(By omg_itsemilye)
US researchers creates material that could make wearer of that material invisible. This will certainly make the fiction-based Harry Potter cloack to become a non-fictional reality.
Black will be getting blacker. US researchers had reported in last month that they have created a paper-thin material that absorbs 99.955 per cent of the light that hits it. This is about 30 times as dark as the international current standard for blackest black. As we learnt also in fundamental physics, we see the color of the object because of the primary light fractions that are not absorbed by the material (that light falls on) and REFLECT back into our eyes. This research results will make objects inside of them literally invisible under the right conditions. It will be very black, like in a forest on the darkest night. Nothing comes back to you. It will be very very very dark.
The substance is made of carbon nanotubes: – they are microscopic, hollow fibres whose walls are just one atom thick. Its creation reflects researcher?s growing ability to manipulate material(atoms) and light. The material bends light rays ?backward?, a phenomenon thought to be impossible just a few years ago. This phenomenon forces some wavelengths of light to flow around an object like water around a stone (imagine it). As a result, things behind the object become visible while the object itself disappears from view.
(By answers.com)
Carbon nanotubes (CNTs) are allotropes of carbon and essentially organic compounds.
A single-walled carbon nanotube (SWNT) is a one-atom thick sheet of graphite (called graphene) rolled up into a seamless cylinder with diameter on the order of a nanometer. This results in a nanostructure where the length-to-diameter ratio exceeds 10,000. Such cylindrical carbon molecules have novel properties that make them potentially useful in many applications in nanotechnology, electronics, optics and other fields of materials science. They exhibit extraordinary strength and unique electrical properties, and are efficient conductors of heat.
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