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The Military

What Debris From North Korea's Rocket Launch Shows 223

Posted by samzenpus
from the picking-over-the-pieces dept.
Lasrick writes "David Wright of the Union of Concerned Scientists and the Bulletin of the Atomic Scientists analyzes the debris from North Korea's December 11th Unha-3 launch. From the article: 'According to press reports, traces on the inner walls of the tank show that the first-stage oxidizer is a form of nitric acid called "red-fuming nitric acid," which is the standard oxidizer used in Scud-type missiles. There had been some speculation that this stage might instead use a more advanced fuel with nitrogen tetroxide (NTO) as the oxidizer. Since the Nodong engines believed to power the first stage are scaled-up Scud engines, the use of RNFA is not a surprise. There have also been claims that the stage uses a more advanced fuel called UDMH, but it appears instead to be the kerosene-based fuel used in Scuds. In his recent RAND study, Markus Schiller noted that a test Iraq performed using UDMH in a Scud engine gave poor performance, and that burning UDMH gives a transparent flame. The North Korean video of the launch instead shows an orange flame characteristic of Scud fuels (Figure 3 is an image from 12:44 into the video). These findings confirm that the stage is still Scud-level technology.'"
Robotics

Krugman: Is the Computer Revolution Coming To a Close? 540

Posted by samzenpus
from the end-of-an-era dept.
ninguna writes "According to Paul Krugman: 'Gordon argues, rightly in my view, that we've really had three industrial revolutions so far, each based on a different cluster of technologies. The analysis in Gordon's paper links periods of slow and rapid growth to the timing of the three industrial revolutions:
IR #1 (steam, railroads) from 1750 to 1830.
IR #2 (electricity, internal combustion engine, running water, indoor toilets, communications, entertainment, chemicals, petroleum) from 1870 to 1900.
IR #3 (computers, the web, mobile phones) from 1960 to present.
What Gordon then does is suggest that IR #3 has already mostly run its course, that all our mobile devices and all that are new and fun but not that fundamental. It's good to have someone questioning the tech euphoria; but I've been looking into technology issues a lot lately, and I'm pretty sure he's wrong, that the IT revolution has only begun to have its impact.' Is Krugman right, will robots put laborers and even the educated out of work?"
China

Acer Rethinks the "Tablet Bubble," Launching $99 Tablet 243

Posted by Unknown Lamer
from the 3-2-1-*pop* dept.
retroworks writes "In August 2011, Acer Chairman JT Wang declared that the consumer affection for tablets had already begun to cool, basically labeling it a fad. What a difference a year (and a half) makes. Acer now plans to introduce a 'category killer' $99 tablet. 'In the past few months, we've made project roadmap changes in response to big changes in the tablet market,' according to a source at the Wall Street Journal. 'The launch of the Nexus 10 has changed the outlook for what makes competitive pricing.' Acer is aiming the new tablet at emerging markets, competing with Chinese 'white box' tablets (already available in Shenzhen at $45 each)."
Intel

Intel Challenges ARM On Power Consumption... And Ties 163

Posted by Unknown Lamer
from the not-too-shabby dept.
GhostX9 writes "Tom's Hardware just published a detailed look at the Intel Atom Z2760 in the Acer Iconia W510 and compared it to the NVIDIA Tegra 3 in the Microsoft Surface. They break it down and demonstrate how the full Windows 8 tablet outperforms the Windows RT machine in power consumption. They break down power consumption to include the role of the CPU, GPU, memory controller and display. Anandtech is also reporting similar findings, but only reports CPU and GPU utilization." Despite repeated claims that x86 is beating ARM here, they look neck and neck. Assuming you can make a meaningful comparison.
AI

How Do You Give a Ticket To a Driverless Car? 337

Posted by Unknown Lamer
from the kitt-got-into-the-bourbon-again dept.
FatLittleMonkey writes "New Scientist asks Bryant Walker Smith, from the Center for Internet and Society at Stanford Law School, whether the law is able to keep up with recent advances in automated vehicles. Even states which have allowed self-driving cars require the vehicles to have a 'driver,' who is nominally in control and who must comply with the same restrictions as any driver such as not being drunk. What's the point of having a robot car if it can't drive you home from the pub while you go to sleep in the back?"
Power

Peel-and-Stick Solar Cells Created At Stanford University 46

Posted by samzenpus
from the put-that-anywhere dept.
cylonlover writes "Traditionally, thin-film solar cells are made with rigid glass substrates, limiting their potential applications. Flexible versions do exist, although they require special production techniques and/or materials. Now, however, scientists from Stanford University have created thin, flexible solar cells that are made from standard materials – and they can applied to just about any surface, like a sticker. The cells have been successfully applied to a variety of both flat and curved surfaces – including glass, plastic and paper – without any loss of efficiency. Not only does the new process allow for solar cells to applied to things like mobile devices, helmets, dashboards or windows, but the stickers are reportedly both lighter and less costly to make than equivalent-sized traditional photovoltaic panels. There's also no waste involved, as the silicon/silicon dioxide wafers can be reused."
Christmas Cheer

Internet Archive Needs Donations, Has Matching Donor 58

Posted by timothy
from the they-do-amazing-stuff dept.
The Internet Archive curates an astounding collection (actually, a collection of collections) of online resources, from historically significant to modern but obscure. Storing, serving and organizing more than 10 petabytes isn't cheap, despite their ongoing efforts to innovate on that front. An anonymous reader writes "An anonymous donor is matching $3 for every $1 given (up to $450,000) until December 31. One petabyte has been paid for so far and the archive is looking at getting three more. 'These massive servers are the backbone of the Archive, and critical to our continued growth. To all of you who've contributed to our fundraising drive, thanks from all of us here at the Internet Archive. '"
Data Storage

Ask Slashdot: Do You Test Your New Hard Drives? 348

Posted by timothy
from the just-bite-the-corner-a-little dept.
An anonymous reader writes "Any Slashdot thread about drive failure is loaded with good advice about EOL — but what about the beginning? Do you normally test your new purchases as thoroughly as you test old, suspect drives? Has your testing followed the proverbial 'bathtub' curve of a lot of early failures, but with those that survive the first month surviving for years? And have you had any return problems with new failed drives, because you re-partitioned it, or 'ran Linux,' or used stress-test apps?"
Businesses

Foxconn Invests $200 Million In GoPro 83

Posted by timothy
from the best-way-to-document-an-avalanche dept.
MojoKid writes "The initial wearable cameras [GoPro founder Nick] Woodman created to capture action shots as they happened used 35mm film, but his company's cameras have evolved into highly durable, HD vid-cams that are sought after by amateurs and extreme sports stars alike. It turns out Foxconn digs what GoPro has designed as well. The giant Taiwanese manufacturer just bought a significant stake in Woodman Labs, making Nick Woodman a billionaire in the processes. Taiwan-headquartered electronics manufacturer Foxconn (also known as Hon Hai Precision Industry Co.), purchased an 8.88% stake in Woodman Labs for $200 million, valuing the San Mateo, Calif. company at $2.25 billion."
Handhelds

Mobile Raspberry Pi Computer: Build Your Own Pi-to-Go 97

Posted by timothy
from the two-slices-of-cherry-and-a-pumpkin dept.
An anonymous reader writes "Everyone has seen Raspberry Pi Computer, the credit card sized mini PC circuit board that costs only $35. Now there is a new Mobile Raspberry Pi called Pi-to-Go, with a mini LCD, 10-hour battery, and 64GB SSD, all packed together in a 3D printed case. See if you are up to the task to build your own."
Image

Arduino and MK802 Robot, Controlled By Phone 31

Posted by timothy
from the rubber-band-and-russian-accent dept.
beefsack writes "An engineer by the name of Andrej Skraba has combined an Arduino board and an MK802 mini PC running Ubuntu to create a robot which is controllable via its own node.js server and a mobile phone. Seen by some as products competing in a similar space, Andrej shows how the two devices can make the most of their unique features to complement each other, working together."
AMD

First Radeon HD 8000M GPU Benchmarked 68

Posted by timothy
from the some-good-some-bad dept.
J. Dzhugashvili writes "As Slashdot noted earlier this week, AMD has a new line of mid-range Radeon GPUs aimed at notebooks. The chips are based on the Graphics Core Next microarchitecture, and they're slated to show up in systems early next year. While the initial report was limited to specification details, the first review of the Radeon HD 8790M is now out, complete with benchmark data from the latest games. The 8790M is about 35% smaller than its 7690M predecessor but offers substantially better gaming performance across the board. Impressively, the new chip has similar power draw as the outgoing model under load, and its idle power consumption is slightly lower. Notebook makers should have no problems making the switch. However, it is worth noting that this new mobile GPU exhibits some of the same frame latency spikes observed on desktop Radeons, including in games that AMD itself has sponsored."
Power

Mini-Tornadoes For Generating Electricity 135

Posted by Soulskill
from the mad-scientist's-green-revolution dept.
cylonlover writes "Tornadoes generally evoke the destructive force of nature at its most awesome. However, what if all that power could be harnessed to produce cheaper and more efficient electricity? This is just what Canadian engineer Louis Michaud proposes to achieve, with an invention dubbed the 'Atmospheric Vortex Engine' (or AVE). It works by introducing warm air into a circular station, whereupon the difference in temperature between this heated air and the atmosphere above creates a vortex – or controlled tornado, which in turn drives multiple wind turbines in order to create electricity. The vortex could be shut down by simply turning off the source of warm air. Michaud's company, AVEtec Energy Corporation, reports that the system produces no carbon emissions, nor requires energy storage to function, and that further to this, the cost of energy generated could potentially be as low as US$0.03 per kilowatt hour."
Power

Training Under Way For New Nuclear Plant Operators In S. Carolina 74

Posted by timothy
from the we-figure-cut-the-red-fire-first dept.
"Start thinking about getting your tinfoil hat radiation hardened," writes an anonymous reader, and excerpts thus from ABC News: "Southern Co. in Georgia and SCANA Corp. in South Carolina are the first to prepare new workers to run a recently approved reactor design never before built in the United States. Training like it will be repeated over the decades-long lifetime of those plants and at other new ones that may share the technology in years to come. Both power companies are building pairs of Westinghouse Electric Corp. AP1000 reactors at Plant Vogtle near Augusta and SCANA Corp.'s Summer Nuclear Station northwest of Columbia, S.C. While the nuclear industry had earlier proposed a larger building campaign, low natural gas prices coupled with uncertainty after last year's disaster at a Japanese nuclear plant have scaled back those ambitions." Getting a new nuclear plant approved is a long haul.

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