alphadogg writes "It's possible that in the future conversations on your cell phone could generate enough electrical power to run the phone, without batteries. That's one possible outcome of recent work by a team of Texas researchers, who appear to have discovered that by building a certain type of piezoelectric material to a specific thickness (about 21 nanometers, compared to a typical human hair of 100,000 nanometers), you can boost its energy production by 100 percent. And the technology could power not just phones, but a whole range of low-power mobile devices and sensors. The breakthrough is an example of 'energy harvesting' that can convert one kind of energy, such as vibrations or solar rays, into electricity."

Buckbeak writes "I like to carry my Linux systems around with me, on USB flash drives. Typically, SanDisk Cruzers or Kingston HyperX. I encrypt the root partition and boot off the USB stick. Sometimes, the performance leaves something to be desired. I want to be able to do an 'apt-get upgrade' or 'yum update' while surfing but the experience is sometimes painful. What can I do to maximize the performance of Linux while running off of a slow medium? I've turned on 'noatime' in the mount options and I don't use a swap partition. Is there any way to minimize drive I/O or batch it up more? Is there any easy way to run in memory and write everything out when I shut down? I've tried both EXT2 and EXT3 and it doesn't seem to make much difference. Any other suggestions?"

Barence writes "Mobile broadband speeds could hit a blistering 42Mb/sec as early as next year, according to Ericsson's chief technology officer. The idea seems far-fetched given that even the fastest dongles currently hover at around 7.2Mb/sec, but the technology to smash that barrier is thought to be just around the corner. One of the methods is very similar to the MIMO technology already used in draft-N wireless routers, but Ericsson believes a combination of factors may even squeeze that figure to 80Mb/sec in the longer term."

An anonymous reader writes "For copyright activists, Christmas comes but once every three years: a chance to ask Santa for a new exemption to the much-hated Digital Millennium Copyright Act's prohibitions against hacking, reverse engineering and evasion of Digital Rights Management (DRM) schemes protecting all kinds of digital works and electronic items. Judging from the list of 20 exemptions requested this year [19 shown], some in the cyber-law community are thinking big. The requests include the right to legally jailbreak iPhones in order to use third party software, university professors wishing to rip clips from DVDs for classroom use, YouTube users wishing to rip DVDs to make video mashups, a request to allow users to hack DRM protecting content from stores that have gone bankrupt or shut down, and a request to allow security researchers to reverse engineer video games with security flaws that put end-users at risk." Reader MistaE provides some more specific links to PDF versions: "Among the exemption proposals is a request from the Harvard Cyberlaw Clinic to allow circumvention of DRM protection when the central authorization server goes down, a request from the EFF to allow circumvention to install third party programs on phones, as well as a request for ripping DVDs for non-commercial purposes. There were also several narrow requests from educational institutions to rip DVDs for classroom practices."

Ashmash writes "Phoronix has put out a fresh series of benchmarks that show the real world performance of the Ext4 file-system. They ran 19 tests on Fedora 10 with changing out their primary partition to test Ext3, Ext4, Xfs, and ReiserFS. The Linux 2.6.27 kernel was used with the latest file-system support. In the disk benchmarks like Bonnie++ Ext4 was a clear winner but with the real world tests the results were much tighter and Xfs also possessed many wins. They conclude though that Ext4 is a nice upgrade over Ext3 due to the new features and just not improved performance in a few areas, but its lifespan may be short with btrfs coming soon."

Smivs writes "Logitech has hailed as a major landmark the production of their one billionth computer mouse. The news comes at a time when analysts claim the days of the mouse are numbered. 'It's rare in human history that a billionth of anything has been shipped by one company,' said Logitech's general manager Rory Dooley. 'Look at any other industry and it has never happened. This is a significant milestone.' The computer mouse will achieve a milestone of its own next week when it turns 40. It was 9 December 1968 when Douglas C. Engelbart and his group of researchers at Stanford University put the first mouse through its paces."

Dorian Cox, the 27-year-old guitarist of the indie band The Long Blondes, thought his guitar playing days were over after he suffered a stroke. He now has a glimmer of hope thanks to some neurological physiotherapy which includes a cutting-edge piece of medical technology. The SaeboFlex helps patients by supporting their wrists and helping them grasp and release objects. "It's a fantastic service, it's helping tremendously and I think it can work wonders for me and others — it's almost like a gym for my hand. I know things might never be the same again and nobody can give me a definite answer about whether I'll play guitar again but I'm getting back on track with their help," Mr. Cox said. This thing looks really cool, and I'm sure many people will benefit from it, though I can't help but wonder if they make a model that lets you shoot your fist at an enemy.

stinkymountain writes "Writer John Brandon spent two days at Microsoft Research Labs in Redmond and got an inside look at some pretty interesting projects under development, including a robotic receptionist, a new type of touch screen for people with fat fingers, and an electronic table that allows multiple people to collaborate in real time. Brandon also talks about some of these research projects on this NPR podcast."

An anonymous reader writes "Now that Intel has unleashed its next-generation Core i7 processors, all eyes are turned to AMD and its incoming wave of 45nm CPUs. To get a feel for AMD's future competitiveness, The Tech Report has taken a pair of 2.7GHz 45nm Opterons (with 75W power envelopes) and put them through the paces against Intel Xeons and older, 65nm Opterons in an extensive suite of performance and power efficiency tests — from Cinema 4D and SPECjbb to computational fluid dynamics and a custom XML handling benchmark. The verdict: AMD's new 45nm quad-core design is a notable improvement over the 65nm iteration, and it proves to be a remarkably power-efficient competitor to Intel's Xeons. However, 45nm AMD chips likely don't have what it takes to best Intel's Core i7 and future Nehalem-based Xeons."

Dave Bullock (eecue) writes "Scientists at UCLA have accidentally created a material that will some day give us better, faster, cheaper, more flexible digital cameras. I toured their lab and shot a photo essay for Wired. Personally I'm looking forward to a quantum-dot embedded camera sensor someday soon. 'Graduate student Hsiang-Yu Chen was working on a new formula for solar cells when something went wrong. Instead of creating electricity when hit with light, the conductivity of the material she was working with changed. "The original purpose [was] to make a solar cell more efficient," says Chen. "However, during the research we found the solar cell phenomenon [had] disappeared." Instead, the test material showed high gain photoconductivity, indicating potential use as a photo sensor.'"

jbolden writes "According to the Wall Street Journal, the FCC is considering a plan to provide free wireless internet. The plan would involve some level of filtering, but might allow adults to opt out. CTIA has argued that this business model has traditionally failed (see Slate magazine's analysis as to why)."

chrb writes "With the recent discussion here on proprietary blobs in the Linux kernel, it's nice to see that today Sam Leffler has released the source for the Atheros Hardware Abstraction Layer under the ISC license, which is both GPL and BSD compatible. The Atheros chipset is used in many laptops, so this is another important step towards running a completely free distribution."

kev009 writes to recommend his editorial overview of the past, present and future of Linux file systems: ext2, ext3, ReiserFS, XFS, JFS, Reiser4, ext4, Btrfs, and Tux3. "In hindsight it seems somewhat tragic that JFS or even XFS didn't gain the traction that ext3 did to pull us through the 'classic' era, but ext3 has proven very reliable and has received consistent care and feeding to keep it performing decently. ... With ext4 coming out in kernel 2.6.28, we should have a nice holdover until Btrfs or Tux3 begin to stabilize. The Btrfs developers have been working on a development sprint and it is likely that the code will be merged into Linus's kernel within the next cycle or two."

ptorrone writes "MAKE Magazine has put together their 3rd annual 'State of Open Source Hardware 2008' — in just a few years, the number of projects has grown from a small handful to an amazing 60+ offerings. Similar to open source software, open source hardware is available with source code, schematics, firmware and bills of materials, and allows commercial use. The most popular project, Arduino, the open source prototyping platform for artists and engineers, has shipped over 60,000 units." The article is formatted such that the first link for a particular device will usually take you to the project home page. Some will bring you instead to where you can purchase the items, but most still have a "How To" tab which will direct you to guides and instructions on how to build your own gadgets. There are a bunch of interesting devices, from the Game of Life on the outside of a cube to a home-made MP3 player to OpenMoko.

mhm was one of many readers to note that the Linux 2.6 kernel has been ported to the iPhone. "Planetbeing, one of the iPhone devteam members, has been working on porting Linux to the iPhone (along with a custom bootloader called OpeniBoot). Today they managed to boot the kernel! Video showing the boot process has been posted. Instructions and binaries are available on the project blog."

NewScientist has a story about the "hydrogen economy" that has been resting on the horizon for a decade or more. Despite a great deal of enthusiasm for and research into hydrogen-based power systems, the technology seems just as far away from everyday use as it's always been. A British startup, ITM Power, has recently claimed a breakthrough in lowering production costs by using a nickel catalyst (rather than platinum) with a membrane small enough for home use. But, even if their method is proven and adopted, it still wouldn't address huge energy efficiency problems in the process. "The point was made forcefully by Gary Kendall of the conservation group WWF in a recent report called Plugged In (PDF, pgs. 135-149). Kendall, a chemist who previously spent almost a decade working for ExxonMobil, highlights how the energy losses in the fuel chain - from electrolysis to compression of the hydrogen for use to inefficiencies in the fuel cell itself — mean that only 24 per cent of the energy used to make the fuel does any useful work on the road."

Slatterz writes "The IT backbone for the London 2012 Olympic and Paralympic Games is to be cut. According to the Games' chief integrator, Michele Hyron of Atos Origin, each section of the computing infrastructure will be made more efficient in order to minimise redundant equipment and hopefully reduce energy consumption. Unlike the Beijing Games, the results will be relayed via the public wireless network which will be available in the Olympic Park — this means cutting out the 2,500 results terminals. The team of workers will deliver more than 1,000 servers, 10,000 PCs and 4,000 printers."

Lucas123 writes "Micron demonstrated the culmination of numerous technology announcements this year with a solid state disk drive that is capable of 1GB/sec throughput with a PCIe slot. The SSD is based on Micron's 34nm technology and interleaving 64 NAND flash chips in parallel. While the techology, which is expected to ship over the next year, is currently aimed at high-end applications, a Micron executive said it's entirely possible that Micron's laptop and desktop SSDs could have similar performance in the near future by bypassing SATA interfaces."

jameswing writes "I am thinking of buying a UMPC, such as an Eee PC or a Wind for my son, and wanted to get input from Slashdot. He is almost 2 and really curious about our computers, and anything electronic. I want to foster this in him, without having him on my desktop or laptop. I also don't really like the idea of getting one of those cheap 'Learning Laptops' that have a tiny screen and are really limited. Does anybody have one that they use with their children? How sturdy is it? Will it stand up to a 2-year-old? If not, what are good alternatives? What are your thoughts? Suggestions?"

Barence writes "Fujitsu Siemens is offering its customers free laptop upgrades for life with its Lifebook4Life scheme. Customers buying a Fujitsu Siemens Lifebook will be offered a free upgrade three years after their original purchase, and every subsequent three years for the rest of their life — as long as they purchase an extended three-year warranty. Customers will have to hope inflation stays low, though: the value of each new notebook cannot exceed the value of the previous one, adjusted 10% for inflation. Fujitsu says the scheme is profitable, and a raft of small print ensures plenty of people will find they've excluded themselves from the scheme for all sorts of reasons."