Mechanical invisibility, you will have beautiful touch these objects, you will not feel the

You put your hand on a surface, but you feel nothing. Yet an object is hidden in this material: it is the mechanical invisibility.

Invisibility has always made us fantasize. Tales and magic illusionists were we used to dream then, technology has gradually made this possible. It is now more or less possible to make invisible elements in the eye, so to make disappear human beings or even entire buildings ! But technology does not stop there: in addition to making us invisible to the eye, it is also able to make us imperceptible to the ear. However, there is a way that seems to have been forgotten: the touch. Maybe make "disappear" an object so that it is no longer possible to feel when touched? The answer is yes.

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Private touch

KIT researchers were inspired by the tale of the princess and the pea: a princess who has not slept for a pea was under a thick layer of mattresses and quilts. They decided to create a material in which they slipped a rigid cylinder. Inside the cylinder, you can put what you want, your item will be imperceptible to the touch. You will say: "Obviously, it was placed in a rigid cylinder, therefore feel that this cylinder". But no, you will not feel the cylinder, you will not even feel it's there. If you rolled the object in cotton or foam you'd still have felt the cylinder by pressing but actually conceal this matter.

To explain briefly the material used, be aware that this is a metamaterial , a crystalline material worked with submicron precision. The structure is made up of tiny cones connected to the tip. The only disadvantage of this material is that it has to be worked according to the object it will hide under penalty of not fulfilling its function. The technology is not, for the moment, applicable to real public use.

However, if the research on the mechanical invisibility were to change, we could imagine the beautiful carpet that would allow us to not feel the ground when of a campsite . Or, as it combines the technology that makes objects invisible, perfect hiding places?