Ant= icloak gives vision to the invisible t
Made Popular Sep 4 2008
United States :
heoretical physicists think they might have the makings of the world’s first ‘anti-invisibility cloak’, a device which, when layered beneath an invisibility cloak, renders any object within visible again.
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”The cloak needs to be anisotropic, heterogeneous and have a negative index of refraction,” he says. In other words, it must treat light differently depending on the direction it is travelling in and which part of the anti-cloak it hits, as well as bending it the ”wrong” way compared to all natural materials.