Most attempts at cloaking, no matter the slice of spectrum, usually leave clues as to what's there - even microwave cloaks can spoil the surprise through reflections. At Duke University, researchers have licked some of those past problems with the first instance of a flawless microwave cloaking scheme. By crafting a special diamond-shaped cloak where the light properties stay consistent at the corners, the school's Nathan Landy and David Smith have successfully shielded a 3-inch wide cylinder from microwave detection without a hint that something was amiss.
Engadget , Duke University creates 'perfect' one-directional microwave cloak, might lead to stealthier vehicles, Duke University creates 'perfect' one-directional microwave cloak, might lead to stealthier vehicles
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