One of the problems with the cloaking devices developed to date — and it’s a big one — is that they really only work if both the viewer and whatever is being cloaked remain still. This, of course, is not entirely practical, but a difficult problem to solve.
For the first time, researchers have made a cloaking device that works multidirectionally in three dimensions — using no specialised equipment, but four standard lenses. Continue reading “‘Invisibility cloak’ uses lenses to bend light”

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