Cloaking Device A Possibility?
Now we can wage secret wars even more secretively--more fodder for the black helicopter/tinfoil hat moonbat crowd:
Researchers in the US and Britain have unveiled their blueprints for building a cloaking device.
So far, cloaking has been confined to science fiction; in Star Trek it is used to render spacecraft invisible.
Professor Sir John Pendry says a simple demonstration model that could work for radar might be possible within 18 months' time.
Two separate teams, including Professor Pendry's, have outlined ways to cloak objects in the journal Science.
These research papers present the maths required to verify that the concept could work. But developing an invisibility cloak is likely to pose significant challenges.
Both groups propose methods using the unusual properties of so-called "metamaterials" to build a cloak.
These metamaterials can be designed to induce a desired change in the direction of electromagnetic waves, such as light. This is done by tinkering with the nano-scale structure of the metamaterial, not by altering its chemistry.