Silk 'invisibility cloak' created by scientists - Telegraph

Silk 'invisibility cloak' created by scientists - Telegraph: "At the moment the cloak only works for light outside the visible spectrum, in the terahertz band between radio and infrared. But its developers, at Boston University and Tufts University, believe that it could be made to work at far smaller wavelengths, possibly even including visible light, according to Discovery News."