mohrt writes "The Wi-Fi detection ring was developed to give mobile computer users the ability to detect 802.11b/g signals, while providing a unique, fashionable and ultra-portable product package. The prototype circuit collects and rectifies an RF signal in the 2.4GHz range, whereafter an Atmel Tiny microprocessor, detecting the presence of a DC voltage, thusly engages a flashing LED. For those of you who have no excuse to wear a ring, well here it is."

mirko writes "So, you wanted a 1,42GHz Mac mini but either because of some distribution woes or because of your tight budget you could just get a 1,25GHz ? Don't worry : Leo Bodnar just found out how to overclock your machine. Of course, you'll have to open it prior to anything else but you already know how to do this."

A reader writes "Reports ZDNet on how PDA sales have slipped for a third year in a row now at a five-year low." Anyone have numbers for sales of cell phones? My cell phone has almost every piece of functionality I got from my PDA 3 years ago. Plus a crappy camera. Still no dice roller.

redcone writes "The Guardian unlimited is reporting that Korean roboticist Kim Jong-Hwan, who founded the robot football (soccer) World Cup, and is the director of the ITRC-Intelligent Robot Research Centre, has developed a series of artificial chromosomes that, he says, will allow robots to feel lusty, and could eventually lead to them reproducing."

nberardi writes "The PPC team has prototyped the first completely graphical LiveCD for the PowerPC platform featuring a 3D multiplayer OpenGL/SDL game called Cube. Designed for the PegasosPPC, a CD variant to run on Macintosh hardware is already in the works. While the 198 MB GameCD is already available for download from the mirrors (in the experimental/ppc/livecd directory), a whole cluster of ODWs running Cube will be part of the presentations in the Gentoo developer room at FOSDEM in Brussels, 26-27 February 2005." Finding this ISO is a bit of a chore; first, go to one of the download mirrors, then follow the experimental/ppc/livecd chain. However, note that until the Macintosh version is ready, only people with Pegasos hardware will benefit.

Larry Groebe writes "The most amazing unified collection of books, papers, and similar material on the history of computing is about to go on sale at Christie's auction house. Want a signed copy of 'Rossum's Universal Robots?' Original papers on the Eniac? Alan Turning's original proof of universal computability? Letters from Charles Babbage himself? It's in there, to anyone with (a whole lot of) money. Check out the estimated price on the 1974 journal article by Vinton Cerf describing IP addressing. It's increased in value in the past 30 years...just a bit."

Quantrell writes "Ars Technica has done a very thorough review of the AM/FM radio time-shifting device radioSHARK. I was surprised when I read it, because I thought it was Mac-only. Actually the device has good Windows support, and their review shows that some of the problems experienced by early adopters have been solved with recent updates to the product. That said, there are actually some considerable flaws with the product, so buyer beware." There's a lot more meat on this review than this story which was a lot more glowing of a review.

Dustin writes "A lot of people modify computer cases, often requiring them to cut intricate custom designs in sheet metal. For most, there is the Dremel tool. But sometimes, that just isn't good enough. Possibly due to an insanely complex design, or unsteady hands, a Dremel just might not cut it (pun honestly wasn't intended). JimBob, a member at OverhauledPC.com, has a much better way. Using readily available salt water and electricity, his technique is much easier than trying to cut patterns with a rotary tool."

Sammy at Palm Addict writes "According to the BBC, Regular Blackberry use 'could damage thumbs', experts warn. Trendy handheld Blackberry devices could cause damage to users' thumbs, doctors are warning. Sales of the £200 gadget, which can be used to email, page and phone, have boomed in recent years with celebrities such as David Beckham using them. But US and UK doctors said repetitive use could cause arthritis or harm tendons in the thumb. Research in Motion, which manufactures the Blackberry, said it would not comment on the claims."

Leave Blank asks: "Are there any laptops out there anymore that -don't- have trackpads? I can't use them properly at all (for whatever reason - my current theory is that it's linked to my severe Raynaud's - some days I can activate a trackpad from a bit under a centimetre above it, other days it just doesn't work at all, so I always carry around an external trackball with my current laptop. Does anyone on Slashdot have recommendations I mightn't have managed to google?"

Tablespork writes "Apple this morning has updated the PowerBook G4. The new models feature 1.5 or 1.67 ghz processors, 8x superdrives, 512MB memory standard, Bluetooth 2.0, updated graphics cards, a sudden motion sensor, as well as a scrolling trackpad. Looks like we'll have to wait a little longer for the PowerBook G5."

skreuzer writes "MIT Media Lab founder Nicholas Negroponte has a plan to build a $100 PC for the developing world, which is supposedly going to have a 14-inch color screen and run on Linux, has the backing of AMD, Google, Motorola, Samsung, and News Corp. Apparently they're all getting mixed up in a joint-venture to produce the PC, which will be sold directly to governments only."

DiZASTiX writes "Kevin Rose, the ever so popular host of G4/TechTV's The Screen Savers, has managed to fit a PC inside the Mac mini. 'I've seen a ton of articles around the web lately comparing the Mac mini to the near full size desktop PC. What they fail to compare is the amount of computing power per square inch you get with the Mini. So, I decided to take it upon myself to create the fastest PC possible with the size constraints of the Mini's small form factor.' The article covers most everything he did and includes pictures."

_pruegel_ asks: "Most people will (if at all) use UML for documentation of software projects. Others come up with non-IT uses like writing poems. Now, I came up with some sort of collaboration diagram for The O.C. (as of episode 2.09). What funny or not so funny but non-IT uses for UML have you found?"

Verteiron writes "Despite all the (mostly incompatible) flash memory/card formats out there already, a consortium made up of several Taiwan-based manufacturers are preparing to unveil a new one at the upcoming CeBIT. The memory itself, called M-Flash, will form the backbone of the new M-Card format. According to C-One, a member of the M-Card group and the maker of Pretec brand flash devices, the M-Flash memory architecture is cheap to manufacture and allows for devices 2/3 the size of existing MMC products. The M-Card format uses the USB 2.0 I/O specification, but C-One claims it will transfer data at twice the speed of USB 2.0 while using about a third the power required by current devices. To encourage adoption of the new card format, it has been designed to be compatible with the existing SD/MMC format at reduced speeds. C-One also plans to make the currently proprietary format an open standard. Palm Blvd. and the EE Times (free reg. required) have articles with a few more details."

Roland Piquepaille writes "A professor in computer science at the Utah State University (USU) is building robots to help people with disabilities, according to the Utah Statesman in this article. The story, which is more focused on the professor than robotics, carries several anecdotes, such as an embarrassing voice recognition system. After a blind man cleared his throat, the robot misinterpreted the sound as a sign that the man wanted to go to the bathroom. Later, every time a man cleared his throat before speaking, the robot changed directions and insisted to guide him to the restrooms. Even if the article is entertaining, this project at USU is far more ambitious. In fact, they want to design RFID-enabled robots mounted on mobile carts which will welcome blind persons at the entrance of a supermarket and guide them through the store. I bet you'll never find those carts at a Wal-Mart store, but read more for other details, references and pictures about these RFID-equipped robots designed to help blind people."

jugander writes "nilss over at the iPodLinux Project (previously on /.) has performed one of the coolest and most bizzare hacks I've seen in a while. He was able to extract the bootloader from the 4G iPod by sounding out ticks with the iPod's squeaky piezo. With some tweaking and a makeshift recording studio, he was able to dump the 64 kb file at 5 bytes/sec. And yes, this means that 4G iPods can now boot linux!"

An anonymous reader writes "Scientists at the University of Zurich predict that our galaxy is filled with a quadrillion clouds of dark matter with the mass of the Earth and size of the solar system. The results in this weeks journal Nature, also covered in Astronomy magazine, were made using a six month calculation on hundreds of processors of a self-built supercomputer, the zBox. This novel machine is a high density cube of processors cooled by a central airflow system. I like the initial back of an envelope design. Apparently, one of these ghostly dark matter haloes passes through the solar system every few thousand years leaving a trail of high energy gamma ray photons."

Hack Jandy writes "AnandTech reports that Intel's Smithfield processors are going to get here sooner than they originally predicted; most likely within the next few months. Apparently, the Intel roadmaps reveal that the launch dates for next generation desktop chipsets, 2MB L2 Prescotts and Dual Core Smithfield processors (operating at 3.2GHz per core) are almost upon us - way ahead of the original Q4'05 roadmap estimates. Hopefully, that means Intel will actually start shipping the new technology instead of waiting four months after the announcement for retail products."

CaptainKaos[DOH!] writes "Robot hacker Trevor Blackwell is at it again, this time with a self-balancing Eunicycle. Blackwell writes, 'Some time ago I built a self-balancing two-wheeled scooter. Since then I realized that two wheels are redundant, and only a single wheel is needed to make a ridable vehicle. A vehicle with a single wheel is much smaller and lighter. It weighs under 30 lbs and is easily carried with one hand when going up stairs or on public transportation.' Trevor's previous 'Segway' type two-wheeler was mentioned on Slashdot."