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"In the Harry Potter world, Ravenclaws are known for being the smart ones. That's their thing. In fact, that was really all they were known for. In the books, each house could be boiled down to one or two words: Gryffindors are brave, Ravenclaws are smart, Slytherins are evil and/or racist, and Hufflepuffs are pathetic loyal. (Giving rise to this hilarious Second City mockery.)"

Robert Harvey asks: Occasionally I see questions about edge cases on Stack Overflow that are easily answered by the likes of Jon Skeet or Eric Lippert-experts who demonstrate a deep knowledge of a particular language and its many intricacies. Here's an example of this from Lippert's MSDN blog: You might think that in order to use a foreach loop, the collection you are iterating over must implement IEnumerable or IEnumerable. But as it turns out, that is not actually a requirement. What is required is that the type of the collection must have a public method called GetEnumerator, and that must return some type that has a public property getter called Current and a public method MoveNext that returns a bool. If the compiler can determine that all of those requirements are met then the code is generated to use those methods. Only if those requirements are not met do we check to see if the object implements IEnumerable or IEnumerable. This is cool stuff to know. I can understand why Eric knows this; he's on the compiler team, so it's explicitly in his job description to know. But how do mere mortals, those of us on the outside, find out about stuff like this?

"It's got to be one of the coolest names ever for a group: The Kansas Anti Zombie Militia. But the group is real and its members are pretty serious about it. Once the Zombie Apocalypse hits, they'll be ready for it and they want you to be too. "Can a natural person change into this monster that many fear?" Alfredo Carbajal, the militia's main spokesman, said in an interview. "The possibilities are yes, it can happen. We have seen incidents that are very close to it, and we are thinking it is more possible than people think.""

"Passwords control your life. From accessing work email and stock prices on the go to checking a grocery store shopping list, passwords have become the primary source of identifying who you are. They are arguably more important than your driver's license. But with that ubiquity comes risk - this tiny, yet powerful device contains enough information to expose your financial or health records and other personal details. From an enterprise perspective, the risks are just as great, if not greater."

Results from FIA Aalborg: The Internet of Things (IoT) is one of the most important fundaments for the smart cities, and is becoming slowly but steadily one of the core elements of the Future Internet (FI). In fact, various architectures and approaches from Future Internet such as Cloud Computing (Software as a Service - SaaS), which are being linked with the Web of Things, which is also allowing to define Sensors as a Service (SaaS) are clear examples of this relation between Future Internet and IoT architectures. At this particular point, where the IoT is a reality, where several IoT-based high scale deployments are being carried out such as Rome, and Santander. It is essential to discuss what are the IoT-specific aspects that the FI architecture has to take into account, in order to efficiently map the IoT architectures into an overall FI architecture, and particularly, how to manage rights of the individual (i.e. privacy) and its interaction with IoT objects taking into account aspects like delegation, access control as key aspects in the inclusion of the Internet of Things in the common lives with its total inclusion in the city of the future.

I gave a talk in late 2011 at 28C3 in Berlin called "The Coming War on General Purpose Computing" In a nutshell, its hypothesis was this: * Computers and the Internet are everywhere and the world is increasingly made of them. * We used to have separate categories of device: washing machines, VCRs, phones, cars, but now we just have computers in different cases. For example, modern cars are computers we put our bodies in and Boeing 747s are flying Solaris boxes, whereas hearing aids and pacemakers are computers we put in our body. * This means that all of our sociopolitical problems in the future will have a computer inside them, too-and a would-be regulator saying stuff like this: "Make it so that self-driving cars can't be programmed to drag race" "Make it so that bioscale 3D printers can't make harmful organisms or restricted compounds" Which is to say: "Make me a general-purpose computer that runs all programs except for one program that freaks me out."

In the video game Deus Ex: Human Revolution, neuroscience meets synthetic augmentation in a fascinating and terrifying manner. The game focuIn the video game Deus Ex: Human Revolution, neuroscience meets synthetic augmentation in a fascinating and terrifying manner. The game focuses on the war between people who are neurologically augmented, and those who are too principled (or too poor) to seek artificial augmentation.ses on the war between people who are neurologically augmented, and those who are too principled (or too poor) to seek artificial augmentation.

If you're taking a break from work to read this article, I've got one question for you: Are you crazy? I know you think no one will notice, and I know that everyone else does it. Perhaps your boss even approves of your Web surfing; maybe she's one of those new-age managers who believes the studies showing that short breaks improve workers' focus. But those studies shouldn't make you feel good about yourself. The fact that you need regular breaks only highlights how flawed you are as a worker. I don't mean to offend. It's just that I've seen your competition. Let me tell you: You are in peril.

We are living a unique moment in history. The development of communication technologies has produced a change in the modes of interaction of society, creating new forms of relating which are fundamentally different from those before. These new ways of relating and technologies have contributed to the emergence of new social and political movements. These movements, as exemplified by the Arab Spring, the democratisation movement in Iceland, and the 15M / TakeTheSquare / Occupy movement, are the most strinking examples of the potential of this new phase (together with other phenomena such as Wikileaks and Anonymous).

Let's say you have two hosts, somewhere out on the Internet: Maybe dedicated servers, maybe Amazon EC2 or Rackspace instances, maybe a mix of the above. Now assume it's your job to provide secure, encrypted connectivity between two services running on those hosts. If those services do not use an encrypted protocol by themselves - such as non-SSL capable SMTP mail servers - then the standard answer has always been: "Use stunnel or OpenVPN!". While both of those are good, cross-platform solutions which can forward unsecure traffic over an encrypted tunnel, I believe that they come not only with administrative overhead, but also introduce a significant performance hit. I believe that there are now solutions that are easier to use, more flexible and most importantly, deliver much better performance. In this article, I will compare stunnel performance  characteristics with vCider's virtual private network solution (sign up for use with up to 8 nodes is free). You will see that vCider not only offers more flexibility and is easier to use, but also provides significantly better network performance and reduced CPU load. For my test, I have created two Ubuntu instances on Rackspace. Please note that both stunnel as well as vCider can work across network and cloud provider boundaries.

While smartphones are awesome little computers, one of the things that really makes them useful is their built-in sensors - many apps are made possible via a phone's accelerometer, gyroscope, GPS, microphone, camera, or some combination of the bunch. The thing is, though, all of those sensors are stuck in the smartphone. What if you want to use your phone to monitor another device? Well, that's where NODE comes in. The proposed gadget could be placed on or near a device, and would wirelessly relay data from multiple onboard sensors, via Bluetooth.

The goal of the workshop is to explore ways to become better providers and connectors of knowledge in a world where the sources of knowledge are increasingly diverse and dispersed. At the World Bank, for example, we are seeking ways to connect with new centers of research, emerging communities of practice, and tap the practical experience of development organizations and the policy makers in rapidly developing economies. Our goal is to find better ways to connect those that have the development knowledge with those that need it, when they need it.

"Are more people doing wrong or are more people speaking up? Retractions of scientific papers have increased about tenfold during the past decade, with many studies crumbling in cases of high-profile research misconduct that ranges from plagiarism to image manipulation to outright data fabrication. When worries about somebody's work reach a critical point, it falls to a peer, supervisor, junior partner or uninvolved bystander to decide whether to keep mum or step up and blow the whistle. Doing the latter comes at significant risk, and the path is rarely simple. Some make their case and move on; others never give up. And in what seems to be a growing trend, anonymous watchdogs are airing their concerns through e-mail and public forums. Here, Nature profiles three markedly different stories of individuals who acted on their suspicions. Successful or otherwise, each case offers lessons for would-be tipsters."

The kinds of drones making the headlines daily are the heavily armed CIA and U.S. Army vehicles which routinely strike targets in Pakistan - killing terrorists and innocents alike. But the real high-tech story of surveillance drones is going on at a much smaller level, as tiny remote controlled vehicles based on insects are already likely being deployed. Over recent years a range of miniature drones, or micro air vehicles (MAVs), based on the same physics used by flying insects, have been presented to the public. The fear kicked off in 2007 when reports of bizarre flying objects hovering above anti-war protests sparked accusations that the U.S. government was accused of secretly developing robotic insect spies.

Malware researchers investigating a Trojan linked in a gaming forum as a how-to video for Diablo III got a surprise when the hacker started chatting with them-through a feature in the malware. Franklin Zhao & Jason Zhou of antivirus company AVG were looking for keylogging code in the malware with a debugger after downloading it to a virtual machine when a chat box popped up. The hacker asked, in Chinese, "What are you doing? Why are you researching my Trojan?"

"Here's an issue we don't talk about enough. Every year, peer-reviewed research journals publish hundreds of thousands of scientific papers. But every year, several hundred of those are retracted - essentially, unpublished. There's a number of reasons retraction happens. Sometimes, the researchers (or another group of scientists) will notice honest mistakes. Sometimes, other people will prove that the paper's results were totally wrong. And sometimes, scientists misbehave, plagiarizing their own work, plagiarizing others, or engaging in outright fraud. Officially, fraud only accounts for a small proportion of all retractions. But the number of annual retractions is growing, fast. And there's good reason to think that fraud plays a bigger role in science then we like to think. In fact, a study published a couple of weeks ago found that there was misconduct happening in 3/4ths of all retracted papers. Meanwhile, previous research has shown that, while only about .02% of all papers are retracted, 1-2% of scientists admit to having invented, fudged, or manipulated data at least once in their careers."

"Big Data is watching you. And it's big business. Credit card companies, for instance, are selling the data about what you're consuming. So why is it that you, as the person manufacturing the data, has no say over who's using it or what they're doing with it? "That's got to change," argues Rick Smolan who co-authored the book The Human Face of Big Data (available for download as a tab let app here) an ambitious project that aims to capture the "men, women, and children whose lives are being transformed by this data revolution.""

Can robots work as scientists? At first, this seems like a silly question. Computers are pervasive in science, and if you walk into a large university lab today, there's a good chance you'll find a fully fledged robot working alongside the lab-coat-wearing humans. Robots fill test tubes, make DNA microarrays, participate in archaeological digs, and survey the oceans. There are entire branches of science-climate modeling and genomics, for example-that wouldn't exist without powerful microprocessors. Machines even play an integral part in abstract fields of discovery. In experimental mathematics, humans rely on computers to inspire new lines of thinking and investigate hypotheses. In 1976, mathematicians used computers to prove the four-color theorem, and machines have since been used in several other proofs.

Note: this would make a good blog post Minimalist posters explain complex philosophical concepts with basic shapes When it comes to explaining philosophy, sometimes less is more - and we think this arresting collection of minimalist posters encompasses that idea perfectly. The illustrations you see featured below are from a a series entitled "Philographics," and were created by London-based graphic designer Genís Carreras. Using basic colors, simple geometric design, and concise definitions, Carreras manages to cram impressive amounts of information - on philosophical doctrines as diverse as hedonism, determinism, and existentialism - into a surprisingly simple and accessible package. We've included a sample of the collection below, but you'll find the series in its entirety, along with plenty more examples of Carreras' work, over on his website. The posters are also available for purchase via society6.

SANTA BARBARA-"Maybe we're just too dumb," Nobel laureate physicist David Gross mused in a lecture at Caltech two weeks ago. When someone of his level wonders whether the unification of physics will always be beyond mortal minds, it gets you worried. Since his lecture, I've been learning about a theory that seems to confirm Gross's worry. It is so ridiculously hard that it could be the subject of an Onion parody. But at the same time, I've been watching how physicists are trying to power through their intimidation, because the theory promises a new way of understanding what space and time really are, at a deep level.