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Electronic Fiber Offers Benefits for Wearable Computing


Wearable computing has taken another step forward with a new fiber development coming from Huazhong University of Science and Technology in China. The fiber is order discount viagra actually a tiny capacitor stretched into a flexible thread that can be woven into cloth. This offers interesting possibilities for energy storage and for sensors that can be woven into clothing.

By creating a simple rolled capacitor and then heating and extruding it, Professor Jian Feng Gu and his team have created a soft, flexible fiber that is between 0.5 and 1 millimeter (0.02 to 0.04 inches) in diameter that can be woven into cloth yet also has 1,000 times as much capacitance as a coaxial cable.

Used in conjunction with pizeoelectric energy generators (or a portable solar panel) energy to operate electronic devices could be stored in the fibers. Sensors could be developed by combining these fibers with other inductor materials, which could lead to a variety of sensing circuits, as well.

via: MIT Technology Review


Square LEDs Project Efficient Light in Squares


Like an incandescent bulb, an ordinary LED shines light in all directions. An Austin TX company, Illumitex, is making LEDs that are much more directional. The package Illumitex is manufacturing is a square array of 16 LEDs that actually projects light in a square pattern. (There is a video clip showing this from Greentech Enterprise.) This means, for many lighting purposes - including illuminating signage, worksurface lighting, and so forth - more of the light goes where it is wanted.

While the Illumitex package only puts out 500 lumens, compared to the only for you beta blockers and levitra roughly 900 of a typical 60 watt incandescent bulb, the lighting is comparable, or even better, because the directional nature of the square LED package puts all of cialis 10 mg the light out in the direction where it is needed, instead of spreading it out in all directions. This also means that a light fixture using the Illumitex package would not need secondary reflectors or other directional lighting control, meaning that the fixture could be much smaller in size. And the Illumitex LED package only uses 6.5 watts.

via: Inhabitat


Climate Change Research Gets Its Own Supercomputer

Some of the world's most powerful supercomputers have been working on climate change research and solutions, but their time is only for you cheap fast viagra split among many of the globe's major issues.  That is changing now that one supercomputer is dedicated solely to running algorithms and calculations in the name of climate change.

Computer-maker Cray has just been awarded $47 million from the DOE to build supercomputers that will be used by the National Oceanic and Atmospheric Administration and the cialis rx Oak Ridge National Laboratory.  The first computer will be a Cray model XT6 called the Climate Modeling and Research System and will be in the lab's hands by the end of the year.

Cray will supply the lab with another, more powerful computer in 2011 called "Baker" and more high-performance computing gear in 2012.  With the budget assigned to this project, the computers will easily have a speed of a petraflop or greater.

via Earth2Tech



Finally, A No-Draw Charger

attchargerAT&T has just announced a USB-based telephone charger that does not pull electricity from the wall when it's not charging a phone. I don't know about you, but my charger is plugged in 100% of the time. That charger pulls a tiny amount of uk levitra sales energy from the wall 24 hours a day 365 days a year. Multipy that by 100 million chargers in America and there's probably at least one coal-fired power plant in America dedicated entirely to that wasted power.

AT&T's new charger, however, is a standardized USB charger that does not pull any power from the wall when there's nothing plugged into it. You wouldn't think this was a particularly complicated thing to united healthcare levitra do (especially since chargers routinely cost thirty FREAKING dollars.) But high-markup chargers are a big part of cell phone company's profit models, so they aren't generally interested in pulling R&D dollars from that big tasty pie.

But it works, and it will charge a variety of devices, even non-AT&T devices. It's great news for us all, and at the same cost as a regular (dramatically overpriced) cell phone charger.

Let's hope the technology makes its way into other vampire power culprits soon. Read the full press release from ATT here.


Save Your Battery: Unplug Your Laptop


A recent article from Lawrence Berkely Laboratory suggests that readers should 'Pull the plug. Your battery will thank you.' Researcher Venkat Srinivasan writes about batteries and battery chemistry rather specifically, but without becoming overwhelmingly technical. He explains how batteries begin to fail, and suggests keeping your computer unplugged as a way of extending the life of your battery. I pulled the plug on mine as soon as I read the article, and I'm now writing this on battery power.

On the other hand, if you charge the battery and then pull the plug (so to speak), the battery discharges some, the voltage drops, and these reactions become less of a problem and i recommend lowest price for viagra your battery life goes up. So the best things you can do is to charge the laptop (or cell phone, camera etc.) and once its charged, pull the plug. Your battery will thank you for it.

This also has relevance for plug-in hybrid and electric vehicle owners, whose batteries have the same characteristics. A car sitting in a garage for hours, full charged, is going to be slowly deteriorating the cialis professional cheap battery. Manufacturers may already be incorporating measures into battery packs to address this problem, but this highlights just one of the many potential issues battery makers need to address in order to enter site buy cialis keep portable electrical devices functioning.

This week in batteries may not be on everyone's RSS feed right away. But engineers for computer companies, electric vehicle manufacturers, cell phone and other portable device makers should be following him. While the articles run to the technical, the information is accessible for all kinds of battery geeks.

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