Forgot your password?
typodupeerror

Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

Power

'Thermoelectrics' Could One Day Power Cars 125

Posted by Soulskill
from the hot-wheels dept.
sciencehabit writes: "Fossil fuels power modern society by generating heat, but much of that heat is wasted. Researchers have tried to reclaim some of it with semiconductor devices called thermoelectrics, which convert the heat into power. But they remain too inefficient and expensive to be useful beyond a handful of niche applications. Now, scientists in Illinois report that they have used a cheap, well-known material to create the most heat-hungry thermoelectric so far (abstract). In the process, the researchers say, they learned valuable lessons that could push the materials to the efficiencies needed for widespread applications. If that happens, thermoelectrics could one day power cars and scavenge energy from myriad engines, boilers, and electrical plants."
Power

Lack of US Cybersecurity Across the Electric Grid 93

Posted by Soulskill
from the asking-for-trouble dept.
Lasrick writes: "Meghan McGuinness of the Bipartisan Policy Center writes about the Electric Grid Cybersecurity Initiative, a collaborative effort between the center's Energy and Homeland Security Projects. She points out that over half the attacks on U.S. critical infrastructure sectors last year were on the energy sector. Cyber attacks could come from a variety of sources, and 'a large-scale cyber attack or combined cyber and physical attack could lead to enormous costs, potentially triggering sustained power outages over large portions of the electric grid and prolonged disruptions in communications, food and water supplies, and health care delivery.' ECGI is recommending the creation of a new, industry-supported model that would create incentives for the continual improvement and adaptation needed to respond effectively to rapidly evolving cyber threats. The vulnerability of the grid has been much discussed this last week; McGuinness's recommendations are a good place to start."
Encryption

Snowden Used the Linux Distro Designed For Internet Anonymity 165

Posted by Soulskill
from the NSA-can't-make-heads-or-something-of-it dept.
Hugh Pickens DOT Com writes: "When Edward Snowden first emailed Glenn Greenwald, he insisted on using email encryption software called PGP for all communications. Now Klint Finley reports that Snowden also used The Amnesic Incognito Live System (Tails) to keep his communications out of the NSA's prying eyes. Tails is a kind of computer-in-a-box using a version of the Linux operating system optimized for anonymity that you install on a DVD or USB drive, boot your computer from and you're pretty close to anonymous on the internet. 'Snowden, Greenwald and their collaborator, documentary film maker Laura Poitras, used it because, by design, Tails doesn't store any data locally,' writes Finley. 'This makes it virtually immune to malicious software, and prevents someone from performing effective forensics on the computer after the fact. That protects both the journalists, and often more importantly, their sources.'

The developers of Tails are, appropriately, anonymous. They're protecting their identities, in part, to help protect the code from government interference. 'The NSA has been pressuring free software projects and developers in various ways,' the group says. But since we don't know who wrote Tails, how do we know it isn't some government plot designed to snare activists or criminals? A couple of ways, actually. One of the Snowden leaks show the NSA complaining about Tails in a Power Point Slide; if it's bad for the NSA, it's safe to say it's good for privacy. And all of the Tails code is open source, so it can be inspected by anyone worried about foul play. 'With Tails,' say the distro developers, 'we provide a tongue and a pen protected by state-of-the-art cryptography to guarantee basic human rights and allow journalists worldwide to work and communicate freely and without fear of reprisal.'"
Science

Paper Microscope Magnifies Objects 2100 Times and Costs Less Than $1 87

Posted by Soulskill
from the i-can-see-my-house-from-here dept.
ananyo writes: "If ever a technology were ripe for disruption, it is the microscope. Microscopes are expensive and need to be serviced and maintained. Unfortunately, one important use of them is in poor-world laboratories and clinics, for identifying pathogens, and such places often have small budgets and lack suitably trained technicians. Now Manu Prakash, a bioengineer at Stanford University, has designed a microscope made almost entirely of paper, which is so cheap that the question of servicing it goes out of the window. Individual Foldscopes are printed on A4 sheets of paper (ideally polymer-coated for durability). A pattern of perforations on the sheet marks out the 'scope's components, which are colour-coded in a way intended to assist the user in the task of assembly. The Foldscope's non-paper components, a poppy-seed-sized spherical lens made of borosilicate or corundum, a light-emitting diode (LED), a watch battery, a switch and some copper tape to complete the electrical circuit, are pressed into or bonded onto the paper. (The lenses are actually bits of abrasive grit intended to roll around in tumblers that smooth-off metal parts.) A high-resolution version of this costs less than a dollar, and offers a magnification of up to 2,100 times and a resolving power of less than a micron. A lower-spec version (up to 400x magnification) costs less than 60 cents."
Earth

Climate Scientist: Climate Engineering Might Be the Answer To Warming 338

Posted by samzenpus
from the warm-up-the-cloud-gun dept.
Lasrick (2629253) writes "Tom Wigley is one of the world's top climate scientists, and in this interview he explains his outspoken support for both nuclear energy and research into climate engineering. Wigley was one of the first scientists to break the taboo on public discussion of climate engineering as a possible response to global warming; in a 2006 paper in the journal Science, he proposed a combined geoengineering-mitigation strategy that would address the problem of increasing ocean acidity, as well as the problem of climate change. In this interview, he argues that renewable energy alone will not be sufficient to address the climate challenge, because it cannot be scaled up quickly and cheaply enough, and that opposition to nuclear power 'threatens humanity's ability to avoid dangerous climate change.'"
Google

Mr. Schmidt Goes To Washington: A Look Inside Google's Lobbying Behemoth 113

Posted by samzenpus
from the mr.-president-we-seem-to-be-alone dept.
barlevg (2111272) writes "In May 2012, in the midst of an FTC investigation into Google's search practices, the law school at George Mason University in Northern Virginia hosted a conference attended by congressmen, regulators and staffers. The topic: competition, search and social media. What none of the attendees of the conference knew was that Google was pulling many of the strings behind the event, even going so far as to suggest invited speakers. This event, as documented in The Washington Post is just a snapshot of the operations of one of the largest and highest spending lobbying entities in DC, a far cry from the one-man shop it started out as nine years ago, from a company "disdainful" of Washington's "pay-to-play" culture."
Earth

UN: Renewables, Nuclear Must Triple To Save Climate 424

Posted by samzenpus
from the its-getting-hot-in-here dept.
An anonymous reader writes "On the heels of a study that concluded there was less than a 1% chance that current global warming could be simple fluctuations, U.N. scientists say energy from renewables, nuclear reactors and power plants that use emissions-capture technology needs to triple in order keep climate change within safe limits. From The Washington Post: 'During a news conference Sunday, another co-chair, Rajendra K. Pachauri of India, said the goal of limiting a rise in global temperatures "cannot be achieved without cooperation." He added, "What comes out very clearly from this report is that the high-speed mitigation train needs to leave the station soon, and all of global society needs to get on board."'"
Open Source

Linux 3.15 Will Suspend & Resume Much Faster 116

Posted by Soulskill
from the cutting-into-my-foot-tapping-time dept.
An anonymous reader writes "The Linux 3.15 kernel now in its early life will be able to suspend and resume much faster than previous versions of the Linux kernel. A few days ago we saw ACPI and Power Management updates that enable asynchronous threads for more suspend and resume callbacks. Carrying out more async operations leads to reduced time for the system suspend and then resuming. According to one developer, it was about an 80% time savings within one of the phases. On Friday, work was merged that ensured the kernel is no longer blocked by waiting for ATA devices to resume. Multiple ATA devices can be woken up simultaneously, and any ATA commands for the device(s) will be queued until they have powered up. According to an 01.org blog post on the ATA/SCSI resume optimization patches, when tested on three Intel Linux systems the resume time was between 7x and 12x faster (not including the latest ACPI/PM S&R optimizations)."
Government

Cost Skyrockets For United States' Share of ITER Fusion Project 172

Posted by Soulskill
from the burning-plasma-and-benjamins dept.
sciencehabit writes: "ITER, the international fusion experiment under construction in Cadarache, France, aims to prove that nuclear fusion is a viable power source by creating a 'burning plasma' that produces more energy than the machine itself consumes. Although that goal is at least 20 years away, ITER is already burning through money at a prodigious pace. The United States is only a minor partner in the project, which began construction in 2008. But the U.S. contribution to ITER will total $3.9 billion — roughly four times as much as originally estimated — according to a new cost estimate released yesterday. That is about $1.4 billion higher than a 2011 cost estimate, and the numbers are likely to intensify doubts among some members of Congress about continuing the U.S. involvement in the project."
Power

$250K Reward Offered In California Power Grid Attack 111

Posted by Soulskill
from the power-up-the-manhunt dept.
An anonymous reader writes "The Associated Press reports that Pacific Gas & Electric Co. has put up a $250,000 reward for 'information leading to an arrest and conviction in a startling attack mounted nearly a year ago on telephone lines and the power grid in Silicon Valley.' Besides cutting power lines, the attackers also cut AT&T fiber-optic phone lines, thereby denying some people access to 911, and fired shots into a PB&E substation, knocking out 17 transformers in Silicon Valley and causing $15 million in damage. As of this post, the perpetrators are still unidentified and continue to elude the FBI. Meanwhile, the Federal Energy Regulatory Commission (FERC) on Thursday was brought before the Senate Energy Committee to explain why the FERC disseminated via insecure media a sensitive document describing where all the nation's power grids are particularly sensitive to a physical attack. FERC responded with assurances that databases are currently being scrubbed and procedures being implemented to safeguard critical data."
Sony

Fire Risk From Panasonic Batteries In Sony Vaio Laptops 36

Posted by Soulskill
from the reclassified-as-variable-BTU-heating-units dept.
jones_supa writes: "Sony is warning about a potential fire risk in some of its Vaio Fit 11A portable notebooks (the final model under the Vaio brand, which was sold off in February). The company is asking customers to stop using this laptop model as soon as possible. Sony said it had received three reports of overheating batteries causing partial burns to Vaio computers. The company stopped selling the product at the beginning of this month, with nearly 26,000 units in the wild. The manufacturer and company responsible for the faulty batteries is Panasonic. 'A Panasonic spokeswoman confirmed the company had provided the batteries to Sony under an outsourcing contract. She declined to say which other computer makers had received Panasonic batteries, as such information is confidential. However, she said the batteries are customized according to clients' requirements and differ depending on client.'"
Earth

93 Harvard Faculty Members Call On the University To Divest From Fossil Fuels 214

Posted by samzenpus
from the stop-burning-bro dept.
Daniel_Stuckey writes: "One hundred faculty members at one of the nation's most renowned university have signed an open letter calling on Harvard to divest its holdings in fossil fuel companies. Harvard's is the largest university endowment in the world. For the last few years, a national movement has called on on universities, foundations, and municipalities to divest from fossil fuels. Led by students, as well as organized groups like 350.org, it has seen a number of significant victories — at least nine colleges and over a dozen cities have pulled their investments in companies that extract or burn fossil fuels like coal and oil."
Intel

Intel and SGI Test Full-Immersion Cooling For Servers 101

Posted by samzenpus
from the cooling-it-down dept.
itwbennett (1594911) writes "Intel and SGI have built a proof-of-concept supercomputer that's kept cool using a fluid developed by 3M called Novec that is already used in fire suppression systems. The technology, which could replace fans and eliminate the need to use tons of municipal water to cool data centers, has the potential to slash data-center energy bills by more than 90 percent, said Michael Patterson, senior power and thermal architect at Intel. But there are several challenges, including the need to design new motherboards and servers."
AMD

AMD Unveils the Liquid-Cooled, Dual-GPU Radeon R9 295X2 At $1,500 146

Posted by timothy
from the for-$1500-it-should-unveil-itself dept.
wesbascas (2475022) writes "This morning, AMD unveiled its latest flagship graphics board: the $1,500, liquid-cooled, dual-GPU Radeon R9 295X2. With a pair of Hawaii GPUs that power the company's top-end single-GPU Radeon R9 290X, the new board is sure to make waves at price points that Nvidia currently dominates. In gaming benchmarks, the R9 295X2 performs pretty much in line with a pair of R9 290X cards in CrossFire. However, the R9 295X2 uses specially-binned GPUs which enable the card to run with less power than a duo of the single-GPU cards. Plus, thanks to the closed-loop liquid cooler, the R9 295X doesn't succumb to the nasty throttling issues present on the R9 290X, nor its noisy solution."
Power

Qualcomm Announces Next-Gen Snapdragon 808 and 810 SoCs 47

Posted by Unknown Lamer
from the all-the-better-to-melt-your-pocket dept.
MojoKid (1002251) writes "Qualcomm has announced two fundamentally new chips today with updated CPU cores as well as Qualcomm's new Adreno 400-class GPU. The Snapdragon 808 and the Snapdragon 810 have been unveiled with a host of new architectural enhancements. The Snapdragon 810 will be the highest-end solution, with a quad-core ARM Cortex-A57 paired alongside four low-power Cortex-A53 cores.

The Snapdragon 808 will also use a big.Little design, but the core layouts will be asymmetric — two Cortex-A57's paired with four Cortex-A53's. The Cortex-A57 is, by all accounts, an extremely capable processor — which means a pair of them in a dual-core configuration should be more than capable of driving a high-end smartphone. Both SoC's will use a 20nm radio and a 28nm RF transceiver. That's a major step forward for Qualcomm (most RF today is built on 40nm). RF circuits typically lag behind digital logic by at least one process node. Given that RF currently accounts for some 15% of the total area and 30-40% of the PCB, the benefits of moving to a smaller manufacturing process for the RF circuit are significant."
To clarify, the 810 can use a combination of the Cortex-A57 and Cortex-A53 cores so a single task that needs a lot of power won't cause as large of a power jump. All of the chips are 64-bit ARM too.
Data Storage

Seagate Releases 6TB Hard Drive Sans Helium 147

Posted by Unknown Lamer
from the platters-like-to-breathe dept.
Lucas123 (935744) writes "Seagate has released what it said is the industry's fastest hard drive with up to a 6TB capacity, matching one released by WD last year. WD's 6TB Ultrastar He6 was hermetically sealed with helium inside, something the company said was critical to reducing friction for additional platters, while also increasing power savings and reliability. Seagate, however, said it doesn't yet need to rely on Helium to achieve the 50% increase in capacity over its last 4TB drive. The company used the same perpendicular magnetic recording technology that it has on previous models, but it was able to increase areal density from 831 bits per square inch to 1,000. The new drive also comes in 2TB, 4TB and 5TB capacities and with either 12Gbps SAS or 6Gbps SATA connectivity. The six-platter, enterprise-class drive is rated to sustain about 550TB of writes per year — 10X that of a typical desktop drive."
Power

Tesla: A Carmaker Or Grid-Storage Company? 151

Posted by samzenpus
from the power-up dept.
cartechboy (2660665) writes "Let's be real, the three Detroit automakers were skeptical of Tesla Motors, and rightfully so. But at this point, it's pretty hard to deny the impact this Silicon Valley automaker is having on the industry. Now there's a new question buzzing around: Is Tesla Motors actually a carmaker, or is it really just a grid-storage company? If you think about it, the company's stock price is too high for Toyota or Daimler to just buy it outright. So maybe Tesla's gigafactory will not only make batteries for its own electric cars, but it could also sell battery packs to electric utilities and others. In reality, the gigafactory could become its own separate company and just sell the battery packs to Tesla, and others."
Technology

A Bid To Take 3D Printing Mainstream 143

Posted by samzenpus
from the grandma's-printed-cookies dept.
Nerval's Lobster (2598977) writes "Can 3D printing go truly mainstream? Startup M3D is betting on it, having launched a Kickstarter campaign to create what it terms the first truly consumer 3D printer, built around proprietary auto-leveling and auto-calibration technology that (it claims) will allow the device to run in an efficient, easy-to-use way for quite some time. According to The Verge, the device is space-efficient, quiet, and sips power: 'One of the main obstacles between 3D printers and consumers has been clunky, unintuitive software. Here too, M3D promises improvements, having designed an app that's 'as interactive and enjoyable as a game' with a minimalist and touch-friendly interface.' Do you think 3D printing can capture a massive audience, or will it remain niche for the foreseeable future?"
Power

Nanodot-Based Smartphone Battery Recharges In 30 Seconds 227

Posted by samzenpus
from the greased-lightning dept.
Zothecula (1870348) writes "At Microsoft's Think Next symposium in Tel Aviv, Israeli startup StoreDot has demonstrated the prototype of a nanodot-based smartphone battery it claims can fully charge in just under 30 seconds. With the company having plans for mass production, this technology could change the way we interact with portable electronics, and perhaps even help realize the dream of a fast-charging electric car."
News

Judge (Tech) Advice By Results 162

Posted by samzenpus
from the listen-up dept.
Bennett Haselton writes "What advice would you give someone who just bought a new laptop? What would you tell someone about how to secure their webserver against attacks? For that matter, how would you tell someone to prepare for their first year at Burning Man? I submit that the metric by which we usually judge tech advice, and advice in general, is fundamentally flawed, and has bred much of the unhelpful tech advice out there." Read below to see what Bennett has to say.

"From there to here, from here to there, funny things are everywhere." -- Dr. Seuss

Working...