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Comment "Undoing the interactions"? (Score 1) 59

This phrase "undoing the interactions" is vague. It sounded like they had some kind of new principle of superposition that had been discovered. From the article:

By eliminating the interactions between the optical channels, we are able to double the distance signals can be transmitted error-free...

In reality, they are using a higher-order symbol constellation (16QAM) to carry more information per symbol, and I suspect that they combined several optical channels into a larger bandwidth to do that. I think this phrase "undoing the interactions" is more accurately "exploiting the interactions".

Submission + - One Man's Quest to Rid Wikipedia of Exactly One Grammatical Mistake (medium.com)

Submitted by Anonymous Coward
An anonymous reader writes: Fascinating profile of one particular Wikipedia editor Giraffedata (a 51-year-old software engineer named Bryan Henderson), who has spent the last seven years correcting only the incorrect use of "comprised of" on Wikipedia. Using a code to crawl for uses of "comprised of" throughout all of Wiki's articles, he'll then go in and manually corrects them (for example, using "consists of" or "composed of") and has made over 47,000 edits to date

Submission + - FDA finds herbal supplements at GNC, Walmart don't contain what they claim

Submitted by MikeChino
MikeChino writes: The New York State Attorney General's Office is demanding that GNC, Walmart, Walgreens, and Target remove store brand herbal supplements from their shelves after the pills were found to be packed with a strange array of fraudulent—and in some cases hazardous—ingredients. Popular supplements such as ginseng, valerian root, and St. John's wort sold under store brand names at the four major retailers were found to contain powdered rice, asparagus, and even houseplants, while being completely void of any of the ingredients on the label.

Submission + - DNA can be a dark matter detector!

Submitted by StartsWithABang
StartsWithABang writes: When you think of dark matter, you very likely think of a halo of diffuse, unseen mass whose gravitational influence is felt by everything within our galaxy, and every galaxy or cluster out there. But what you might not consider is that this dark matter is consistently passing through Earth and every atom-and-molecule on it. Every once in a while, a lucky (or unlucky) dark matter particle strikes, say, a DNA molecule in your body, breaking its bonds and leaving an unmistakeable, destructive signature. Creatively, a new paper has the scoop on how we might use this exact phenomenon to experimentally, directly confirm the particle nature of dark matter!

Submission + - Liability issue for drone co's using technical measures to enforce no fly zones (robohub.org)

Submitted by Anonymous Coward
An anonymous reader writes: Shortly after a Phantom drone crash-landed on the grounds of the White House, its maker, DJI, announced that it would release a mandatory firmware update that would restrict flights within 15.5 miles of downtown Washington, D.C. Drone liability expert Diana Cooper writes about the liability issues drone manufacturers may be opening themselves up to if technical measures they impose to enforce no fly zones fail.

Submission + - Chinese mobile internet users reach 557 million despite aggressive censorship (thestack.com)

Submitted by Anonymous Coward
An anonymous reader writes: According to a new report released by the Chinese government, the country now has 557 million mobile internet users, up from half a billion at the end of 2013. Following a massive adoption of smartphones from China’s leading providers Apple and Xiaomi over the last year, the country is now the world’s largest market for mobile companies. Apple has recently announced that its Chinese sales had surpassed those in the US. Despite strict censorship against foreign tech firms, overall internet usage is also on the rise with China now counting around 673 million internet users, nearly equating to half of the entire population.

Submission + - Anonymous No More: Your Coding Style Can Give You Away (itworld.com)

Submitted by itwbennett
itwbennett writes: Researchers from Drexel University, the University of Maryland, the University of Goettingen, and Princeton have developed a 'code stylometry' that uses natural language processing and machine learning to determine the authors of source code based on coding style. To test how well their code stylometry works, the researchers gathered publicly available data from Google’s Code Jam, an annual programming competition that attracts a wide range of programmers, from students to professionals to hobbyists. Looking at data from 250 coders over multiple years, averaging 630 lines of code per author their code stylometry achieved 95% accuracy in identifying the author of anonymous code. Using a dataset with fewer programmers (30) but more lines of code per person (1,900), the identification accuracy rate reached 97%.

Submission + - Architect Reveals Plans to 3D Print Entire Concrete Village (3dprint.com)

Submitted by ErnieKey
ErnieKey writes: We've seen and heard about 3d printed houses, apartments and even entire estates being erected all throughout the world. Now, one architect, who happens to be the man who brought us the first 3d printed castle, looks to create an entire village using a 3d printer. Andrey Rudenko has revealed his plans to create an entirely 3D printed village which he hopes will allow students and engineers to experiment with the capabilities that 3d printing offers the construction industry, while at the same time, create a tourist destination like none other.

Submission + - The Art of Electronics, 3rd Edition, to be released April 2015 (cambridge.org)

Submitted by coop0030
coop0030 writes: At long last, here is the thoroughly revised and updated third edition of the hugely successful Art of Electronics. It is widely accepted as the best single authoritative book on electronic circuit design. In addition to new or enhanced coverage of many topics, the Third Edition includes: 90 oscilloscope screenshots illustrating the behavior of working circuits; dozens of graphs giving highly useful measured data of the sort that's often buried or omitted in datasheets but which you need when designing circuits; 80 tables (listing some 1650 active components), enabling intelligent choice of circuit components by listing essential characteristics (both specified and measured) of available parts. The new Art of Electronics retains the feeling of informality and easy access that helped make the earlier editions so successful and popular. It is an indispensable reference and the gold standard for anyone, student or researcher, professional or amateur, who works with electronic circuits. Limor "Ladyada" Fried, "If you think electrical engineering is magical then you must pick up this tome!" Adafruit will have early copies available.

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