Two separate teams of researchers, one British and one American, have reported advances in what used to be pure fantasy - a shield, or perhaps even a cloak (albeit a very cumbersome one), that could make a person very difficult to see. Strange, man-made substances called "metamaterials" might be able to "guide" visible light around the periphery of an object instead of reflecting the light to an observer.
COMMENT: Some things, as Laurence Krauss has discused in his books on Star Trek, may be forever out of reach due to the laws of physics. This story is a good reminder, though, of how the human mind can conceive ways to work with and around those laws to create what used to be strictly science fiction - without offending Einstein or Newton.
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