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Submission + - Mathematicians Team Up to Close the Prime Gap

Hugh Pickens DOT Com writes: On May 13, an obscure mathematician garnered worldwide attention and accolades from the mathematics community for settling a long-standing open question about prime numbers. Yitang Zhang showed that even though primes get increasingly rare as you go further out along the number line, you will never stop finding pairs of primes separated by at most 70 million. His finding was the first time anyone had managed to put a finite bound on the gaps between prime numbers, representing a major leap toward proving the centuries-old twin primes conjecture, which posits that there are infinitely many pairs of primes separated by only two (such as 11 and 13). Now Erica Klarreich reports at Quanta Magazine that there is nothing magical about 70 million — it served Zhang’s purposes and simplified his proof but other mathematicians quickly realized that it should be possible to push this separation bound quite a bit lower. By the end of May, mathematicians had uncovered simple tweaks to Zhang’s argument that brought the bound below 60 million. Then Terence Tao, a winner of the Fields Medal, mathematics’ highest honor, created a “Polymath project,” an open, online collaboration to improve the bound that attracted dozens of participants and by July 27, the team had succeeded in reducing the proven bound on prime gaps from 70 million to 4,680. Now James Maynard has upped the ante by presenting an independent proof that pushes the gap down to 600. A new Polymath project is in the planning stages, to try to combine the collaboration’s techniques with Maynard’s approach to push this bound even lower. Zhang’s work and, to a lesser degree, Maynard’s fits the archetype of the solitary mathematical genius, working for years in the proverbial garret until he is ready to dazzle the world with a great discovery. The Polymath project couldn’t be more different — fast and furious, massively collaborative, fueled by the instant gratification of setting a new world record. “It’s important to have people who are willing to work in isolation and buck the conventional wisdom,” says Tao. Polymath, by contrast, is “entirely groupthink.” Not every math problem would lend itself to such collaboration, but this one did.

Submission + - Practical Meter Proves Not All USB Power Created Equal (itworld.com)

jfruh writes: We've reached a point in our electronic lives where most of our gadgets draw power from a USB cable, and we have lots of USB ports to choose from — some of which live on other gadgets, some of which live on adapters that plug into your wall or car. But those ports supply wildly varying amounts of power, which can result in hours of difference in how long it takes your phone to charge. The Practical Meter, the product of a successful Kickstarter campaign, can help you figure out which power sources are going to juice up your gadgets the fastest.
Security

Airgap-Jumping Malware May Use Ultrasonic Networking To Communicate 265

Hugh Pickens DOT Com writes "Dan Goodwin writes at Ars Technica about a rootkit that seems straight out of a science-fiction thriller. According to security consultant Dragos Ruiu one day his MacBook Air, on which he had just installed a fresh copy of OS X, spontaneously updated the firmware that helps it boot. Stranger still, when Ruiu then tried to boot the machine off a CD ROM, it refused and he also found that the machine could delete data and undo configuration changes with no prompting. Next a computer running the Open BSD operating system also began to modify its settings and delete its data without explanation or prompting and further investigation showed that multiple variants of Windows and Linux were also affected. But the story gets stranger still. Ruiu began observing encrypted data packets being sent to and from an infected laptop that had no obvious network connection with—but was in close proximity to—another badBIOS-infected computer. The packets were transmitted even when the laptop had its Wi-Fi and Bluetooth cards removed. Ruiu also disconnected the machine's power cord so it ran only on battery to rule out the possibility it was receiving signals over the electrical connection. Even then, forensic tools showed the packets continued to flow over the airgapped machine. Then, when Ruiu removed internal speaker and microphone connected to the airgapped machine, the packets suddenly stopped. With the speakers and mic intact, Ruiu said, the isolated computer seemed to be using the high-frequency connection to maintain the integrity of the badBIOS infection as he worked to dismantle software components the malware relied on. It's too early to say with confidence that what Ruiu has been observing is a USB-transmitted rootkit that can burrow into a computer's lowest levels and use it as a jumping off point to infect a variety of operating systems with malware that can't be detected. It's even harder to know for sure that infected systems are using high-frequency sounds to communicate with isolated machines. But after almost two weeks of online discussion, no one has been able to rule out these troubling scenarios, either. 'It looks like the state of the art in intrusion stuff is a lot more advanced than we assumed it was,' says Ruiu. 'The take-away from this is a lot of our forensic procedures are weak when faced with challenges like this. A lot of companies have to take a lot more care when they use forensic data if they're faced with sophisticated attackers.'"

Submission + - Humans Born in Space May Be Doomed to Gravity Sickness (popsci.com) 1

Jeremiah Cornelius writes: From the "What's-Up-Doc?" Dept.
NASA first started sending jellyfish to space aboard the Columbia space shuttle during the early '90s to test how space flight would affect their development. Under the fantastic headline "Space-Born Jellyfish Hate Life On Earth" Popular Science notes that jellyfish babies, born in microgravity environments, "have to deal with massive vertigo on Earth after spending their first few days in space". There's a possibility for future generations of space-born human children, who might never be acclimatised to a terrestrial environment, and in fact could be incapacitated by gravity forces approaching "normal". Jellyfish tell up from down through calcium sulfate crystals that ring the bottom edge of their mushroom-like bodies. Humans sense gravity and acceleration through calcium crystals in the inner ear — similar to jellyfish — moving sensitive hair cells that signal our brains on direction of gravitation.

Submission + - the pixel painter (shockied.com)

techstar123 writes: The pixel painter is Hal Lasko, mostly known as Grandpa, a 97-year-old man who uses Microsoft Paint and Windows 95 to create stuning artwork that has been described as “a collision of pointillism and 8-Bit art.” Lasko, who is legally blind, served in WWII drafting directional and weather maps for bombing raids and later worked as a typographer for clients such as General Tire, Goodyear and The Cleveland Browns before retiring in the 1970s.
Piracy

TV Show Piracy Soars After CBS Blackout 314

TorrentFreak reports that piracy rates of the television show Under the Dome shot up by more than a third last weekend, even though official ratings dropped. What caused the increase? On Friday, three million subscribers to Time Warner's cable TV service lost access to CBS programming, the network on which Under the Dome airs. The article says this provides compelling evidence that the availability of a show is a key factor in the decision to pirate it. "To find out whether download rates in the affected markets increased, we monitored U.S. BitTorrent downloads of last week's episode as well as the one that aired this Monday following the blackout. The data from these two samples show that in Los Angeles, New York City, Boston, Chicago, Dallas, Denver, Detroit and Pittsburgh, relatively more people downloaded the latest episode, an indication that customers are turning to unauthorized channels to get the show. With hundreds of thousands of downloads Under The Dome is one of the most pirated TV-shows at the moment. Of all sampled downloaders in the U.S. 10.9% came from the blackout regions for last week's episode, and this increased to 14.6% for Monday's episode, a 34% increase. In New York City, one of the largest affected markets, the relative piracy rate more than doubled from 1.3% of all U.S. downloads last week to 3% for the episode that aired after the blackout."
Displays

Oculus Rift Raises Another $16 Million 104

Craefter writes "It seems that the Oculus Rift virtual-reality headset caught the attention of investors after its showing at E3 this year. Spark Capital and Matrix Partners were able to push $16 million at Oculus VR in the hopes that the product will live up to the hype. The HD unit looks a bit more slick than the ski-goggles-with-a-tablet-glued-to-it prototype, but the device would look even more appealing if the next-gen consoles would commit to supporting it. (We all know how well the PS3's 'wave-stick' did as an afterthought.) That said, major titles like the 9-year-old Half-Life 2 and the 6-year-old Team Fortress 2 are getting full support for the device. Hopefully some developers are looking into support for the Oculus Rift as a launch feature, rather than an addition years after the fact. IA bit like the EAX standard from Soundblaster. That worked out well too."
DRM

DRM: How Book Publishers Failed To Learn From the Music Industry 212

Presto Vivace writes "In a blog post, danps explains how the music industry initially thought that the Internet meant that people wanted their music for free. In 2003 Apple persuaded the industry to use an online music store with DRM. But DRM just does not work for consumers, so by 2011 online music stores were DRM-free. Sadly, the book industry has not learned these lessons. And there are larger lessons for the gadget industry: 'The tech industry right now is churning out lots of different devices, operating systems and form factors in an attempt to get the One True Gadget — the thing you'll take with you everywhere and use for everything. That's a lovely aspiration, but I don't see it happening. What I see instead is people wanting to only carry around one thing at a time, and rotating through several: Smart phone for everyday use, tablet for the beach, laptop for the road, etc. If you can't get the book you paid for on each of those devices, it's a pain. As a reader I want to be able to put a book on everything as soon as I buy it so I always have a local (non-Internet dependent) copy — no matter which thing I run out of the house with.'"
Bitcoin

Bitcoin's Success With Investors Alienates Earliest Adopters 158

holy_calamity writes "Digital currency Bitcoin is gaining acceptance with mainstream venture capitalists, reports Technology Review, but at the price of its famed anonymity and ability to operate without central authority. Technology investors have now ploughed millions of dollars into a handful of Bitcoin-based payments and financial companies that are careful to follow financial regulations and don't offer anonymity. That's causing tensions in the community of Bitcoin enthusiasts, some of whom feel their currency's success has involved abandoning its most important features."
Earth

Water Isolated for Over a Billion Years Found Under Ontario 207

ananyo writes "Scientists working 2.4 kilometers below Earth's surface in a Canadian mine have tapped a source of water that has remained isolated for at least a billion years. The researchers say they do not yet know whether anything has been living in it all this time, but the water contains high levels of methane and hydrogen — the right stuff to support life. Micrometer-scale pockets in minerals billions of years old can hold water that was trapped during the minerals' formation. But no source of free-flowing water passing through interconnected cracks or pores in Earth's crust has previously been shown to have stayed isolated for more than tens of millions of years (paper abstract)."
The Courts

Irish Judge Orders 'The Internet' To Delete Video 243

New submitter edanto writes "A young Irish man wrongly accused of jumping from a taxi without paying the fare has secured a judgement from an Irish court ordering the video removed from the entire Internet. Experts from Google, Youtube, Facebook, and others must tell the court in two weeks if this is technically possible. The thing is, the video is accurate, it is only a comment that wrongly identified Eoin McKeogh as the fare-jumper in the video that is inaccurate. It's not clear if the judge has made any orders about the comment."
Businesses

Two Changes To Quirky Could Change The World 103

"Quirky.com has generated a lot of buzz," writes frequent contributor Bennett Haselton, "but it's hard to see how it could ever be more than a novelty unless they change two key features of their process. Fortunately, they already have all the infrastructure in place for bringing inventions to fruition, so that with these two changes, Quirky really could deliver on their early promise to change the way products get invented." Read on for Bennett's thoughts — which seem more sensible than quirky.
Businesses

What EMC Looks For When It's Hiring 223

Yvonne Lee, Community Manager at Dice.com, writes "Because EMC has expanded through more than 70 acquisitions in eight years — it was hiring even during the recession — and because many of the acquired companies were startups, it is trying to leverage the more dynamic cultures it's inherited and make itself more nimble and innovative. People it hired 'need to be able to move fast and run,' Thus, a key to getting the company's attention is to prove you can do what you say you can. In other words, when Murray asks if you can work fast, you can't just say yes. You'll have to use your previous achievements to prove that you can."

Submission + - Adding forums to a website, what is the best way?

DustyMurray writes: "I am considering adding forums to my website, and am just getting confused by all the options. My first reaction is always DIY. You get better website integration, and it looks and feels 100% how you want it to look and feel. However looking at things like phpBB and Vanilla forums, I will be hard pressed to build a better user experience in a reasonable amount of time. Also these out-of-the-box solutions seem to be shouting "Easy to integrate with your website". So, considering this, how easy are these ready build forums really to integrate in your website. I remember one of my favorite site, going completely blabla when they started to use a generic forum instead. I even stopped going to them after a while... I definitely do not want that for my site.... So I want things like, looks and feels in integral part of the rest of my site. Want to be able to insert stuff on certain pages, so it's not either the forums, or my site... It must be a mix. And I do not want a second login system on my site. And last but not least, I definitely don't want to have this typical generic look that most forums sport, they just reek "out-of-the-box-very-vanilla".... So can all that be delivered with the out-of-the-box forums that exist today? And which one is the most flexible regarding these wishes."

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