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+ - Jedism becomes a serious religion->

Submitted by Anonymous Coward
An anonymous reader writes "390,127 Brits declared their religion as Jedism in their last census, many as a joke but some are quite serious, the BBC reports. Cambridge University Divinity Faculty researcher, Beth Singler, estimates at least 2,000 of them are "very genuine", around the same number as the Church of Scientology. The U.K. Church of Jedism has 200,000 members world wide. Their belief system has expanded well beyond the "Star Wars" sound track to include tenents from Taoism, Buddhism, Catholicism and Samura. Former priest, psychotherapist and writer Mark Vernon find says real power in the Jedi story. "The reason it's so powerful and universal is that we have to find ourselves. It's by losing ourselves and identifying with something greater like the Jedi myth that we find a fuller life.""
Link to Original Source
Classic Games (Games)

Tetris Is Hard To Test 28

Posted by Soulskill
from the deceptive-tetrominomic-compexity dept.
New submitter JackDW writes: Tetris is one of the best-known computer games ever made. It's easy to play but hard to master, and it's based on a NP-hard problem. But that's not all that's difficult about it. Though it's simple enough to be implemented in one line of BBC BASIC, it's complex enough to be really hard to thoroughly test.

It may seem like you can test everything in Tetris just by playing it for a few minutes, but this is very unlikely! As I explain in this article, the game is filled with special cases that rarely occur in normal play, and these can only be easily found with the help of a coverage tool.
Science

The Problem With Positive Thinking 52

Posted by Soulskill
from the take-that-optimists dept.
An anonymous reader writes: The NY Times explains research into how our mindset can influence results. The common refrain when striving for a goal is to stay positive and imagine success — people say this will help you accomplish what you want. But a series of psychological experiments show such thinking tends to have exactly the opposite effect. "In a 2011 study published in the Journal of Experimental Social Psychology, we asked two groups of college students to write about what lay in store for the coming week. One group was asked to imagine that the week would be great. The other group was just asked to write down any thoughts about the week that came to mind. The students who had positively fantasized reported feeling less energized than those in the control group. As we later documented, they also went on to accomplish less during that week." This research has been replicated across many types of people and many different goals.

Building on that research, the scientists developed a thought process called "mental contrasting," where people are encouraged to think about their dreams coming true only for a few minutes before dedicating just as much time to thinking about the obstacles they'll have to deal with. Experiments have demonstrated that subjects using these techniques were more successful at things like exercise and maintaining a healthy diet than a control group. "[D]reaming about the future calms you down, measurably reducing systolic blood pressure, but it also can drain you of the energy you need to take action in pursuit of your goals."
Hardware

Ask Slashdot: How Do I Make a High-Spec PC Waterproof? 90

Posted by Soulskill
from the lots-of-duct-tape dept.
jimwormold writes: I need to build a system for outdoor use, capable of withstanding a high pressure water jet! "Embedded PC," I hear you cry. Well, ideally yes. However, the system does a fair bit of number crunching on a GPU (GTX970) and there don't appear to be any such embedded systems available. The perfect solution will be as small as possible (ideally about 1.5x the size of a motherboard, and the height will be limited to accommodate the graphics card). I'm U.K.- based, so the ambient temperature will range from -5C to 30C, so I presume some sort of active temperature control would be useful.

I found this helpful discussion, but it's 14 years old. Thus, I thought I'd post my question here. Do any of you enlightened Slashdotters have insights to this problem, or know of any products that will help me achieve my goals?

+ - The Problem With Positive Thinking->

Submitted by Anonymous Coward
An anonymous reader writes "The NY Times explains research into how our mindset can influence our results. The common refrain when striving for a goal is to stay positive and imagine success to help you reach that goal. But a series of psychological experiments show such thinking tends to have exactly the opposite effect. "In a 2011 study published in the Journal of Experimental Social Psychology, we asked two groups of college students to write about what lay in store for the coming week. One group was asked to imagine that the week would be great. The other group was just asked to write down any thoughts about the week that came to mind. The students who had positively fantasized reported feeling less energized than those in the control group. As we later documented, they also went on to accomplish less during that week." This research has been replicated across many types of people and many different goals.

Building on that research, the scientists developed a thought process called "mental contrasting," where people are encouraged to think about their dreams coming true only for a few minutes before dedicating just as much time to thinking about the obstacles they'll have to deal with. Experiments have demonstrated that subjects using these techniques were more successful at things like exercise and maintaining a healthy diet than a control group. "[D]reaming about the future calms you down, measurably reducing systolic blood pressure, but it also can drain you of the energy you need to take action in pursuit of your goals.""

Link to Original Source

+ - When Snowden speaks, future lawyers (and judges) listen->

Submitted by TheRealHocusLocus
TheRealHocusLocus (2319802) writes "We are witness to an historic 'first': an individual charged with espionage and actively sought by the United States government has been (virtually) invited to speak at Harvard Law School, with applause. HLS Professor Lawrence Lessig conducted the hour-long interview last Monday with a list of questions by himself and his students.

Some interesting jumps are Snowden's assertion that mass domestic intercept is an 'unreasonable seizure' under the 4th Amendment, it also violates 'natural rights' that cannot be voted away even by the majority, a claim that broad surveillance detracts from the ability to monitor specific targets such as the Boston Marathon bombers, calls out Congress for not holding Clapper accountable for misstatements, and laments that contractors are exempt from whistleblower protection though they do swear an oath to defend the Constitution from enemies both foreign and domestic. These points have been brought up before. But what may be most interesting to these students is Snowden's suggestion that a defendant under the Espionage act be permitted to present an argument before a jury that the act was committed "in the public interest". Could this pure-judicial move help ensure a fair trial for whistleblowers whose testimony reveals Constitutional violation?

Professor Lessig wraps up the interview by asking Snowden, Hoodies or Suits? “Hoodies all the way. I hope in the next generation we don't even have suits anymore, they're just gone forever.”"

Link to Original Source
Chromium

Building All the Major Open-Source Web Browsers 59

Posted by Soulskill
from the who-needs-packages dept.
An anonymous reader writes: Cristophe de Dinechin, long-time software developer, has an interesting article on the processes involved in building the major browsers. From the article:

"Mozilla Firefox, Chromium (the open-source variant of Chrome) and WebKit (the basis for Safari) are all great examples of open-source software. The Qt project has a simple webkit-based web browser in their examples. So that's at least four different open-source web browsers to choose from. But what does it take to actually build them? The TL;DR answer is that these are complex pieces of software, each of them with rather idiosyncratic build systems, and that you should consider 100GB of disk space to build all the browsers, a few hours of download, and be prepared to learn lots of new, rather specific tools."

+ - Tetris is hard to test->

Submitted by JackDW
JackDW (904211) writes "Tetris is one of the best-known computer games ever made. It's easy to play but hard to master, and it's based on a NP-hard problem. But that's not all that's difficult about it. Though it's simple enough to be implemented in one line of BBC BASIC, it's complex enough to be really hard to thoroughly test.

It may seem like you can test everything in Tetris just by playing it for a few minutes, but this is very unlikely! As I explain in this article, the game is filled with special cases that rarely occur in normal play, and these can only be easily found with the help of a coverage tool."

Link to Original Source
Displays

New Oculus SDK Adds Experimental Linux Support and Unity Free For Rift Headset 19

Posted by Soulskill
from the immersive-tux dept.
An anonymous reader writes: Oculus, creator of the Rift VR headset, has released a new version of their SDK which brings with it long sought-after support for Linux, which the company says is "experimental." Linux support was previously unavailable since the launch of the company's second development kit, the DK2. The latest SDK update also adds support for Unity Free, the non-commercial version of the popular game authoring engine. Previously, Unity developers needed the Pro version—costing $1,500 or $75/month—to create experiences for the Oculus Rift.
Wireless Networking

FCC Postpones Spectrum Auction Until 2016 24

Posted by Soulskill
from the no-extra-spectrum-for-you dept.
An anonymous reader writes: 2014 was supposed to be the year broadcasters would be allowed to sell off their unused spectrum to mobile carriers. That got pushed back to 2015 in December, and now the Federal Communications Commission has bumped it to 2016 in the face of a lawsuit from the National Association of Broadcasters. The FCC says the legal briefs aren't even due until January 2015, and it will take them until the middle of the year to review the documents and respond in court. The delay is just fine with the NAB, but probably bad news for anyone hoping that spectrum would help to improve mobile communications in the U.S. any time soon.

+ - Building all the major open-source web browsers->

Submitted by Anonymous Coward
An anonymous reader writes "Cristophe de Dinechin, long-time software developer, has an interesting article on the processes involved in building the major browsers. From the article:

Mozilla Firefox, Chromium (the open-source variant of Chrome) and WebKit (the basis for Safari) are all great examples of open-source software. The Qt project has a simple webkit-based web browser in their examples. So that’s at least four different open-source web browsers to choose from.

But what does it take to actually build them? The TL;DR answer is that these are complex pieces of software, each of them with rather idiosyncratic build systems, and that you should consider 100GB of disk space to build all the browsers, a few hours of download, and be prepared to learn lots of new, rather specific tools.

"

Link to Original Source
Earth

EU Sets Goal To Cut Greenhouse Gas Emissions 40% By 2030 92

Posted by Soulskill
from the go-big-or-go-home dept.
An anonymous reader writes: The 28 nations in the European Union agreed Friday to reduce greenhouse gas emissions 40% (going by 1990 levels) by the year 2030. The deal received widespread criticism; industry bosses said the 2030 targets were too extreme, while many environmental groups said the goals weren't ambitious enough. The deal requires each nation to achieve the goal independently — earlier targets could use international offsets to avoid or reduce action. EU officials hope the agreement will encourage the U.S. and China to take a more aggressive stance on fighting climate change.

+ - New Oculus SDK Adds Experimental Linux Support and Unity Free for Rift Headset->

Submitted by Anonymous Coward
An anonymous reader writes "Oculus, creator of the Rift VR headset, has released a new version of their SDK which brings with it long sought after support for Linux, which the company says is "experimental". Linux support was previously unavailable since the launch of the company's second development kit, the DK2 (http://www.oculus.com/dk2/). The latest SDK update also adds support for Unity Free (https://unity3d.com/unity/download), the non-commercial version of the popular game authoring engine. Previously, Unity developers needed the Pro version—costing $1,500 or $75/month—to create experiences for the Oculus Rift."
Link to Original Source
Science

High Speed Evolution 221

Posted by Soulskill
from the turned-up-to-11 dept.
Taco Cowboy writes: Normally, the term "evolution" implicitly refers to super-long time frames. However, in the case of lizards on Florida islands, evolution seems to have shifted into a higher gear. Researchers have documented noticeable changes in a native species over a period of just 15 years, after an invading species altered their behavior (abstract). "After contact with the invasive species, the native lizards began perching higher in trees, and, generation after generation, their feet evolved to become better at gripping the thinner, smoother branches found higher up. The change occurred at an astonishing pace: Within a few months, native lizards had begun shifting to higher perches, and over the course of 15 years and 20 generations, their toe pads had become larger, with more sticky scales on their feet.

'We did predict that we'd see a change, but the degree and quickness with which they evolved was surprising,' said Yoel Stuart, a postdoctoral researcher in the Department of Integrative Biology at The University of Texas at Austin and lead author of the study... 'To put this shift in perspective, if human height were evolving as fast as these lizards' toes, the height of an average American man would increase from about 5 foot 9 inches today to about 6 foot 4 inches within 20 generations — an increase that would make the average U.S. male the height of an NBA shooting guard,' said Stuart."
Operating Systems

Italian Supreme Court Bans the 'Microsoft Tax' 251

Posted by Soulskill
from the making-hardware-a-bit-cheaper dept.
An anonymous reader writes: In a post at the Free Software Foundation, lawyer Marco Ciurcina reports that the Italian Supreme Court has ruled the practice of forcing users to pay for a Windows license when they buy a new PC is illegal. Manufacturers in Italy are now legally obligated to refund that money if a buyer wants to put GNU/Linux or another free OS on the computer. Ciurcina says, "The focus of the Court's reasoning is that the sale of a PC with software preinstalled is not like the sale of a car with its components (the 4 wheels, the engine, etc.) that therefore are sold jointly. Buying a computer with preinstalled software, the user is required to conclude two different contracts: the first, when he buys the computer; the second, when he turns on the computer for the first time and he is required to accept or not the license terms of the preinstalled software. Therefore, if the user does not accept the software license, he has the right to keep the computer and install free software without having to pay the 'Microsoft tax.'"

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