Oggi e' 29.01.2015
Sei qui: Home arrow Slashdot
Slashdot
Slashdot
News for nerds, stuff that matters

Slashdot
  • Former NATO Nuclear Bunker Now an 'Airless' Unmanned Data Center
    An anonymous reader writes A German company has converted a 1960s nuclear bunker 100 miles from network hub Frankfurt into a state-of-the-art underground data center with very few operators and very little oxygen. IT Vision Technology (ITVT) CEO Jochen Klipfel says: 'We developed a solution that reduces the oxygen content in the air, so that even matches go outIt took us two years'. ITVT have the European Air Force among its customers, so security is an even higher priority than in the average DC build; the refurbished bunker has walls 11 feet thick and the central complex is buried twenty feet under the earth.

    Read more of this story at Slashdot.










  • Dell 2015 XPS 13: Smallest 13" Notebook With Broadwell-U, QHD+ Display Reviewed
    MojoKid writes Dell's 2015 XPS 13 notebook made a splash out at CES this year with its near bezel-less 13-inch QHD+ (3200X1800) display and Intel's new 5th Gen Core series Broadwell-U processor. At 2.8 pounds, the 2015 XPS 13 isn't the absolute lightest 13-inch ultrabook book out there but it's lighter than a 13-inch MacBook Air and only a few ounces heavier than Lenovo's Core M-powered Yoga 3 Pro. The machine's Z dimensions are thin, at .33" up front to .6" at its back edge. However, its 11.98" width almost defies the laws of physics, squeezing a 13.3" (diagonal) display into an 11.98-inch frame making it what is essentially the smallest 13-inch ultrabook to hit the market yet. Performance-wise, this review shows its benchmarks numbers are strong and Intel's Broadwell-U seems to be an appreciable upgrade versus the previous generation architecture, along with lower power consumption.

    Read more of this story at Slashdot.










  • Canada Upholds Net Neutrality Rules In Wireless TV Case
    An anonymous reader writes Canada's telecom regulator has issued a major new decision with implications for net neutrality, ruling that Bell and Videotron violated the Telecommunications Act by granting their own wireless television services an undue preference by exempting them from data charges. Michael Geist examines the decision, noting that the Commission grounded the decision in net neutrality concerns, stating the Bell and Videotron services "may end up inhibiting the introduction and growth of other mobile TV services accessed over the Internet, which reduces innovation and consumer choice."

    Read more of this story at Slashdot.










  • Proposed Disk Array With 99.999% Availablity For 4 Years, Sans Maintenance
    Thorfinn.au writes with this paper from four researchers (Jehan-François Pâris, Ahmed Amer, Darrell D. E. Long, and Thomas Schwarz, S. J.), with an interesting approach to long-term, fault-tolerant storage: As the prices of magnetic storage continue to decrease, the cost of replacing failed disks becomes increasingly dominated by the cost of the service call itself. We propose to eliminate these calls by building disk arrays that contain enough spare disks to operate without any human intervention during their whole lifetime. To evaluate the feasibility of this approach, we have simulated the behaviour of two-dimensional disk arrays with N parity disks and N(N – 1)/2 data disks under realistic failure and repair assumptions. Our conclusion is that having N(N + 1)/2 spare disks is more than enough to achieve a 99.999 percent probability of not losing data over four years. We observe that the same objectives cannot be reached with RAID level 6 organizations and would require RAID stripes that could tolerate triple disk failures.

    Read more of this story at Slashdot.










  • The Quantum Experiment That Simulates a Time Machine
    KentuckyFC writes One of the extraordinary features of quantum mechanics is that one quantum system can simulate the behaviour of another that might otherwise be difficult to create. That's exactly what a group of physicists in Australia have done in creating a quantum system that simulates a quantum time machine. Back in the early 90s, physicists showed that a quantum particle could enter a region of spacetime that loops back on itself, known as a closed timelike curve, without creating grandfather-type paradoxes in which time travellers kill their grandfathers thereby ensuring they could never have existed to travel back in time in the first place. Nobody has ever built a quantum closed time-like curve but now they don't have to. The Australian team have simulated its behaviour by allowing two entangled photons to interfere with each other in a way that recreates the behaviour of a single photon interacting with an older version of itself. The results are in perfect agreement with predictions from the 1990s--there are no grandfather-type paradoxes. Interestingly, the results are entirely compatible with relativity, suggesting that this type of experiment might be an interesting way of reconciling it with quantum mechanics.

    Read more of this story at Slashdot.










  • Georgia Institute of Technology Researchers Bridge the Airgap
    An anonymous reader writes Hacked has a piece about Georgia Institute of Technology researchers keylogging from a distance using the electromagnetic radiation of CPUs. They can reportedly do this from up to 6 meters away. In this video, using two Ubuntu laptops, they demonstrate that keystrokes are easily interpreted with the software they have developed. In their white paper they talk about the need for more research in this area so that hardware and software manufacturers will be able to develop more secure devices. For now, Farraday cages don't seem as crazy as they used to, or do they?

    Read more of this story at Slashdot.










  • Why ATM Bombs May Be Coming Soon To the United States
    HughPickens.com writes Nick Summers has an interesting article at Bloomberg about the epidemic of 90 ATM bombings that has hit Britain since 2013. ATM machines are vulnerable because the strongbox inside an ATM has two essential holes: a small slot in front that spits out bills to customers and a big door in back through which employees load reams of cash in large cassettes. "Criminals have learned to see this simple enclosure as a physics problem," writes Summers. "Gas is pumped in, and when it's detonated, the weakest part—the large hinged door—is forced open. After an ATM blast, thieves force their way into the bank itself, where the now gaping rear of the cash machine is either exposed in the lobby or inside a trivially secured room. Set off with skill, the shock wave leaves the money neatly stacked, sometimes with a whiff of the distinctive acetylene odor of garlic." The rise in gas attacks has created a market opportunity for the companies that construct ATM components. Several manufacturers now make various anti-gas-attack modules: Some absorb shock waves, some detect gas and render it harmless, and some emit sound, fog, or dye to discourage thieves in the act. As far as anyone knows, there has never been a gas attack on an American ATM. The leading theory points to the country's primitive ATM cards. Along with Mongolia, Papua New Guinea, and not many other countries, the U.S. doesn't require its plastic to contain an encryption chip, so stealing cards remains an effective, nonviolent way to get at the cash in an ATM. Encryption chip requirements are coming to the U.S. later this year, though. And given the gas raid's many advantages, it may be only a matter of time until the back of an American ATM comes rocketing off.

    Read more of this story at Slashdot.