'Invisibility Cloak' Could Become Reality

Imagine throwing a cloak over your head and becoming invisible to the outside world. That possibility, once the stuff of science fiction and fantasy, could soon become a reality. An invisibility cloak, or a cloth that renders its wearer completely invisible to others, is not a new concept. It's been a popular device for generations of novelists, and scientists have been working on the idea for years. Researchers at the University of California at Berkley may have come the closest...

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