Nano World Invisibility through nano: "'There are probably quite a number of useful things you could do with stealth for the military,' said researcher John Pendry, a physicist at Imperial College London.

More mundane applications also include hiding obstacles -- 'for example, one may wish to put a cloak over the refinery that is blocking your view of the bay,' said researcher David Schurig, a physicist at Duke University in Durham, N.C. Moreover, objects invisible to electromagnetic fields are isolated from them as well. 'You may want to protect something from electromagnetic interference,' he added. "