It may not be a cape of magical, silvery material, but it’s still an invisibility cloak. A tube made of an insulating material striped with long, thin strips of copper makes objects within it invisible to microwaves. Researchers at the University of Texas at Austin reported their cloaking chamber Jan. 25 in the New Journal of Physics. Different lab groups have been trying to cloak objects from light waves and microwaves for years. Previous efforts rendered objects invisible , by bending microwaves around the objects. Last year researchers that worked in three dimensions, concealing a bump on a reflective surface. This newest cloak makes three-dimensional objects invisible without using…

Originally posted here: Invisibility Tube Conceals 3-D Objects

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