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New metamaterial lens focuses radio waves

Researchers at MIT have fabricated a three-dimensional, lightweight metamaterial lens that focuses radio waves with extreme precision. The concave lens exhibits a property called negative refraction, bending electromagnetic waves - in this case, radio waves - in exactly the opposite sense from which a normal concave lens would work.

Posted: Nov 14th, 2012

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Human eye gives researchers visionary design for new, more natural lens technology

Drawing heavily upon nature for inspiration, a team of researchers has created a new artificial lens that is nearly identical to the natural lens of the human eye. This innovative lens, which is made up of thousands of nanoscale polymer layers, may one day provide a more natural performance in implantable lenses to replace damaged or diseased human eye lenses, as well as consumer vision products; it also may lead to superior ground and aerial surveillance technology.

Posted: Nov 13th, 2012

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Clear view into glass - scientists analyze the atomic structure of amorphous silica

We can look through glass, but what glass itself looks like on the inside has so far remained a mystery - at least as far as the precise position of the atoms is concerned. Scientists at the Fritz-Haber-Institute of the Max Planck Society in Berlin are now the first to have imaged the network of silicon and oxygen atoms - the main components of glass - in a silica film.

Posted: Nov 13th, 2012

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Gespeicherte Röntgenphotonen - Edelstahl könnte in Zukunft Daten speichern

Röntgenstrahlen in einer Box 'auf Eis zu legen' und später nach Belieben wieder freizusetzen, klingt nach Science Fiction. Neue Rechnungen zeigen jedoch, dass mithilfe eines Magnetfelds einzelne Röntgenquanten eingefangen und ohne Qualitätsverlust wiedergewonnen werden können. Ausserdem ist es möglich, das gespeicherte Röntgenquant zu manipulieren, insbesondere seine Phase kontrolliert zu ändern.

Posted: Nov 13th, 2012

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'Strain tuning' reveals promise in nanoscale manufacturing

Researchers at the Department of Energy's Oak Ridge National Laboratory have reported progress in fabricating advanced materials at the nanoscale. The spontaneous self-assembly of nanostructures composed of multiple elements paves the way toward materials that could improve a range of energy efficient technologies and data storage devices.

Posted: Nov 12th, 2012

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For energy-storage devices, thin is in

Cell phones as thin and flex­ible as a sheet of paper. Energy-??storing house paint. Roll-??up touch screen dis­plays. But if any of them is to work, said North­eastern Uni­ver­sity mechan­ical and indus­trial engi­neering pro­fessor Yung Joon Jung, experts also need to create a thin and flex­ible energy-??storage system. His lab has devel­oped such a system.

Posted: Nov 12th, 2012

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