Is it possible to cloak any objects

Remember the movie invisible man?Making object Transparent is always sceities dream.The F-117 Nighthawk stealth fighter was the first stealth aircraft to be used operationally .

While the technologic of cloaking a human has not been achieved.The first cloak could only hide two-dimensional objects viewed from specific directions – and only if they were "viewed" using one particular microwave frequency. Producing a cloak to hide objects from visible light, which has a wavelength several orders of magnitude smaller than microwaves – let alone cloaking objects when viewed from any direction .
"While full cloaking has not been achieved, it shows promises in the right direction," says Ulf Leonhardt at the University of St Andrews, UK.

For now, such technology can cloak only objects with a surface area of a few square micrometres and a few hundred nanometres deep. But "in principle, you can make the [cloaked] object larger and larger", says Thomas Zentgraf, a member of the Berkeley team.


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