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Light


— Health and Wellbeing

Discovery of body clock reset mechanism could help shift workers and jetsetters

By - March 20, 2014
The human body clock is the curse of any shift worker or traveler arriving in a new time zone. Although one's body clock can be adjusted by external cues, such as light – a factor that devices such as the Re-Timer and Litebook are designed take advantage of – the adjustment period can vary significantly for different people. Now researchers have discovered the mechanism that controls how easily such adjustments can be made. Read More
— Science

Stretchable optical circuits could find use in robot skin and more

By - February 19, 2014 2 Pictures
If flexible electronic devices are ever going to become practical for real-world use, the circuitry incorporated into them will have to be tough and resilient. We're already seeing progress in that direction, including electrical wires that can still carry a current while being stretched. However, what if the application calls for the use of fiber optics? Well, scientists from Belgium may have that covered, too. They've created optical circuits utilizing what they believe are the world's first stretchable optical interconnections. Read More
— Telecommunications

Pointy pulses improve optical fiber throughput by a factor of 10

By - December 5, 2013 2 Pictures
As the volume of data carried around the world via optical fibers continues to increase, researchers at the Swiss Federal Institute of Technology in Lausanne (EPFL) have found a way to increase data throughput capacity by ten times. Because it is based on changing the shape of light pulses to reduce the space between, the breakthrough would work on existing optical fiber infrastructure. Read More
— Science

New photonic molecules are not unlike lightsabers

By - November 26, 2013 2 Pictures
Scientists from Harvard and MIT have jointly demonstrated that, in specific conditions, photons can be made to interact with each other and form molecules. Such groupings of photons, dubbed “Photonic molecules”, constitute an entirely new form of matter, which until recently was purely theoretical. Combining the properties of light and those of solids, in terms of physics this new form of matter is not unlike a certain material that millions of Star Wars fans are already well familiar with. Lightsaber material. Read More
— Science

Oops! Invisibility cloaks actually make objects easier to see

By - November 12, 2013 4 Pictures
It's often a case of swings and roundabouts. If you save money by buying a house out of town, you spend more time and money commuting. If you really measure the momentum of an electron, you have no idea where the little guy is located. And now, according to a new analysis by a pair of University of Texas electrical engineers, the better an object is hidden by an invisibility cloak at a given wavelength of light, the easier it is to see at other wavelengths. Swings and roundabouts. Read More
— Architecture

SmartLight redirects sunlight into "light-locked" building interiors

By - November 6, 2013 2 Pictures
Researchers at the University of Cincinnati have developed technology that could help cut lighting energy costs by brightening up rooms with natural light. The SmartLight system is designed to direct sunlight into dark, dingy rooms located within the bowels of buildings without requiring the installation of new wiring, ducts, tubes or cables. It also allows excess light to be harnessed and centrally stored to provide energy for electric lighting on cloudy days. Read More
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