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Submission + - Tiny glass pyramids used to create self-cooling solar cells (geek.com)

An anonymous reader writes: Solar panels need to be placed in direct sunlight in order to function, but that means they get hot, become less efficient, and age quickly. For every 1 degree Celsius the temperature increases, solar cell efficiency decreases by 0.5%. So at a typical peak temperature of 55 degrees a 30% efficient solar panel is only converting around 21% of the solar energy.

What we need is passive cooling, and a team at Standford Uni has solved the problem using tiny glass pyramids to manipulate the properties of light.

Submission + - Developing Desktop Applications with PHP using wxPHP

An anonymous reader writes: Unlike other general purpose scripting languages like Python, Perl or Lua, PHP usage has been mostly limited to web applications. wxPHP is a wrapper of wxWidigets that lets you develop cross-platform desktop applications using PHP, which revives a usage scenario for the language. The authors of the project believe that developing with wxPHP leads to decreased development time and easier interpolation with web applications. In contrast to its older brother PHP-GTK, wxPHP applications look native in all platforms, the extension is easier to build and more up to date. Binary builds for various platforms that use latest PHP versions are available, also the GUI designer wxFormBuilder has PHP support.

Submission + - Better Living Through Data (ifweassume.com)

jradavenport writes: Using 2 years of continuous (every 1 minute) monitoring of my MacBook Air battery usage, I have been able to study my own computer use patterns in amazing detail. This dataset includes 293k measurements, or more than 204 days of use over 2 years. I use the laptop more than 50hours per week on average, and my most productive day is Tuesday. Changes in my work/life balance have begun to appear over the 2 year span, and I am curious if such data can help inform how much computer use is healthy/effective.

Submission + - It's now possible to print computer memory on paper (citeworld.com)

Caleb Garling writes: Paper is cheap, flexible, and widespread, making it a good candidate as a substrate, but one of the issues with printing conductive materials to paper is one of the reasons paper works so well for ink: absorption. Being porous and uneven is an unwanted quality when trying to lay down the very precise structures necessary for electronics.

To get around this, principal researcher Der-Hsien Lien and team first coated the paper in a layer of carbon. Their aim was to make a type of resistive random access memory (RRAM), where a voltage is applied across a layer of insulator via an electrode. Each "bit" on the paper would be an insulator sandwiched by two electrodes with a state of 1 or 0.

Submission + - Silicon Valley has created an imaginary staffing shortage (usatoday.com)

walterbyrd writes: As longtime researchers of the STEM workforce and immigration who have separately done in-depth analyses on these issues, and having no self-interest in the outcomes of the legislative debate, we feel compelled to report that none of us has been able to find any credible evidence to support the IT industry's assertions of labor shortages.

Comment Re:FUD filled.... (Score 1) 212

The glow plug is not even close to similar to a spark plug as it does not go inside the compression chamber and it is not absolutely required for the facilitation of ignition; even on a stone cold engine in Canada in the depths of winter (provided there's at least a block warmer of some kind). It's a wire that preheats the fuel in the injector to ensure that it's of a temperature that when it is injected into the cylinder that the pressure and heat within the compression chamber will cause the ignition. Once an engine is to operating temp, the glow plug isn't needed any longer as the engine itself is generating the heat necessary. Before glow plugs, engines were warmed up by building a fire underneath them to bake them to a point where the internal temperature would be at a level to self ignite. The only thing glow plugs did was to give the process more efficiency and even modern cars with Diesel engines can still be warmed up by baking... provided their bodies are designed to allow for the open flame underneath them without burning parts critical to the other operations of the vehicle.

Comment Re:MechWarrior (Score 1) 701

I built an Android app that all it does is play this sound once after the phone booted fully into the home screen. MechWarrior 2's "Incoming Message" is played as my sms notification through the normal phone settings.

Comment Re:Confused. (Score 2) 752

Karma to burn so at the risk of being offtopic to the article, but ontopic to you: We're antiquated relics from a time when the slogan still applied. The beginning of the end can be traced back to the fall of the WTC buildings, but the /. editors still tried their hardest to keep stories to the theme of the slogan for years after. However, ever since that event, Slashdot has slowly moved away from focusing solely on stories that fit the slogan and bringing in stories that have a possible historic and/or "climate" (whether this be political or otherwise) changing significance. The acquisition of /. by Dice just sped up this process. While it is still a large focus of the site you'll probably notice that the slogan "News for Nerds, Stuff that Matters" has been removed from the main page*.

*Note: I just checked Beta, and noticed that the "News for Nerds" part of the slogan is part of the logo there... but who visits beta anyway?

Comment Re:No exhaustive.. (Score 1) 285

Actually, it's not really proving his point. It's not even part of his point. The question he asked was "do we know who came up with the concept for Donkey Kong?" The answer is simply "Yes we do. It's this guy." The fact that he couldn't bring his vision to fruition alone does not negate the fact that Donkey Kong as a concept was dreamed up solely by Miyamoto. It's actually very rare for a programmer to be the visionary of a project, even back in the 8-bit age. Now, a question that would be better aimed at his point: "Do we know the names of all the programmers who wrote the code for Donkey Kong?" And I would have to say that off the top of my head: No, I don't. The only ones I know of who directly worked on DK are Miyamoto, Yokoi, and Kaneoka.

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