Scientists at UC Berkeley have developed a foldable, incredibly thin invisibility cloak that can wrap around microscopic objects of any shape and make them undetectable in the visible spectrum. In its ...

Today the world of Egyptology faces a silent crisis – not of looting, although that plays a part, but of disconnection. Walk ...

We are said that the real world in which humans live is present in three dimensions or four dimensions. "Three-dimensional" is a relatively easy-to-understand concept for people who live while ...

Scheme illustration of object identification and all-optical 3D reconstruction system. (a) A contour surface image of the object can be obtained in a single processing of the system. (b) High-contrast ...

Scientists at the University of Texas in Austin have successfully "cloaked" a three-dimensional object in free space for the first time. Unfortunately they were only able to do so for waves in the ...