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+ - New Wind Turbine Has No Blades

Submitted by HughPickens.com
HughPickens.com writes: The Guardian reports that Vortex Bladeless has developed a new bladeless wind turbine that promises to be more efficient, less visually intrusive, and safer for birdlife than conventional turbines. Using the principle of natural frequency and vorticity, the turbine oscillates in swirling air caused by the wind bypassing the mast, and then builds exponentially as it reaches the structure’s natural resonance. It’s a powerful effect that famously caused the collapse of the Tacoma Narrows Bridge in 1940, footage of which inspired David Yáñez to try to build a structure to harness this energy rather than prevent it. The turbine “floats” on magnets, which as well as significantly amplifying the oscillation, also eliminates any friction and the need for expensive lubricating oils or mechanical parts. “Wind turbines now are too noisy for people’s backyard,” says David Suriol. “We want to bring wind power generation to people’s houses like solar power.”

On the minus side the oscillating turbine design will sweep a smaller area and have a lower conversion efficiency. “The best wind turbine will collect around 50% of energy from the wind,” says Suriol. “We are close to 40% with bladeless turbines in our wind tunnel laboratory.” To offset this disadvantage, "you can put four, five or six 4kW turbines in the space of one conventional turbine, which need 5 meter diameter space around them,” he says. In fact, wind tunnel tests have shown they perform even better placed closer together as they benefit from the vortices each of them creates.

+ - First Ultraviolet Quantum Dots Shine In An LED->

Submitted by ckwu
ckwu writes: Researchers in South Korea have made the first quantum dots that emit ultraviolet light and used them to make a flexible, light-emitting diode. Until now, no one had succeeded in making quantum dots that emit wavelengths shorter than about 400 nm, which marks the high end of the UV spectrum. To get quantum dots that emit UV, the researchers figured out how make them with light-emitting cores smaller than 3 nm in diameter. They did it by coating a light-emitting cadmium zinc selenide nanoparticle with a zinc sulfide shell, which caused the core to shrink to 2.5 nm. The quantum dots give off true UV light, at 377 nm. An LED made with the quantum dots could illuminate the anticounterfeiting marks on a paper bill. If their lifetimes can be improved, these potentially low-cost UV LEDs could find uses in counterfeit currency detection, water sterilization, and industrial applications.
Link to Original Source

+ - SourceForge MITM Projects-> 2

Submitted by lister king of smeg
lister king of smeg writes: What happened?

SourceForge, once a trustworthy source code hosting site, started to place misleading ads (like fake download buttons) a few years ago. They are also bundling third-party adware/malware directly with their Windows installer.

Some project managers decided to leave SourceForge – partly because of this, partly just because there are better options today. SF staff hijacked some of these abandoned accounts, partly to bundle the crapware with their installers. It has become just another sleazy garbage site with downloads of fake antivirus programs and such.

How can I help?

If you agree that SourceForge is in fact distributing malicious software under the guise of open source projects, report them to google. Ideally this will help remove them from search results, prevent others from suffering their malware and provide them with incentive to change their behavior.

As this story has been submitted several times in the past several days, by various submitter and is going around various other tech forums( https://news.ycombinator.com/i... , https://soylentnews.org/articl... , https://www.reddit.com/r/progr... ,) this submitter wonders has our shared "glorious Dice Corporate overloads" been shooting this story down?
Link to Original Source

+ - SourceForge assumes ownership of GIMP For Win, wraps installer in adware->

Submitted by Anonymous Coward
An anonymous reader writes: It appears that SourceForge is assuming control of all projects that appear "abandoned." In a blog update on their site, they responded saying in part "There has recently been some report that the GIMP-Win project on SourceForge has been hijacked; this project was actually abandoned over 18 months ago, and SourceForge has stepped-in to keep this project current. "

SourceForge is now offering "to establish a program to enable users and developers to help us remove misleading and confusing ads."

Link to Original Source

Comment: Re:As much as possible... or none at all (Score 1) 335

by Rob Riggs (#49784355) Attached to: How Much C++ Should You Know For an Entry-Level C++ Job?
An entry-level programmer still needs to know enough about the language to get in the door: how to construct a class, class visibility, exceptions, a bit of the STL. But to me it is far more important that they know data structures, algorithms and their complexity, parallelism, OO-programming principles, functional programming principles, and show a passion for their profession. I don't expect an entry-level developer to know much about software life-cycle management, source control, unit testing, package management, C++ meta-programming, or anything of that nature. I expect them to maintain other people's code and learn from what has already been written, and from that learn all the things about software engineering that most universities completely ignore.
AI

Microsoft Bringing Cortana To iOS, Android 65

Posted by Soulskill
from the new-ways-for-your-phone-to-yell-at-you dept.
An anonymous reader writes: While many big tech companies have their own personal assistant software these days, few of them are available on a broad variety of devices. Microsoft has now announced that it's becoming one of those few: Cortana will be available for iOS and Android devices later this year. It's part of an initiative by the company to ensure Windows 10 plays well with all sorts of devices, even phones made by the other major manufacturers. Microsoft said, "Regardless of the operating systems you choose across your devices – everything important to you should roam across the products you already own – including your phone." This led them to develop a "Phone Companion app," built into Windows 10, that's designed to help sync a user's PC with his phone.

What the world *really* needs is a good Automatic Bicycle Sharpener.

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