Jenny writes "A battery with a lifespan measured in decades is in development at the University of Rochester, as scientists demonstrate a new fabrication method that in its roughest form is already 10 times more efficient than current nuclear batteries -- and has the potential to be nearly 200 times more efficient. Similar to the way solar panels work by catching photons from the sun and turning them into current, the science of betavoltaics uses silicon to capture electrons emitted from a radioactive gas, such as tritium, to form a current. As the electrons strike a special pair of layers called a 'p-n junction,' a current results. I can imagine lots of applications for this new battery including my own laptop."

fenderdb writes "Brad Fitzgerald of LiveJournal fame has written a utility and a quick article on how all hard drives from the consumer level to the highest level 'enterprise' grade SCSI and SATA drives do not obey the fsync() function. Manufacturers are blatantly sacrificing integrity in favor of scoring higher on 'pure speed' performance benchmarking."

A handful of updates, corrections and further thoughts on recent Slashdot stories follow; read on for updates on the Real-ID Act, Hollywood consultant math professor Jonathan Farley, the real first losers (and winners of the U.S. Open's Aibo League) at the 2005 Robo-Cup, and more. Details below.

Martin Ecker writes "Following up on last year's first installment of the "GPU Gems" book series, NVIDIA has recently finished work on the second book in the series titled GPU Gems 2 - Programming Techniques for High-Performance Graphics and General-Purpose Computation, published by Addison-Wesley. Just like the first book, GPU Gems 2 is a collection of articles by various authors from game development companies, academia, and tool developers on advanced techniques for programming graphics processing units (or GPUs for short). It is aimed at intermediate to advanced graphics developers that are familiar with the most common graphics APIs - in particular OpenGL and Direct3D - and high-level shading languages, such as GLSL, HLSL, or Cg. The reader should also be proficient in C++. As with GPU Gems, GPU Gems 2 is not for beginners. For professional graphics and game developers, however, it is an excellent collection of interesting techniques, tips, and tricks." Read on for Ecker's review.

kalki writes "Dodgeball.com, a service that uses mobile phones to help people meet up with friends who are in the same location, said on its website on Wednesday that it has been bought by Web search leader Google Inc. Also available on the official site is a Q&A about the deal." From the article: "As a two-person team, Alex and I have taken dodgeball about a far as we can alone. Since we finished grad school, we've been trying to figure out how to grow dodgeball and make it a better service along the way. We talked to a lot of different angel investors and venture capitalists, but no one really 'got' what we were doing - that is until we met Google."

ABC News is running a story that self-replicating robots are no longer the stuff of science fiction. Scientists at Cornell University have created small robots that can build copies of themselves. Here is a movie demonstrating the self-replication process. And the paper that will be published in Thursdays issue of Nature.

JaredOfEuropa writes "Forget fancy watercooled CPUs or complicated heat pipes. Annoyed with the noise of the forced-air cooling in his computer, this guy simply dumped his entire motherboard in an aquarium filled with mineral oil. (coral cache). No modifications were necessary; he even left the fans running to keep the oil moving about. The only thing not submersed in oil is the hard disk."

RichardX writes "The folks at Real Virtual Car have taken an old car, hooked up a projector to the windscreen, USB on the steering and pedals, connected it all up to a PC and ended up with what may be the single greatest homemade games controller ever." Even a force-feedback steering wheel!

WheelRunner writes "Engadget is running a story about Dell's new 19-inch laptop. Sadly, it's too late for the only lap that could hold it, Marlon Brando's." Maybe if Apple would put a keyboard-containing lid (and a briefcase-style handle) on the 20" iMac, a market for car-battery backpacks would emerge.

m4c north writes "Toshiba has developed a new DVD-ROM: 45GB spread over 3 layers. From the press release (which has a few illustrations) the new discs have the ability "to record twelve hours of high-definition movies on a single disc." They've also added a "dual-layer hybrid ROM disc comprised of a dual-layer HD DVD-ROM side and a dual-layer DVD-ROM side." Japan Today's article adds, "The huge capacity means that a single disk can store a Hollywood movie trilogy." Do I smell yet another Star Wars re-re-release? Toshiba will take the wraps off the new DVDs at the Media-Tech Expo 2005 in Las Vegas. The HD DVD Promotion group offers the press release in PDF."

Provataki writes "OSNews posted a review of the LinuxCertified LC2210D laptop, running the latest Ubuntu. The laptop delivers pretty well and it has modern characteristics for a fair price but it's not without its small configuration issues. It is also another proof that Linux's ACPI sleep support does not work on most laptops out there, even the ones picked for best compatibility with Linux."

geo_2677 writes "The Indian company which came out with the Simputer has now come with a PC which cost roughly INR 10,000; that's just about US $200. The project was backed by the Indian government R&D department Council of Scientific and Industrial Research (CSIR)." Geo2677 points out an article on the low-cost computer at hinduonline.net and another at the Times of India, and writes "The new PC is Linux-based and has office applications, a browser and audio/video capabilities. With a keyboard that can be rolled up, it looks pretty sleek. A U.S. company is already using it in pilot projects, and many more have shown interest. The Indian government hopes that this will push the PC revolution to the masses. It aimed for home users and small businesses/shops. The PC penetration in India is very low, at a measly 13 million, due to the high costs involved."

An anonymous reader writes "The Mac mini is an ideal low-cost, high-performance PowerPC development platform for numerous applications. Learn how to install and configure Linux on the mini. Future articles will add the software required to make it into a stand-alone multimedia appliance."

fishdan writes "As reported over on Sportsdot, the 2005 RoboCup US Open wrapped up today in Atlanta, Georgia. The American entry from the University of Texas fell 2-0 in robot soccer to the powerhouse German squad, the MicroSoft HellHounds. After the match, the German robot dogs were programmed to flex their metal biceps. With the time to devote to development and the financial backing of a company like Microsoft, the German entries are much more polished then their American counterparts at the moment. Last month at the RoboCup German Open, the Germans dominated nearly every category. (Slashdot has covered Robocup in previous years, too.)"

nokiator writes "Most of the headlines about cool new high density memory technology are from DRAM or Flash manufacturers these days. Matrix Semiconductor, a small Silicon Valley start-up, broke the trend today and announced that the world's smallest 1-Gbit memory chip. Matrix's chip is an antifuse-based one-time programmable ROM. The total die area of the 1Gb chip is 31 square millimeters (smaller than the blue/red pills in the Matrix movie). Matrix claims that they can achieve this density through a proprietary 3D circuit technology that combines 150nm and 130nm process geometries. When Matrix moves to 90nm process technology, it should be possible to manufacture a 8Gb memory chip on a reasonable sized (i.e. cheap) die. There are many potential applications of this kind of low cost, very high density ROM technology, mostly in content distribution area. One 8Gb ROM chip would have sufficient storage capacity to store the contents of an entire movie using H.264 encoding."

jkheit writes "I wrote a quick news item over at the Mac Observer that might be of interest. Apple patents a tablet Mac. The new photos confirm that this device is a touch-screen Apple tablet. You can see it here."

frikazoyd writes "Not long after Iwata's discussion on new hardware WiFi connectivity, IGN announces that the Nintendo DS is going to utilize their GameSpy network to connect online gamers, and without any fees." From the article: "The service will be utilized by software developers in several Nintendo DS titles, including Animal Crossing DS which was revealed at the Game Developers Conference in March. Players will have the ability to choose to play with friends or strangers anywhere in the world, as long as both systems have access to a Wi-Fi hotspot. Nintendo will reveal other online-capable Nintendo DS titles in the coming weeks."

HelloGamer writes "The first real Gameboy emulator has just been released for the PSP. It currently only works with the Japanese 1.0 PSP and doesn't have sound support - but it's amazing how quickly these homebrew apps are being developed."

brain1 writes "PhysOrg is reporting that Motorola has developed a 5" flat-screen prototype display that uses carbon nanotubes. The display appears to promise lower costs for a full 40" HDTV screen bringing the price down to $400. The technology uses standard color TV phosphors, has a response time equaling CRTs', all in a package 1/8" thick. The display characteristics meet or exceed CRTs', such as fast response time, wide viewing angle, and wide operation temperature. All these are areas that LCDs are weak in. Is this the breakthrough we needed to finally make HDTV and flat-panel computer displays *really* affordable?"

mijoe asks: "I have been using various HDDs in my boxes with the exception of Western Digitals since I had some problems with them in the past. My recent issue was with a pair of Maxtor Diamondmax Plus 9 120s. I had both drives fail in about a 2 month span. One of them is 14 months old, and is out of warranty. The logic board is bad (I swapped with a good one and recovered my data), but Maxtor was very short with me when I asked where I could buy replacement boards. Since then, I've switched to Seagate drives for the 5 yr warranty and quiet performance. Is there any place I can buy parts? It seems like a huge waste to throw out a 120 gig drive with the mechanical bits in good working order. What can I do when drives break down? Should I just switch to another manufacturer until I suffer a rash of failures again and then move to the next company?"