Nerval's Lobster writes "NoSQL databases sometimes feature a concept called document storage, a way of storing data that differs in radical ways from the means available to traditional relational SQL databases. But what does 'document storage' actually mean, and what are its implications for developers and other IT pros? This SlashBI article focuses on MongoDB; the techniques utilized here are similar in other document-based databases."

angry tapir writes "ARM chips made with an advanced, 20-nanometer manufacturing process could appear in smartphones and tablets by as soon as the end of next year, the head of ARM's processor division said Monday. The more advanced chips should allow device makers to improve the performance of their products without reducing battery life, or offer the same performance with longer battery life."

chrb writes "Nintendo has announced that its new Wii U console will feature a social network called the Miiverse in which users can video chat, see what others are playing, share game content and swap tips." And with a nod to Zawinski's Law, "The redesigned Wii U GamePad features dual sticks, a touch screen that supports finger and stylus interaction, motion and gyroscope sensors, and the ability to act as a TV remote. The Wii U GamePad has its own dedicated Web browser and can share images and video to a TV so that everyone can enjoy the shared content."

An anonymous reader writes "The Raspberry Pi received an extraordinary amount of pre-launch coverage. It truly went viral with major news corporations such as the BBC giving extensive coverage. Not without reason, it is groundbreaking to have a small, capable computer retailing at less than the price of a new console game. There have been a number of ventures that have tried to produce a cheap computer such as a laptop and a tablet but which never materialised at these price points. Nothing comes close to the Raspberry Pi in terms of affordability, which is even more important in the current economic climate. Producing a PC capable of running Linux, Quake III-quality games, and 1080p video is worthy of praise." Beyond praise, though, this article details the hooking-up and mucking-about phases, and offers some ideas of what it's useful for.

An anonymous reader writes "Here's a scenario: you are on a vacation trip for a couple of weeks — on the road. Lots of pictures — 2-300 per day. Maybe some text files with short notes etc. You have a camera with Eye-Fi, a PC, and a phone with WiFi and 3G. Files ends up on the PC (mobile storage), phone provides Internet connectivity. Now, if you wanted to upload all files pretty much as you go — given spotty access to Internet over G3 and WiFi — what would be the best way to do that automatically; set-it-and-forget-it style? I would like them to end up on my own server. rsync script? ownCloud? Some BitTorrent setup? Other? I'm thinking of interrupted file transfers due to no network, re-starts etc. And I would not want to lose any files; including scenarios where files gets deleted locally — that should not result in files getting automatically deleted on the server as well. Sure; I could perhaps use something like Dropbox but that would take the fun out of it."

NicknamesAreStupid writes "Product Design & Development reports another breakthrough in small scale solid oxide fuel cells. This methane-fueled cell achieves about 50% efficiency at around 2kW, enough to power an average home. It does so by efficiently recycling its heat to perpetuate the process. Of course, this is not practical for most homes, which only have natural gas that contains nearly one fifth impurities. However, that could change if gas suppliers refined their product."

aonsquared writes "In a previous Slashdot story, I demonstrated a voice-controlled robotic arm using the open-source speech decoder Julius. This time, I have managed to port the system to a Raspberry Pi to control the same robotic arm, and as usual, posted the tutorial and source code. Some negative reviews of the Raspberry Pi are starting to appear, and they're missing the educational point of this device — I'm hoping this will counter the naysayers, and help inspire a new generation of hackers, as well as also bring open-source speech recognition the same attention as proprietary solutions (i.e Siri) are getting!"

MojoKid writes "Renowned Overclocker HiCookie used a Gigabyte Z77X-UD3H motherboard to achieve a fully validated 7.03GHz clock speed on an Intel Core i7 3770K Ivy Bridge processor. As it stands, that's the highest clockspeed for an Ivy Bridge CPU, and it required a steady dose of liquid nitrogen to get there. HiCookie also broke a record for the highest memory speed on an Ivy Bridge platform, pushing his G.Skill Trident X DDR3-2800 memory kit populated in four DIMM slots to 3,280MHz. Not for the faint of heart, the record breaking CPU overclock required that HiCookie pump 1.956V to the processor, according to his CPU-Z screenshot. The CPU multiplier was set at x63."

ToriaUru writes "Fedora is going to pay Microsoft to let them distribute a PC operating system. Microsoft is about to move from effectively owning the PC hardware platform to literally owning it. Once Windows 8 is released, hardware manufacturers will be forced to ship machines that refuse to run any software that is not explicitly approved by Microsoft — and that includes competing operating systems like Linux. Technically Fedora didn't have to go down this path. But, as this article explains, they are between a rock and a hard place: if they didn't pay Microsoft to let them onto the PC platform, they would have to explain to their potential users how to mess with firmware settings just to install the OS. How long before circumventing the secure boot mechanism is considered a DMCA violation and a felony?" Note that the author says this is likely, but that the entire plan is not yet "set in stone."

First time accepted submitter dintech writes "The Wall Street Journal reports that while Sony considered online-only content distribution for its next-generation Playstation, the manufacturer has decided that the new console will include an optical drive after all. Microsoft is also planning to include an optical disk drive in the successor to its Xbox 360 console as the software company had concerns about access to Internet bandwidth."

miller60 writes "HP Labs is developing a concept for a 'net zero' data center — a facility that combines on-site solar power, fresh air cooling and advanced workload scheduling to operate with no net energy from the utility grid. HP is testing its ideas in a small data center in Palo Alto with a 134kW solar array and four ProLiant servers. The proof-of-concept confronts challenges often seen in solar implementations, including the array's modest capacity and a limited window of generation hours – namely, when the sun shines. HP's approach focuses on boosting server utilization, juggling critical and non-critical loads, and making the most of every hour of solar generation. Can this concept work at scale?"

MojoKid writes "Folks have been clamoring for more on Google's Project Glass and Sergey Brin — one of the co-founders of Google — is now burying himself in the R&D department associated with its development. Recently Brin appeared on 'The Gavin Newsom Show' with the prototype glasses perched on his face. The visit was actually a bit awkward as you can see in the video, as it's a lot of Brin and Newsom describing what they're seeing via the glasses with no visual for the audience. However, Brin dropped a bomb when he stated that he'd like to have the glasses out as early as next year."

cylonlover writes news of ion based logic gates. From the article: "While the silicon chips found in the electronic devices that we rely on every day are built around the flow of electrons through circuits, with the development of an 'integrated chemical chip,' a doctoral student in Organic Electronics at Sweden's Linköping University has created the basis for an entirely new circuit technology based on the transmission of ions and molecules. Like silicon-based chips, the integrated chemical chip contains logic gates, such as NAND gates, that form the basis of digital electronics by allowing for the construction of all logical functions."

angry tapir writes "LG Display has introduced a 5-inch full HD LCD panel for smartphone displays — the highest resolution mobile panel to date. The widescreen panel is based on AH-IPS (Advanced High Performance In-Plane Switching) technology and has a 1920-by-1080 pixel resolution or 440 pixels per inch (ppi), according to LG. That compares well to Apple's Retina display, which has 264 ppi on the new iPad and 326 ppi on the iPhone 4S."

New submitter MBAFK writes "My coworker Geoff and I have been taking power meters home to see what the true cost of PC gaming is. Not just the outlay for hardware and software, but what the day-to-day costs really are. If you assume a 20 hour a week habit, and using $0.11 a KWH, actually playing costs Geoff $30.83 a year. If Geoff turns his PC off when he is not using it, he could save $66 a year."

theodp writes "Covered earlier on Slashdot, but lost in the buzz over the Google driverless car is Project Sartre (Safe Road Trains for the Environment), Europe's experiment with 'vehicle platooning,' which has successfully completed a 125 mile road test on a busy Spain motorway. Three Volvos drove themselves by automatically following a truck in the presence of other, normal road users. The Register reports that on-board cameras, radar and laser tracking allow each vehicle to monitor the one in front, and wirelessly streamed data from the lead vehicle tells each car when to accelerate, break and turn."

angry tapir writes "A Japanese robotics lab has developed a new emergency response prototype that will soon be put to work at the crippled Fukushima Daiichi nuclear plant in northern Japan. The robot, called 'Rosemary,' is about the size of a lawn mower and has four extended treaded feet that swivel up and down to help it climb over obstacles."

jakooistra writes "My sister recently asked me for a laptop recommendation. I said, 'Sure, what are techie brothers for,' and diligently started my search for her perfect laptop. Two days later, I feel like I've aged two years. Every laptop vendor seems to want to sell a dozen different, poorly-differentiated models, with no real way of finding out what is customizable without following each model to its own customization page. And there are so many vendors! How am I, as a consumer, supposed to find what I need? Is there a website, hiding somewhere I just can't find, that tracks all the multivariate versions and upgrade choices in an easily searchable database?"

An anonymous reader sends this quote from a Reuters report: "German solar power plants produced a world record 22 gigawatts of electricity per hour — equal to 20 nuclear power stations at full capacity — through the midday hours on Friday and Saturday, the head of a renewable energy think tank said. The German government decided to abandon nuclear power after the Fukushima nuclear disaster last year, closing eight plants immediately and shutting down the remaining nine by 2022. ... The record-breaking amount of solar power shows one of the world's leading industrial nations was able to meet a third of its electricity needs on a work day, Friday, and nearly half on Saturday when factories and offices were closed."

Barence writes "Is it even possible to buy technology with a clean conscience? With the vast majority of gadgets and components manufactured using low-paid labor in Asia, manufacturers unable to accurately plot their supply chains, and very few ethical codes of conduct, the article highlights the difficulty of trying to buy ethically-sound gadgets. It concludes, 'The answer would appear to be no. Too little information is available, and nobody we spoke to believed an entirely ethical technology company exists – at least, not among the household names.'"