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Databases

Digg Says Yes To NoSQL Cassandra DB, Bye To MySQL 271

Posted by timothy from the can-you-trust-a-db-by-that-name? dept.
donadony writes "After twitter, now it's Digg who's decided to replace MySQL and most of their infrastructure components and move away from LAMP to another architecture called NoSQL that is based in Cassandra, an open source project that develops a highly scalable second-generation distributed database. Cassandra was open sourced by Facebook in 2008 and is licensed under the Apache License. The reason for this move, as explained by Digg, is the increasing difficulty of building a high-performance, write-intensive application on a data set that is growing quickly, with no end in sight. This growth has forced them into horizontal and vertical partitioning strategies that have eliminated most of the value of a relational database, while still incurring all the overhead."
Input Devices

Sony's PS3 Motion Controller Gets Demoed and Named 116

Posted by CmdrTaco from the pull-the-strings dept.
itwbennett writes "In a 45-minute press conference at the Game Developers Conference in San Francisco, Sony announced its motion controller, officially named the Playstation Move. The Move consists of the Eye Toy (a camera pointed at the player) and a wand-like controller with a lighted ball at the end and a range of buttons on the shaft, writes blogger Peter Smith. 'Alternatively games can use two of the wands, or one wand and one "sub-controller" that has an analog stick (the camera is always required),' says Smith. 'If this is sounding very much like the Wii's Remote and Nunchuk well, you aren't far off (though at least there's no cable between the two parts to smack you in the face when things get heated).' Here are Smith's thoughts on the demo: 'All in all, the demos seemed OK, but I, at least, wasn't really blown away by any of them. That said, it's always hard to tell how well these systems work without actually trying them for yourself. You need to feel the connection (or lack thereof) between what your hands are doing and what's going on on-screen in order to be sure. For example, in the boxing demo the player did a quick spin move that led to a roundhouse punch. It's hard to say if his motion triggered a pre-set action (a 'combo') or if the system was able to track the controller that accurately, and was able to 'connect the dots' from when his body briefly occluded the wand to when it reappeared.'"
Image

Facebook Master Password Was "Chuck Norris" 319

Posted by samzenpus from the ad-nauseum-roundhouse dept.
I Don't Believe in Imaginary Property writes "A Facebook employee has given a tell-all interview with some very interesting things about Facebook's internals. Especially interesting are all the things relating to Facebook privacy. Basically, you don't have any. Nearly everything you've ever done on the site is recorded into a database. While they fire employees for snooping, more than a few have done it. There's an internal system to let them log into anyone's profile, though they have to be able to defend their reason for doing so. And they used to have a master password that could log into any Facebook profile: 'Chuck Norris.' Bruce Schneier might be jealous of that one."
Movies

Submission + - Bad Movie Physics Hurt Scientific Understanding (physorg.com)

Submitted by
eldavojohn
eldavojohn writes: "A paper published by UCF researchers claims that bad movie physics hurt students' understanding of real world physics. From the article, "Some people really do believe a bus traveling 70 mph can clear a 50-foot gap in a freeway, as depicted in the movie Speed." The professors published this paper out of fear that society will pay the price. One of the authors commented on advancements in the past years "All the luxuries we have today, the modern conveniences, are a result of the science research that went on in the '60s during the space race. It didn't just happen. It took people doing hard science to do it." I commented on the physics of the most recent Die Hard having problems detracting from my enjoyment of the movie but is it really the root of a growing problem of poor science & math among students?"

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