Physicists Have Built Invisibility Cloaks That Can Shield Large Objects Lying On a Plane

" . . . Physicists Have Built Invisibility Cloaks That Can Shield Large Objects Lying On a Plane": " Two independent groups of physicists have built invisibility cloaks that can shield large objects lying on a plane. These 'carpet cloaks' are far closer to the intuitive idea of an invisibility cloak than devices previously built, they argue, because they hide objects that can be seen with the naked eye and do so at visible wavelengths. The cloaks are also relatively cheap and easy to make, being constructed from the natural material calcite."