Leonhardt's latest study, to be published tomorrow in the journal Science, is a theoretical calculation of the light-bending properties needed for a new kind of invisibility cloak.
The science behind his study isn't new. "If you look at a fish [in an aquarium] it's not where it appears to be," Leonhardt said.
That's because our brains insist on viewing light as having traveled in a straight line, when in fact the water has bent it.
Glass does the same thing, which is why telescope lenses make objects appear closer.
An invisibility cloak would simply replicate this process in a more sophisticated way.
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11.21.2008
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