Scientists have developed an unusual cloak
Physics from the technical University of Karlsruhe has developed an unusual cloak. Unlike large number of devices like this, invented in the last time, latest material is silent objects from the touch.
About his discovery of German scientists said in the journal Nature Communications. "Antisanitary coat made of polymeric metamaterial - drugs whose characteristics depend to start from the structure, and not on the chemical composition. The latest metamaterial consists of the delicate needle-shaped cones to touching the tips. The size of the contact surfaces is calculated with precision and to obtain adequate auto qualities. The cloak is made by the method of optical lithography direct laser writing. The consequence is the fabric through which either a finger or a measuring device not feel anything - even if to put her on a hedgehog.
On the lower edge of the cloak in a special cavity posted a metal cylinder. If this object was covered with foam rubber or wrapped in several layers of fabric, finger still felt for him - but the metamaterial so redirects power touch that cylinder as was completely invisible.
"Try to remember the fairy-tale by Andersen. Princess feels a pea through 20 mattresses and feather beds. But the 1st mattress from our metamaterial would be enough for a restful sleep," says a leading Creator of the article Timo Beckmann.
Today antisanitary" material is present only in laboratory conditions, but only in a couple of years, German researchers need to find a place for him in this life. It is, for example, thin and light sleeping bags, or carpets, hiding cables and pipes.
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