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(PhysOrg.com) -- For the first time, researchers have demonstrated that an LED can emit more optical power than the electrical power it consumes. Although scientifically intriguing, the results won’t immediately result in ultra-efficient commercial LEDs since the demonstration works only for LEDs with very low input power that produce very small amounts of light.

%excerpt% Read the original post: Taking on Tesla: Pulse Motors

Silicon is a unique material that has revolutionized electronics; it enables engineers to put millions of electrical devices onto a single chip. Replacing the electrical currents in this technology with beams of light could enable even faster information processing. Qian Wang at the A*STAR Data Storage Institute and co-workers1 have now designed a crucial component for such optical chips — a connector that links the silicon chip to an optical fiber.

New evidence this week supports a theory developed five years ago at Rice University to explain the electrical properties of several classes of materials -- including unconventional superconductors -- that have long vexed physicists.

A research group at the NIMS International Center for Materials Nanoarchitectonics (MANA) has proved that the electrical resistance of a metal single atomic layer on a silicon surface becomes zero by superconductivity.

Millions of pacemakers have been successfully implanted in the past half century to regulate erratic heartbeats , but the electrical leads, which connect the device to the heart, complicate the surgery and increase infection risks. The heart's continuous and vigorous beating also creates strain on the leads and can damage them over time. [More]

By Quirin Schiermeier of Nature magazine Climate scientists warn that critical gaps in climate data could open up after the current generation of Earth-observation satellites comes to the end of its life, with the next generation nowhere near ready to take over. The problem is exacerbated by the lack of an adequate replacement for a pair of Earth-observation satellites, the Orbiting Carbon Observatory and Glory, which failed on launch in the past two years. Earth-observation programs will fail to provide the data continuity required for climate science unless they are more adequately managed and supported, Kevin Trenberth, a senior researcher at the U.S

These new tech tools can improve the flow of your business operations, help you attract new customers or develop new loyalty programs, and directly impact your monthly sales. You might notice something different about the sales receipt at Burgerville, a chain of 39 burger shops in the Portland area. Using a technology developed by SmartReceipt (www.receipt.com), the chain shows customized nutrition information about your specific order, news and trivia, and marketing information.

During 2011’s deadly onslaught of earthquakes, floods and tornadoes, countless buildings had to be evacuated while workers checked to make sure they were stable. The events served as a reminder that most structures are still inspected by a decidedly low-tech method: the naked eye.

By 2015, $144 million will be spent annually on cybersecurity tools for electric vehicles. Hacker attacks on electric vehicles couldn't just spoof credit card numbers or power a car for free--they could also potentially take down the grid. Electric cars can go fast, have increasingly impressive battery lives, help drivers save money, and help wean economies off of oil.

In places where there is no grid, houses can be dark.

Nanotechnology makes the seemingly impossible true: Trapping the sun's heat for release later, whenever and wherever you need it. MIT's researchers have discovered a way to blend carbon nanotubes , current media darlings of the chemistry world, with an existing material used for storing heat energy

Mimicking the highly efficient power-generation process of photosynthesis, an artificial leaf could change how the world gets energy. And new developments at MIT mean it could happen in the next few years. Earlier this year, MIT professor Daniel Nocera made a discovery : By dipping a cobalt-and phosphate-coated artificial silicon leaf into a jar of water, he could effectively mimic photosynthesis and create power at an efficiency greater than today's solar panels

A new generation of high speed, silicon-based information technology has been brought a step closer by researchers in the Department of Electronic and Electrical Engineering at UCL and the London Centre for Nanotechnology.

Electricity controls much of the human body: consider the electrical firing of neurons and the current transmitted by the heart. Yet historically the electrodes that have been used in medicine to monitor and regulate essential activity have been biologically incompatible because they are stiff, big and water-sensitive. Now scientists are setting new standards with their designs for flexible, stretchable and waterproof circuits and electrodes that mimic the properties of human tissues