journal – Page 167

Millions of Spiders Seen In Mass Dispersal Event In Nova Scotia

Freshly Exhumed writes A bizarre and oddly beautiful display of spider webs have been woven across a large field along a walking trail in Cape Breton, Nova Scotia, Canada. “Well it’s acres and acres; it’s a sea of web, ” said Allen McCormick. Prof. Rob Bennett, an expert on spiders who works at the Royal British Columbia Museum in Victoria, BC, Canada, said tiny, sheet-web weaver spiders known as Erigoninae linyphiidae most likely left the webs. Bennett said the spiders cast a web net to catch the wind and float away in a process known as ballooning. The webs in the field are the spiders’ drag lines, left behind as they climb to the top of long grass to be whisked away by the wind. Bennett said it’s a mystery why these spiders take off en masse. Read more of this story at Slashdot.

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Millions of Spiders Seen In Mass Dispersal Event In Nova Scotia

Polyphonic Overtone Singing Explained Visually With Spectrograms

New submitter Tucano writes The overtone singer Anna-Maria Hefele can sing two notes at the same time. In her latest video, spectrograms and frequency filters are used to explain how she can produce two melody lines at the same time, and how she uses her mouth to filter the frequencies of her voice. When the voice produces a sound, many harmonics (or overtones) sound at the same time, and we normally hear this as a single tone. In overtone singing, the mouth filters out all harmonics but one, and the one that remains is amplified to become louder. This is then perceived as a separate tone, next to the fundamental. In her video, Anna-Maria shows techniques that become increasingly advanced. She shows the overtone scale (steady fundamental, moving overtone), the undertone scale (steady overtone, moving fundamental), parallel movement and opposing movement of overtone and fundamental, and even complex compositions with two separate melody lines. Read more of this story at Slashdot.

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Polyphonic Overtone Singing Explained Visually With Spectrograms

Microsoft Releases Out-of-Band Security Patch For Windows

mrspoonsi writes Microsoft has announced today that they will be pushing an out-of-band security patch today. The patch, which affects nearly all of the company’s major platforms, is rated ‘critical’ and it is recommended that you install the patch immediately. The patch is rated ‘critical’ because it allows for elevation of privileges and will require a restart. The platforms that are affected include: Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, Windows 8 and 8.1, Windows Server 2012 and Windows Server 2012 R2, Windows RT and Windows RT 8.1 and Windows 10 Technical Preview customers are affected, too. Read more of this story at Slashdot.

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Microsoft Releases Out-of-Band Security Patch For Windows

Rooftop Solar Could Reach Price Parity In the US By 2016

Lucas123 writes: The cost of rooftop solar-powered electricity will be on par with prices of coal-powered energy and other conventional sources in all 50 U.S. states in just two years, a leap from today where PV energy has price parity in only 10 states, according to Deutsche Bank’s leading solar industry analyst. The sharp decline in solar energy costs is the result of increased economies of scale leading to cheaper photovoltaic panels, new leasing models and declining installation costs, Deutsche Bank’s Vishal Shah stated in a recent report. The cost of solar-generated electricity in the top 10 states for capacity ranges from 11-15 cents per kilowatt hour (c/kWh), compared to the retail electricity price of 11-37 c/kWh. Amit Ronen, a former Congressional staffer behind legislation that created an investment tax credit for solar installations, said one of the only impediments to decreasing solar electricity prices are fees proposed by utilities on customers who install solar and take advantage of net metering, or the ability to sell excess power back to utilities. Read more of this story at Slashdot.

Major Brain Pathway Rediscovered After Century-old Confusion, Controversy

vinces99 writes A couple of years ago a scientist looking at dozens of MRI scans of human brains noticed something surprising: A large fiber pathway that seemed to be part of the network of connections that process visual information that wasn’t mentioned in any modern-day anatomy textbooks. “It was this massive bundle of fibers, visible in every brain I examined, ” said Jason Yeatman, a research scientist at the University of Washington’s Institute for Learning & Brain Sciences. “… As far as I could tell, it was absent from the literature and from all major neuroanatomy textbooks.'”With colleagues at Stanford University, Yeatman started some detective work to figure out the identity of that mysterious fiber bundle. The researchers found an early 20th century atlas that depicted the structure, now known as the vertical occipital fasciculus. But the last time that atlas had been checked out was 1912, meaning the researchers were the first to view the images in the last century. They describes the history and controversy of the elusive pathway in a paper published Nov. 17 in the Proceedings of the National Academy of Sciences. You’d think that we’d have found all the parts of the human body by now, but not necessarily. Read more of this story at Slashdot.

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Major Brain Pathway Rediscovered After Century-old Confusion, Controversy

Ubisoft Points Finger At AMD For Assassin’s Creed Unity Poor Performance

MojoKid (1002251) writes “Life is hard when you’re a AAA publisher. Last month, Ubisoft blamed weak console hardware for the troubles it had bringing Assassin’s Creed Unity up to speed, claiming that it could’ve hit 100 FPS but for weak console CPUs. Now, in the wake of the game’s disastrous launch, the company has changed tactics — suddenly, all of this is AMD’s fault. An official company forum post currently reads: “We are aware that the graphics performance of Assassin’s Creed Unity on PC may be adversely affected by certain AMD CPU and GPU configurations. This should not affect the vast majority of PC players, but rest assured that AMD and Ubisoft are continuing to work together closely to resolve the issue, and will provide more information as soon as it is available.” There are multiple problems with this assessment. First, there’s no equivalent Nvidia-centric post on the main forum, and no mention of the fact that if you own an Nvidia card of any vintage but a GTX 970 or 980, you’re going to see less-than ideal performance. According to sources, the problem with Assassin’s Creed Unity is that the game is issuing tens of thousands of draw calls — up to 50, 000 and beyond, in some cases. This is precisely the kind of operation that Mantle and DirectX 12 are designed to handle, but DirectX 11, even 11.2, isn’t capable of efficiently processing that many calls at once. It’s a fundamental limit of the API and it kicks in harshly in ways that adding more CPU cores simply can’t help with. Read more of this story at Slashdot.

Android 5.0 ‘Lollipop’ vs. iOS 8: More Similar Than Ever

Nerval’s Lobster writes With the debut of Android 5.0 (also known as Lollipop, in keeping with Google’s habit of naming each major OS upgrade after a dessert), it’s worth taking a moment to break down how the latest version of Google’s mobile operating system matches up against Apple’s iOS 8. After years of battle, the two are remarkably similar. So while nobody would ever confuse Android and iOS, both Google and Apple seem determined to go “flatter” (and more brightly colored) than ever. Whether or not you agree with their choices, they’re the cutting edge of mobile UX design. The perpetual tit-for-tat over features has reached a climax of sorts with Lollipop and iOS 8: both offer their own version of an NFC-powered e-wallet (Apple Pay vs. Google Wallet), a health app (Apple’s Health app vs. Google Fit), car-dashboard control (Android Auto vs. CarPlay), and home automation. That’s not to say that the operating systems are mirror images of one another, but in terms of aesthetics and functionality, they’ll be at near-parity for most users, albeit not for those users who enjoy customizing Android and hate Apple’s “walled garden.” Read more of this story at Slashdot.

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Android 5.0 ‘Lollipop’ vs. iOS 8: More Similar Than Ever

Tor Project Mulls How Feds Took Down Hidden Websites

HughPickens.com writes: Jeremy Kirk writes at PC World that in the aftermath of U.S. and European law enforcement shutting down more than 400 websites (including Silk Road 2.0) which used technology that hides their true IP addresses, Tor users are asking: How did they locate the hidden services? “The first and most obvious explanation is that the operators of these hidden services failed to use adequate operational security, ” writes Andrew Lewman, the Tor project’s executive director. For example, there are reports of one of the websites being infiltrated by undercover agents and one affidavit states various operational security errors.” Another explanation is exploitation of common web bugs like SQL injections or RFIs (remote file inclusions). Many of those websites were likely quickly-coded e-shops with a big attack surface. Exploitable bugs in web applications are a common problem says Lewman adding that there are also ways to link transactions and deanonymize Bitcoin clients even if they use Tor. “Maybe the seized hidden services were running Bitcoin clients themselves and were victims of similar attacks.” However the number of takedowns and the fact that Tor relays were seized could also mean that the Tor network was attacked to reveal the location of those hidden services. “Over the past few years, researchers have discovered various attacks on the Tor network. We’ve implemented some defenses against these attacks (PDF), but these defenses do not solve all known issues and there may even be attacks unknown to us.” Another possible Tor attack vector could be the Guard Discovery attack. The guard node is the only node in the whole network that knows the actual IP address of the hidden service so if the attacker manages to compromise the guard node or somehow obtain access to it, she can launch a traffic confirmation attack to learn the identity of the hidden service. “We’ve been discussing various solutions to the guard discovery attack for the past many months but it’s not an easy problem to fix properly. Help and feedback on the proposed designs is appreciated.” According to Lewman, the task of hiding the location of low-latency web services is a very hard problem and we still don’t know how to do it correctly. It seems that there are various issues that none of the current anonymous publishing designs have really solved. “In a way, it’s even surprising that hidden services have survived so far. The attention they have received is minimal compared to their social value and compared to the size and determination of their adversaries.” Read more of this story at Slashdot.

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Tor Project Mulls How Feds Took Down Hidden Websites

Mozilla Updates Firefox With Forget Button, DuckDuckGo Search, and Ads

Krystalo writes: In addition to the debut of the Firefox Developer Edition, Mozilla today announced new features for its main Firefox browser. The company is launching a new Forget button in Firefox to help keep your browsing history private, adding DuckDuckGo as a search option, and rolling out its directory tiles advertising experiment. Read more of this story at Slashdot.

Codecademy’s ReSkillUSA: Gestation Period For New Developers Is 3 Months

theodp writes: TechCrunch reports that Codecademy has teamed up with online and offline coding schools to create ReskillUSA. “3 months, ” explains ReskillUSA’s website, is “how long it takes a dedicated beginner to learn the skills to qualify for computing and web development jobs.” TechCrunch’s Anthony Ha explains, “By teaming up with other organizations, Codecademy is also hoping to convince employers that completing one of those programs is a meaningful qualification for a job, and that you don’t necessarily need a bachelor’s degree in computer science.” In his Medium post, Codecademy CEO Zach Sims calls on “students learning for the jobs of the future or employers interested in hiring a diverse and skilled workforce – to join us. The future of our economy depends on it.” Read more of this story at Slashdot.

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Codecademy’s ReSkillUSA: Gestation Period For New Developers Is 3 Months

Ken May

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