A step closer to invisibility!

We are far from spectacular progress in recent months with the invisibility cloak, but a new discovery allows this important step forward in the search for the invisible. This time, a cylindrical tube that has been the subject of research. He disappeared but not the eyes of humans ...

A 3D object seen by humans but not by radar, is where is the discovery of researchers at the University of Texas at Austin. The study published in the journal "News Journal of Physics" explains how researchers were able to make invisible a cylindrical tube 18 inches long through plasmonic metamaterials. The researcher explained that Andrea Alu warbird, wrapped in these materials could become "super-stealth" and then become invisible to microwave radar. We're not there yet but it is a major breakthrough in techniques for manipulating light.

In fact, if this invisibility is not perceptible by the human eye is a result of frequency. The site Live Science explains: "The objects reflect light and other electromagnetic waves, it is through this that our eyes see and the radar can detect the presence of planes and boats. The envelope of Alu reflects electromagnetic waves so that waves reflected by the object are canceled. "The tube has become invisible, in the direction of detection.