'Space-Time Cloak' to Conceal Events

'Space-Time Cloak' to Conceal Events ScienceDaily (Nov. 16, 2010) — The study, by researchers from Imperial College London, involves a new class of materials called metamaterials, which can be artificially engineered to distort light or sound waves. With conventional materials, light typically travels along a straight line, but with metamaterials, scientists can exploit a wealth of additional