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Submission + - Fuel cell-powered data centres could cut costs, carbon (computerworld.com.au)

angry tapir writes: A group of Microsoft researchers believe that using fuel cells to power data centres could potentially result in an "over 20% reduction in costs using conservative projections", cutting infrastructure and power input costs. In addition, using fuel cells would likely result in a smaller carbon footprint for data centres. The researchers looked at the potential of using fuel cells at the rack level to power servers in data centres — although they note there is a long way to go before this could become a reality (not least of the small worldwide production level of fuel cells).

Submission + - The NSA Revelations Decoded (theguardian.com)

Robotron23 writes: The Guardian has published a comprehensive review of the revelations derived from leaked documents published by Edward Snowden. Among the topics covered are NSA monitoring programs and techniques, the legal framework of such programs, counter-surveillance techniques, events such as the Lavabit shutdown, and prospects for reform. In the final section, some NSA documents are available for access.

Submission + - Linux 3.12 Release, Linux 4.0 Kernel With Only Bug-Fixes Proposed (phoronix.com)

An anonymous reader writes: Linus Torvalds announced the Linux 3.12 kernel release with a large number of improvements through many subsystems including new EXT4 file-system features, AMD Berlin APU support, a major CPUfreq governor improvement yielding impressive performance boosts for certain hardware/workloads, new drivers, and continued bug-fixing. Linus also took the opportunity to share possible plans for Linux 4.0. He's thinking of tagging Linux 4.0 following the Linux 3.19 release in about one year and is also considering the idea of Linux 4.0 being a release cycle with nothing but bug-fixes. Does Linux really need an entire two-month release cycle with nothing but bug-fixing? It's still to be decided by the kernel developers.

Comment WiFi (Score 2) 285

I backup my iMac to a Time Capsule over WiFi. It happens to be located in my home, but it could just as well be next door, wouldn't make a difference. So if your neighbour is what we city dwellers think "neighbour" means and not "the next ranch ten miles down the river", that might work.

So basically, get a WiFi-enabled harddrive. Or a WiFi router with a USB port. Initial backup via USB or whatever, and incremental updates are usually small enough that they can happen in the background. On the Mac that's built-in, I'm sure there's software for Linux and maybe that hobby OS from Redmond a few people here use.

Submission + - Microsoft Admits Windows 8.1 Update May Bork Your Mouse, Promises a Fix (hothardware.com)

MojoKid writes: Microsoft has several valid reasons why you should upgrade to Windows 8.1, which is free if you already own Windows 8. However, there's a known issue that might give some gamers pause before clicking through in the Windows Store. There have been complaints of mouse problems after applying the Windows 8.1 update, most of which have been related to lag in video games, though Microsoft confirmed there are other potential quirks. Acknowledging the problem, Microsoft says it's also actively investigating the issues and working on a patch.

Comment Re:The Rancidest Hole of All (Score 4, Funny) 465

My, my, my... What do we have here? I've never seen such a rancid asshole before! My cock will now become One With Bayerhole right this minuteness! I can't wait to shoot my ass-seeking cock right into your rancidhole and get this fucking party started! What say you?

You would think that General Keith Alexander, head of the National Security Agency, would have something better to do than troll a Slashdot comments section. Aren't there illegal wiretaps to order or surveillance records to be shredded?

Submission + - Project seeks to build inexpensive 9-inch monitor for Raspberry Pi (computerworld.com.au)

angry tapir writes: A Kickstarter project is aiming to bring an inexpensive 9-inch portable monitor to the popular US$25 Raspberry Pi PC, which comes without a keyboard, mouse or monitor. The "HDMIPi" will include an LCD panel that will show images at a resolution of 1280 x 800 pixels. Computers can be hooked up to the monitor via an HDMI controller board that can be wired to the LCD. The display is being made by Raspi.TV and Cyntech.

Comment Re:Don't teach, and certainly don't learn ... (Score 2) 465

The way I see it, no one would be using encryption nowadays if Obama managed to be president in the nineties.

Not before 1997, according to the age rules in the constitution. Since Obama was born in August 1961, this limits his eligibility for presidency to August 1996 onwards, which effectively means January 1997 onwards due to the schedule of presidencies in the US.

Submission + - Intel Open-Sources Broadwell GPU Driver & Indicates Major Silicon Changes (phoronix.com)

An anonymous reader writes: Intel shipped open-source Broadwell graphics driver support for Linux this weekend. While building upon the existing Intel Linux GPU driver, the kernel driver changes are significant in size for Broadwell. Code comments from Intel indicate that these processors shipping in 2014 will have "some of the biggest changes we've seen on the execution and memory management side of the GPU" and "dwarf any other silicon iteration during my tenure, and certainly can compete with the likes of the gen3->gen4 changes." Come next year, Intel may now be able to better take on AMD and NVIDIA discrete graphics solutions.

Submission + - Has anyone thought about stacking solar collectors?

jtalle writes: Photovoltaic cells have been around for a long time. Thermpiles have been around a long time, but now there are ways to convert temperatures as low as normal body temperature by using thermoelectric generator to electricity. Now, there's polymer solar-photovoltaic-thermal devices that are transparent almost like glass and convert the incoming infrared energy to electricity.

Each solution is less than 100% efficient. For example, a photovoltaic cell captures between 6% and 40% of the available energy depending on the type of cell. The excess energy is converted to heat, which is lost as 'rejected energy'.

That got me thinking that it should be possible to stack these technologies. In this case, a combined stack of polymer/photovoltaic/thermal generator layers should be able to each use what is the waste product of the others.. Yet I find very little information about this in the search engines. That's got to be possible, right?

Submission + - Full Details of My Attempted Entrapment for Teaching Polygraph Countermeasures

George Maschke writes: In May of this year, I was the target of an attempted entrapment, evidently in connection with material support for terrorism. Marisa Taylor of McClatchy reported briefly on this in August. I've now published a full public accounting, including the raw source of the e-mails received and the IP addresses involved. Comments from Slashdot readers more technically savvy than I are welcome.

Submission + - Pilot blinded at 1000 mph by helmet technical glitch .. (independent.co.uk)

codeusirae writes: RAF pilots were left “blinded” by a barrage of images while flying at speeds of over 1,000 mph when a number of technical glitches hit their high-tech helmets.

The visors were supposed to provide the fighter pilots with complete vision and awareness, but problems with the display produced a blurring known as “green-glow”, meaning they were unable to see clearly.

The green glow occurred when a mass of information was displayed on the helmet-mounted display systems, including radar pictures and images from cameras mounted around the aircraft.

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