If you are interested in the physics science latest discoveries, you will be excited to find out that scientists at the University of California, Berkeley, have become the first to engineer 3-D materials able to reverse the natural direction of visible and near-infrared light. The materials could be used as the basis for higher resolution optical imaging, as well as nano-circuits for high-powered computers. Science-fiction and fantasy fans will be amazed to hear that the discovery may also lead to the development of the cloaking devices to render objects invisible to the human eye.