By timothy from Slashdot's beats-the-top-stories-option-at-least department
The Atlantic reports that two years ago, Facebook briefly conducted an experiment on a subset of its users
, altering the mix of content shown to them to emphasize content sorted by tone, negative or positive, and observe the results. From the Atlantic article: For one week in January 2012, data scientists skewed what almost 700,000 Facebook users saw when they logged into its service. Some people were shown content with a preponderance of happy and positive words; some were shown content analyzed as sadder than average. And when the week was over, these manipulated users were more likely to post either especially positive or negative words themselves.
This tinkering was just revealed as part of a new study, published in the prestigious Proceedings of the National Academy of Sciences. Many previous studies have used Facebook data to examine “emotional contagion,” as this one did. This study is different because, while other studies have observed Facebook user data, this one set out to manipulate it.
At least they showed their work
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By timothy from Slashdot's splashdown-harder-on-mars department
As reported by the Associated Press, via the Washington Post, an update on the promised (and now at least mostly successful) new disc-shaped craft and parachute technology
intended for a NASA mission to Mars, though applicable to other space missions as well: A saucer-shaped NASA vehicle launched by balloon high into Earth’s atmosphere splashed down in the Pacific Ocean on Saturday, completing a successful test on Saturday of technology that could be used to land on Mars. Since the twin Viking spacecraft landed on the red planet in 1976, NASA has relied on the same parachute design to slow landers and rovers after piercing through the thin Martian atmosphere. The $150 million experimental flight tested a novel vehicle and a giant parachute designed to deliver heavier spacecraft and eventually astronauts. Despite small problems like the giant parachute not deploying fully, NASA deemed the mission a success. ... [T]he parachute unfurled — if only partially — and guided the vehicle to an ocean splashdown about three hours later. At 110 feet in diameter, the parachute is twice as big as the one that carried the 1-ton Curiosity rover through the Martian atmosphere in 2011. Coatta said engineers won’t look at the parachute problem as a failure, but as a way to learn more and apply that knowledge during future tests. ... A ship was sent to recover a “black box” designed to separate from the vehicle and float. Outfitted with a GPS beacon, the box contains the crucial flight data that scientists are eager to analyze. “That’s really the treasure trove of all the details,” Coatta said. “Pressure, temperature, force. High-definition video. All those measurements that are really key to us to understanding exactly what happens throughout this test."Read Replies (0)
By timothy from Slashdot's ink-is-kind-of-a-committment department
First time accepted submitter Peter Hudson (3717535)
writes Cory Doctorow writes on boingboing.net "BitLit works with publishers to get you free or discounted access to digital copies of books you own in print: you use the free app for Android and iOS to take a picture of the book's copyright page with your name printed in ink, and the publisher unlocks a free or discounted ebook version. None of the Big Five publishers participate as yet, but indies like O'Reilly, Berrett-Koehler, Red Wheel Weiser, Other Press, Greystone, Coach House, Triumph, Angry Robot, Chicago Review, Dundurn, and PM Press (publishers of my book The Great Big Beautiful Tomorrow) are all in."Read Replies (0)
By timothy from Slashdot's wish-I-could-make-this-year's-hope department
First time accepted submitter themusicgod1 (241799)
writes According to 2600, their distributor (Previously known as "Source Interlink", now recently renamed to "TEN: The Enthusiast Network") has decided to consolidate its resources and is keeping the money retailers paid for the last two issues of the quarterly magazine. 2600, in the meanwhile, is still busy trying to organize the upcoming HOPE X conference. However, according to the link: "In the worst case scenario, being ripped off at this level would make it almost impossible for us to continue publishing. We would have to make a lot of painful choices and cut back on things for no reason other than some outside company's mismanagement. Our readers have supported both our print and digital publications and we've been doing quite well overall."
Note: As it says at the linked explanation, 2600 is not a charity, and they're not seeking donations -- but they would like you to buy the magazine (in print or Kindle form), and to attend the upcoming HOPE X
conference. (I wish I could make this year's HOPE but can't; as conferences go, HOPE is a wildly good bargain.)Read Replies (0)