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Earth

How To Safeguard Loose Nukes 167

Lasrick writes "The Bulletin has an interesting article about the likelihood of terrorists obtaining nuclear material. 'Since 1993, the International Atomic Energy Agency (IAEA) has logged roughly 2,000 cases of illicit or unauthorized trafficking of nuclear and radioactive material. Thirty illicit radioactive trafficking incidents were reported in the former Soviet region alone from 2009 to 2011. As Obama said in December, "Make no mistake, if [terrorists] get [nuclear material], they will use it."'"
Education

The Two Big Problems With Online College Courses 215

Hugh Pickens writes "The NY Times reports that while online college classes are already common, on the whole, the record is not encouraging because there are two big problems with online teaching. First, student attrition rates — around 90 percent for some huge online courses — appear to be a problem even in small-scale online courses when compared with traditional face-to-face classes. Second, courses delivered solely online may be fine for highly skilled, highly motivated people, but they are inappropriate for struggling students who make up a significant portion of college enrollment and who need close contact with instructors to succeed. Research has shown that community college students who enroll in online courses are significantly more likely to fail or withdraw than those in traditional classes, which means that they spend hard-earned tuition dollars and get nothing in return. Worse still, low-performing students who may be just barely hanging on in traditional classes tend to fall even further behind in online courses. 'Colleges need to improve online courses before they deploy them widely,' says the Times. 'Moreover, schools with high numbers of students needing remedial education should consider requiring at least some students to demonstrate success in traditional classes before allowing them to take online courses.' Interestingly, research found that students in hybrid classes — those that blended online instruction with a face-to-face component — performed as well academically as those in traditional classes. But hybrid courses are rare, and teaching professors how to manage them is costly and time-consuming. 'The online revolution offers intriguing opportunities for broadening access to education. But, so far, the evidence shows that poorly designed courses can seriously shortchange the most vulnerable students.'"
Math

Full Review of the Color TI-84 Plus 233

KermMartian writes "The TI-84 Plus C Silver Edition isn't the first color-screen graphing calculator, or even TI's first color calculator, but it's a refresh of a 17-year-old line that many have mocked as antiquated and overpriced. From an advanced review model, the math features look familiar, solid, and augmented with some new goodies, while programming looks about on par with its siblings. The requisite teardown uncovers the new battery, Flash, ASIC/CPU, and LCD used in the device. Although there are some qualms about its speed and very gentle hardware upgrades beyond the screen, it looks to be an indication that TI will continue this inveterate line for years to come." Lots of screenshots and pictures of the innards too.
Image

Book Review: To Save Everything, Click Here Screenshot-sm 115

Bennett Haselton writes "Evgeny Morozov's forthcoming book To Save Everything, Click Here describes how an overly helpful 'kitchen of the future' might stifle the learning process and threaten culinary innovation. True, but we could certainly do better than the current state of how-to directions (in cooking and most other subjects) that you can find today on Google. I suggest that the answer lies not in intelligent kitchen technology, but in designing an algorithm that would produce the best possible how-to directions -- where the 'best' directions are judged according to the results that are achieved by genuine beginners who attempt to follow the directions without help." Read below for the rest of Bennett's review.
Editor's Note: This article was not intended as a full review, but rather a commentary on one point in the book. The author's actual review of the book will appear in March.
Programming

Two Years of GNU Guile Scheme 2.0 107

Two years ago Guile Scheme, the official extension language of the GNU project, released version 2.0, a major upgrade to the implementation. As part of the two year anniversary, the maintainers organized a challenge to hack a small project using Guile in 30 days as part of a birthday software potluck. The two coolest dishes appear to be OpenGL support using the FFI, and XCB bindings built using the XML specification for XCB: "guile-xcb is a language implemented in the Guile VM that parses the XML files used by the xcb project to specify the X protocol and compiles them into Guile modules containing all the methods and data needed to send requests to the X server and receive replies/events back. If new X extensions are added to the xcb library, guile-xcb can compile and add them with no additional work. " See the release announcement for details on the other dishes.
Ubuntu

Ubuntu Tablets: Less Jarring Than Windows 8? 179

Following up on yesterday's news that Ubuntu for Tablets has been announced, Mark Shuttleworth answered questions about the purpose of the new version of Canonical's OS and what its intended strengths will be. He made special note of how Canonical wants the transition between desktop-Ubuntu and mobile-Ubuntu to be smooth. "When you transition from the tablet to the desktop, things don't move around. Your indicators, things like network status and time, they don't jump around on screen, they stay in the same place. That's what's really different certainly between our approach to convergence and for example Windows 8, where when you're in the desktop mode, which looks like Windows 7, and suddenly you get the new tile-based interface, it's a stark transition that can be jarring for users. In our case, you can almost think of those as gentle phase changes. When you go from phone to tablet you're stretching the device in very obvious ways. People who've used iOS on both phones and tablets would expect that. What's nice about Ubuntu is the phase change to the PC experience up from the tablet really just introduces window management, and it also introduces things like menus and dialog boxes. You aren't moving things around in dramatic ways." He added that they expect the user experiences to converge in Ubuntu 14.04. Shuttleworth also addressed the fragmentation problem faced by Android. He says manufacturers and carriers don't want to fall into that trap again, and that they've been receptive to the idea of leaving the core of Ubuntu alone while tweaking their individual services instead.
Businesses

Internet Poker Could Make a Comeback By Going Brick-and-Mortar 93

pigrabbitbear writes "It's the most modern lament in retail: Brick-and-mortar shopping has gone the way of the dodo as everyone buys their junk online. But for the once-booming online gambling market, salvation may require a reversal of that trend. For one online gaming giant, buying a casino in Atlantic City is the first step to bring Internet poker back to the U.S. In 2006, playing online poker for real cash was deemed illegal. While that didn't stop more serious players from playing, especially once the big hosts started funneling cash offshore, the FBI and DoJ's crackdown on April 15, 2011 did. The big trio of online poker – PokerStars, Full Tilt, and Absolute Poker – were all shut down, domains seized, and executives arrested on charges related to fraud, money laundering, and illegal gambling. While PokerStars and others continued operations in foreign, legal markets, the U.S. poker craze pretty much collapsed. That doesn't mean the lucrative market has gone away. Now, the Rational Group, which owns both PokerStars and Full Tilt, may be hinting at a workaround: the company is looking to buy a struggling casino in Atlantic City. Rational faces a rather large mess of regulatory hurdles, but if it does end up acquiring the Atlantic Club Casino Hotel, it would have a huge foothold in New Jersey's young market for internet gambling."

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