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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?

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.

There's a new TED-Ed series that tackles questions that we don't know the answer to. In this first episode, TED Curator Chris Anderson asks: How many universes are there? And Why can't we see evidence of alien life? On the latter question, his answers are somewhat pedestrian and even outlandish, but Anderson takes a wide swath at the possibilities and includes some genuine solutions, including the Great Filter and postbiological existence.

For me, roller derby began with a very steep learning curve. I didn't know how to skate, I didn't know the rules, and so every practice left me physically and mentally exhausted. I did bring my own skill set to the sport: I've been an athlete my whole life, and played many a contact sport, and so some parts of roller derby - the physical fitness, hitting, body awareness, cross-training and nutrition - came easily.

The company's social scientists are hunting for insights about human behavior. What they find could give Facebook new ways to cash in on our data-and remake our view of society.

When Jonathan Goldman arrived for work in June 2006 at LinkedIn, the business networking site, the place still felt like a start-up. The company had just under 8 million accounts, and the number was growing quickly as existing members invited their friends and colleagues to join. But users weren't seeking out connections with the people who were already on the site at the rate executives had expected. Something was apparently missing in the social experience. As one LinkedIn manager put it, "It was like arriving at a conference reception and realizing you don't know anyone. So you just stand in the corner sipping your drink-and you probably leave early."

Did you know everything important about your personality, morality and worldview can be defined into one of nine categories? It's true… at least if you're a Dungeons & Dragons character from the first to third editions. Not every tabletop role-player has been a a fan of D&D's Alignment system, which help players define their characters' behavior, but now that Wizards of the Coast is hard at work on D&D's fifth edition, I'd like to make an earnest plea for them to bring it back in its original, nine-aspect glory by showcasing the Alignments from best to worst.

It seems that more and more policy makers, advocacy groups, advertisers and media pundits are making claims based on science: this kind of potion is good for your health, that chemical is bad for the environment, this new technology can reduce crime. How is the public supposed to know what to believe?

"In recent years, researchers in the messy world of biology have been able to build systems that function like the clean, binary switches on computer chips-and we've covered a number of reports in this area. Unfortunately, most of these share a significant limitation: they rely on proteins from bacteria that act as switches to turn genes on and off under specific conditions. We know about only a limited number of these genetic switches, which may set a severe limit on the number of logical operations we can string together inside a cell."

"Businesses invest billions of dollars annually in market research studies developing and testing new ideas by asking consumers questions they simply can't answer. Asking consumers what they want, or why they do what they do, is like asking the political affiliation of a tuna fish sandwich. That's because neuroscience is now telling us that consumers, i.e., humans, make the vast majority of their decisions unconsciously. Steve Jobs didn't believe in market research. When a reporter once asked him how much research he conducted to develop the iPad, he quipped, "None. It isn't the consumers' job to know what they want." And according to some measures, the iPad became the most successful consumer product launch ever and Apple went on to become the most valuable company of all-time."

For those of you who don't know, the Raspberry Pi is a "credit-card sized computer that plugs into your TV and a keyboard."   While "underpowered" compared to full sized traditional computers, there are some ground-breaking distinctions.  The Raspberry Pi Model B comes as a small computer motherboard with RCA video, audio, HDMI, LAN, two USB connections, and a small USB micro power connector on board - all for just $35.1

Why Facebook Is Never Safe By Adam Brereton Tags: wikileaks tor the internet technology jacob appelbaum anonymous adam brereton Want to know what a hacker, developer, activist and former Wikileaks wonk thinks about Facebook, the internet, and the future of computing? Read Adam Brereton's interview with Jacob Appelbaum

Summary:  How can we reclaim and reform America?  Here is a five-step program.  All it requires is time and effort.  This is a content-free path.  I do not know where this will take us.  Only that if widely followed America will become what we wish it to be.  No matter what the outcome, we will meet the future as citizens.  Not sheep.

Here's some bad news for those of you who like to think you can think rationally about risk. You can't. You know all those thoughtfully considered views you have about nuclear power or genetically modified food or climate change? They are really no more than a jumble of facts, and how you feel about those facts. That's right. They're just your opinions. Which is bad news, because no matter how right you feel, you might be wrong. And being wrong about risk is risky, to you AND to others.

Did you know that vital parts of the US law are secret, and you're only allowed to read them if you pay a standards body thousands of dollars for the right to find out what the law of the land is?

I didn't know whether to take my Ph.D. adviser's remark as a compliment. "You don't write like a scientist," he said, handing me back the progress report for a grant that I had written for him. In my dream world, tears would have come to his eyes, and he would have squealed, "You write like a poet!"

There is no proverbial silver bullet to creating a safer city, but analytics technology is assisting law enforcement agencies all over the world to sort through information - part of the 2.5 quintillion bytes of data we create and consume every day - to get ahead of crime. Having access to all that information is an invaluable resource for law enforcement agencies, but it can also be pretty paralyzing. After all, only a fraction of the bits and bytes can actually be relevant, right? But how do you know and, more importantly, how do you find and act on it?

(Brian- I was as part of the WBI alumni network informed of and asked to submit to the call for papers for this conference. Please review -I think your work would fit in here - let me know what you think- kdv)    Annually organized by Wuhan University of Technology (China), Yamaguchi University (Japan), the Pontifical Catholic University of Sao Paulo ( Brazil ) and the Brabant Center of Entrepreneurship (BCE),  the International Conference on Innovation and Management has proven to be a high-profile event for leading international scholars in the area of management and innovation. 

Data doesn't invade people's lives. Lack of control over how it's used does. What's really driving so-called big data isn't the volume of information. It turns out big data doesn't have to be all that big. Rather, it's about a reconsideration of the fundamental economics of analyzing data. For decades, there's been a fundamental tension between three attributes of databases. You can have the data fast; you can have it big; or you can have it varied. The catch is, you can't have all three at once. O'Reilly Radar (http://s.tt/1kHKE)