Wednesday, September 03, 2008
Chinese researchers, fearful that a U.S. invisibility cloak could hide objects from view while also blinding anyone inside, have devised what they call an anti-cloaking layer that solves the latter problem. In work performed at the Shanghai Jiao Tong University, the theoretical anti-cloak would fit around an object but inside the invisibility cloak, permitting anyone inside to see out by merely pressing the anti-cloak against the invisibility cloak. However, David Schurig, co-inventor of the invisibility cloak at North Carolina State University, said the anti-cloak layer is unnecessary since invisibility cloaks work only at select wavelengths.
Posted by R. Colin Johnson at 1:18 PM