paul Saffo. "People don't work for Palm. They work for Jon Rubinstein. One has to wonder how Steve Jobs ever let Jon Rubinstein leave."
Robotics

Taiwan University Students Build Tour-Guide Robot 35

BobB-nw writes "A group of engineering students and their professor at National Taiwan University have built a robot that can map out the area it's operating in and offer guided tours. The robot, named 'Hsiao Mei,' uses laser mapping and GPS technology to navigate on its own, including around corners and obstacles such as tables and chairs. In the first public demonstration on Thursday, an engineering student with a wireless remote control first took the robot through the floor of a small museum on the university's campus so it could create a map for itself. After the initial run-through, the robot was able to make an unaided journey around the floor."
Robotics

Robots Make the Coins Go 'Round, Down Under 126

inkslinger77 writes "Computerworld has a cool slideshow of a Kuka Titan robot and a bunch of AGVs managing the circulation of coins at the Australian Mint. There's also a lengthier article where the head of the project talks about the main reason robots were employed. One of the reasons being that they radically reduce OH&S risk: 'We are finding that the AGVs are much safer and more reliable. Robots are never affected by having a bad night with the baby and falling asleep at the wheel. They are extremely accurate and they always do the same task in the same way.'"
Input Devices

Windows 7 Igniting Touchscreen PC Market 257

ericatcw writes "Apple Inc. may still be coy about whether it plans to launch a touch-screen tablet computer this year, but Windows PC makers are forging right ahead. In the past three weeks, five leading PC makers have announced or been reported to confirm plans to release touch-screen PCs in time for the multi-touch-enabled Windows 7, reports Computerworld. Many appear to be using technology from New Zealand optical touch vendor, NextWindow, which already supplies HP's market-leading TouchSmart line, and Dell's Studio One. NextWindow's CEO says the company is working with partners on 8-10 products set for launch within two months, in time for Windows 7's October 22nd release."
Communications

Speculating On the Far Future of Cellphones 220

Trio writes "What will cellphones look like in in future? silicon.com explores five future characteristics that could shape tomorrow's phones — from a wearable prototype such as MIT's SixthSense device which projects mobile data into the user's world, to a mobile that mixes the real and the virtual by using holographic telepresence. So far, so futuristic, but one question remains: will there be enough spectrum to support all this wireless communication?"
Displays

A Video Ad, In a Paper Magazine 295

lee1 writes "The first-ever video advertisement will be published in a traditional paper magazine — Entertainment Weekly — in September. The video will be displayed on slim-line screens around the size of a mobile phone display and will have rechargeable batteries. The associated chip can hold up to 40 minutes of video, and uses technology similar to that used in singing greeting cards, playing the movie when the page is turned. The first clips will preview CBS shows and advertise Pepsi, but they will only be distributed in Los Angeles and New York. Imagine the fun hacking possibilities."
Power

US Navy Tries To Turn Seawater Into Jet Fuel 402

Hugh Pickens writes "New Scientist reports that, faced with global warming and potential oil shortages, the US Navy is experimenting with making jet fuel from seawater by processing seawater into unsaturated short-chain hydrocarbons that with further refining could be made into kerosene-based jet fuel. The process involves extracting carbon dioxide dissolved in the water and combining it with hydrogen — obtained by splitting water molecules using electricity — to make a hydrocarbon fuel, a variant of a chemical reaction called the Fischer-Tropsch process, which is used commercially to produce a gasoline-like hydrocarbon fuel from syngas, a mixture of carbon monoxide and hydrogen often derived from coal. The Navy team have been experimenting to find out how to steer the CO2-producing process away from producing unwanted methane by finding a different catalyst than the usual one based on cobalt. 'The idea of using CO2 as a carbon source is appealing,' says Philip Jessop, a chemist at Queen's University adding that to make a jet fuel that is properly 'green,' the energy-intensive electrolysis that produces the hydrogen will need to use a carbon-neutral energy source; and the complex multi-step process will always consume significantly more energy than the fuel it produces could yield. 'It's a lot more complicated than it at first looks.'"
The Military

Marine Corps Wants a Throwable Robot 270

coondoggie writes "The US Marine Corps has a request — build and rapidly deploy more 10lb-or-under robots its personnel can throw into dangerous situations that can quickly gather information without endangering Marines. The throwable robot is part of a family of robots that would range from the 10lb version to one that would act as a central controlling device and weigh close to 300lbs. Marine commanders are demanding ever lighter robots so that troops don't have to offload critical equipment from their rucksacks to accommodate them."
Hardware Hacking

Prototype Motherboard Clusters Self-Coordinating Modules 115

An anonymous reader writes "A group of hardware hackers has created a motherboard prototype that uses separate modules, each of which has its own processor, memory and storage. Each square cell in this design serves as a mini-motherboard and network node; the cells can allocate power and decide to accept or reject incoming transmissions and programs independently. Together, they form a networked cluster with significantly greater power than the individual modules. The design, called the Illuminato X Machina, is vastly different from the separate processor, memory and storage components that govern computers today."

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