1/26/2012

Novel Material Cloaks 3D Objects:Update

Scientists in the United States reported a further step towards a celebrated "invisibility cloak" by masking a large, free-standing object in three dimensions.
The lab work is the latest advance in a scientific frontier that uses novel materials to manipulate light, a trick that is of huge interest to the military in particular.
Reporting in the New Journal of Physics, researchers at the University of Texas in Austin cloaked an 18-centimeter (7.2-inch) cylindrical tube from light in the microwave part of the energy spectrum.
Those hoping for a Harry Potter-style touch of wizardry would be disappointed. To the human eye, which can only perceive light in higher frequencies, no invisibility would have been seen.

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