"Could the Internet mean the end of snow days? Some schools think so, and they are experimenting with ways for students to do lessons online during bad weather, potentially allowing classes to go on during even the worst blizzard."

"Intel, speaking out of turn and damaging its intimate relationship with Microsoft, has revealed that legacy x86-compiled software will not work on the ARM version of Windows 8. Microsoft has promised that the Office suite will be available on Windows 8 ARM, but beyond that, nothing. While this means there won't be many compatible apps at launch, it also means this will be the first full-bodied version of Windows that won't (initially) be susceptible to viruses and malware..."

"There's a popular discussion happening at the Bitcoin forums about a new browser-based bitcoin miner released today. This lets people mine for bitcoin straight from the browser. There's talk of making an embeddable version. How long until websites start using CPU power from their users to create Bitcoin for their owners?" As Bitcoin gets more attention, I foresee malware with payloads promising to do the same thing.

"The folks over at Mac Mini Vault jailbroke an Apple TV, stuck lighttpd on it, and connected it up to the internet in the name of fun hacking. 'This project was a fun way to see how far we could take the A4 powered Apple TV. The Apple TV is running iOS 4.2.2 (obviously jailbroken) with lighttpd for a web server.'"

"A team of computer scientists at two University of California campuses has been looking deeply into the nature of spam, and they think found a 'choke point' [PDF] that could greatly reduce the flow of spam. It turned out that 95 percent of the credit card transactions for the spam-advertised drugs and herbal remedies they bought were handled by just three financial companies — one based in Azerbaijan, one in Denmark and one in Nevis, in the West Indies. If a handful of companies like these refused to authorize online credit card payments to the merchants, 'you'd cut off the money that supports the entire spam enterprise,' said one of the scientists." Frequent Slashdot contributor (and author of a book on Digital Cash) Peter Wayner wonders if "the way to get a business shut down is to send out a couple billion spam messages in its name."

"A UK academic has blamed unnecessarily complicated user interfaces for putting older people off today's technology. Mike Bradley, senior lecturer in product design and engineering at Middlesex University, claims efforts to be more inclusive are being undermined by software and hardware design that is exclusively targeted at younger users. He cites the example of the seemingly simple iPhone alarm clock. 'They're faced with a screen with a clock face and a plus sign icon, and they couldn't understand that you were "adding an alarm," so they didn't click the plus sign to get through to that menu. Pressing the clock image takes you through to choices about how the clock is displayed, and it's not easy to get back again.'"

"What would be your first guess about what an app store sells? Don't be fooled, Apple warns, the phrase 'app store' is not generic and can only be used to describe Cupertino's... um, app store? 'Apple denies that, based on their common meaning, the words "app store" together denote a store for apps,' Apple said in a Thursday filing with a California district court. All this notwithstanding that Jobs himself used the phrase generically while referring to Android app stores. We've previously discussed this ongoing legal battle."

"Drawing on cognitive science, an increasing number of game theorists and designers say that our growing love of video games has important things to tell us about our intrinsic desires and motivations. Central to it all is a simple theory – that games are fun because they teach us interesting things and they do it in a way that our brains prefer – through systems and puzzles. 'With games, learning is the drug,' writes Raph Koster, the designer of seminal multiplayer fantasy games such as Ultima Online and Star Wars Galaxies. 'In game theory, this is often spoken of as the "magic circle": you enter into a realm where the rules of the real world don't apply – and typically being judged on success and failure is part of the real world. People need to feel free to try things and to learn without being judged or penalised.' Another important element is autonomy as games tap into our need to have control.

Finally another important game design facet is 'disproportionate feedback,' in which players are hugely rewarded for achieving very simple tasks. In highly successful shooters such as Call of Duty and Bulletstorm, when an enemy is shot, they don't just collapse to the floor, they explode into chunks. 'You're good, you're a success – you're powerful,' writes Stuart. 'Disproportionate feedback is an endorphin come-on.'"

"Smartphone security recommendations seem to boil down to Windows-like practices: install an antivirus, run updates, and don't execute apps from untrusted sources. On my own computers, running Linux, I choose to only install (signed) packages from the distribution's or well-known repositories, or programs I can check and compile myself, or run them as a dedicated user — and I don't bother with an antivirus. What rules should I adopt on my soon-to-be-bought Android device? Can I use it purely with open-source apps and still make the most of it? Are Android's fine-grained permissions (accessing the network, contacts...) reliable? Can apps be trusted not to scan your files and keyboard for passwords and emails? What precautions do security-conscious Slashdotters take to keep control of their phones?"

The Installer writes with news of yesterday's stock offering from LinkedIn, which shocked investors by closing at more than double the initial price. "Buyers crowded the floor of the New York Stock Exchange, and financial news networks flashed LinkedIn's stock price urgently all day. By the closing bell, the company had a market value of $9 billion, the highest for any Internet company since Google had its initial public offering seven years ago. Millionaires and even one billionaire were made, at least on paper. The stock, issued at $45, went as high as $122.70 just before noon and closed at $94.25 on a trading volume of 30 million shares." That price values the company at over 30 times its 2010 revenue, leading to speculation that this is either evidence of the second dotcom bubble (a possibility we discussed in February) or a "watershed moment for social media." Many experts are questioning the value of LinkedIn, while others are claiming intentional market manipulation.

"Throughout the past few years, Google's newspaper-scanning project has digitized more than 60 million pages from newspapers spanning 250 years, including such gems as the moon landing. But according to the Boston Phoenix, this ambitious effort is slated to soon be axed in favor of Google One Pass, a platform for publishers to monetize content from their own sites."

"Remember the Sandvine report from earlier this week that said Netflix gobbles up 30% of Internet traffic during peak hours? It needs clarification on a couple of important points, says blogger Kevin Fogarty. First, yes, Netflix traffic spikes during prime time, but only across the last mile. Second, ISPs underestimate what a 'normal' level of Internet use really is. 'When AT&T announced its data caps – 150GB per month for DSL users and 250GB for broadband – it called the data levels generous and said limits would only affect 2 percent of its customers. It turns out Netflix users take up an average of 40GB per month just from streaming media, according to a different Sandvine report (PDF).'"

"Apple, Google and employers are already contravening new European Union rules that will require companies to get explicit permission from users before any geo-location data can be used to track them, whether for the purposes of targeted advertising or monitoring employee behavior. This could be the start of the next big privacy argument. The hopes of companies planning to use geo-location data to push products and services to mobile device users have taken a beating in the European Union, following a pronouncement from the European Data Protection Supervisor, Peter Hustinx."

"Verizon will be eliminating its unlimited smartphone data plan this summer. No longer will one be able to pay $30 a month to have unlimited data. This move is designed to 'force heavy data users to pay more for mobile data.'"

Long-awaited data from an international study have shown no evidence of increased risk of brain tumors associated with mobile phones, except in people who have the most exposure. But design flaws of the Interphone study, which is partly industry funded, suggest that the latest results cannot be taken to mean that cell phones and brain cancer are unrelated, critics say. "I'm not telling people to stop using the phone. I'm saying that I can't tell you if cell phones are dangerous, but I can tell you that I'm not sure that they are safe," said Dr. Devra Davis, professor of preventive medicine at Mount Sinai Medical Center in New York. The study itself, to be published Tuesday in the International Journal of Epidemiology, acknowledged that the findings were not definitive and called for more research. But Daniel Krewski, professor of epidemiology at the University of Ottawa in Ontario and one of the Interphone collaborators, said the study went to "great lengths to make sure that the results were scientifically sound."

At the highest exposure levels -- using a mobile phone half an hour a day over a 10-year period -- the study found a 40 percent increased risk of glioma brain tumors. With adjustments for statistical biases, that turned into 80 percent. But Krewski and colleagues say that there is not enough evidence to show a causal connection, and the group of participants using their phones this much was relatively small.

Do cell phones cause brain cancer? It may be too early to say for sure. The latency period or time between exposure and recognition of a tumor is around 20 years, sometimes longer. And, cell phone use in the U.S. has been popular for only  around 15 years. Back in 1996, there were 34 million cell phone users. Today there are 9-10 times as many. Keeping that in mind, it is worth taking a more detailed look at the results of Interphone, a multinational study designed to try to  answer this question. The headline from this study was there was little or no evidence to show an association between cell phones and cancer. Though, if you went to the appendix of the study, which interestingly was available only online, you found something unsettling. The data showed people who used a cell phone 10 years or more doubled the risk of developing a glioma, a type of brain tumor. And, across the board – most of the studies that have shown an increased risk are from Scandinavia, a place where cell phones have been popular since the early 1990s. For these reasons, the whole issue of latency could become increasingly important.

Cell phones use non-ionizing radiation, which is very different from the ionizing radiation of X-rays, which everyone agrees are harmful. Non-ionizing radiation won’t strip electrons or bust up DNA. It's more like very low power microwaves. Short term, these microwaves are likely harmless, but long term could be a different story. Anyway, who likes the idea of a microwave, even a low-powered one, next to their head all day?

And, what about kids?

LinkedIn, a trailblazer in the online networking craze, went public with a roaring stock offering. Within minutes, shares were trading at twice the value set by the company. Buyers crowded the floor of the New York Stock Exchange, and financial news networks flashed LinkedIn's stock price urgently all day. By the closing bell, the company had a market value of $9 billion, the highest for any Internet company since Google had its initial public offering seven years ago. Millionaires and even one billionaire were made, at least on paper. The stock, issued at $45, went as high as $122.70 just before noon and closed at $94.25 on a trading volume of 30 million shares. All this for a company that skeptics say amounts to an online Rolodex, a place on the Internet for professionals to post resumes and connect with one another and potential employers. It was enough to remind some people on Wall Street of the heady late 1990s and the debuts of companies like Netscape Communications — and, more infamously, long-forgotten names like Pets.com and Webvan. Investors wondered whether LinkedIn will be a precursor to another financial frenzy in Silicon Valley

Sales of digital e-books have outstripped real books for the first time, according to Amazon.Four years after the launch of electronic novels, the firm announced it has sold 105 e-books for every 100 printed books over the past six weeks.While e-book sales have previously outsold hardback books, never before have they exceeded sales of all books, in both hardback and paperback forms.

For Apple fans, the brand triggers a reaction in the brain that's not unlike that of religious devotees, according to a BBC documentary series that cites neurological research. The neuroscientists ran a magnetic resonance imaging (MRI) test on an Apple fanatic and discovered that images of the technology company's gadgets lit up the same parts of the brain as images of a deity do for religious people, the report says. The first episode of the documentary shows Apple employees "whipped up into some sort of crazy, evangelical frenzy" at the recent opening of an Apple store in London. Observers and Apple critics have long accused fans of the tech company of taking their infatuation to an extreme. People have gone to great lengths to prove their love of Apple with tattoos, bumper stickers and home shrines to outmoded Mac computers. Apple's cult-like following was highlighted in a 2009 documentary called "Macheads." A blog, aptly titled Cult of Mac, wrote on Thursday about Oakland, California, resident Gary Allen's cross-country pilgrimage to Apple's first store in Virginia to celebrate the retail chain's 10th anniversary this week.

pple fans, the brand triggers a reaction in the brain that's not unlike

Adding realism to AR by using real world surrounding information (HDRs panoramas, IBLs) is a thing we all want to have sooner than later! We have seen a cool demo of Suomi’s VTT on this, where they fake the surrounding information using the background and scanning a ping pong ball for lighting information. Now we have another candidate porting a similar approach to our beloved mobile devices. The paper of the University of Münster (Germany) has been published already in 2004 (titled “Virtual Reflections for Augmented Reality Environments”), but now it’s time to hit the mobile world with it!

If you are interested in some tech talk, please read on! :-) Their approach can create CubeMaps for all reflective or lighting purposes in real-time using only the information from the background video frame: they not only flip and stitch the frame six times and mirrored together, but do a pretty smart estimation, that yields in plausible neat-looking reflections (although obviously fake): they project six regions of the background frame (see below) onto the new six sides of a Cube. The general idea is to have reasonable regions to map from

This way they get to simulate glossy and diffuse reflections already. Lighting/shadow influence will probably be the next step, since the CubeMap is already there…