What is invisibility?
There are two versions of the tire of invisibility that scientists work on improvement. The first uses a widespread reality or combination of computers, cameras and reflective surfaces to make a person seek invisible. The second cloak of invisibility is made of metamators using nanotechnology.
The first cloak of invisibility is sometimes called optical camouflage . The person wears a cloak made of special reflective material. Looking at the observer from a particular angle, this masked person disappears from the perspective. This technology provides useful information to complete the real world. An example of this is a portable global positioning system (GPS), which tells useful information about a particular place or pair of glasses that overlaps the computer generated by the real world information that follows the wearer. Using some ideas for this technology, scientists were able to get someone to seem to disappear in the background.
The tire of the invisibility itself is made of retro-displayed material. ThisO special material has a bead surface, unlike a standard flat surface, most reflective materials. Most reflective surfaces cause the light to bounce at a different angle than it came or spread them into many smaller rays. The beading on the shell allows you to reflect light directly back in the same direction in one light beam.
Effectively, the coat converts into a wearable film screen. The bearer has a film camera. The camera gives a live video source to a remote computer. This computer processes the image and sends it to the pinhole size projector. The projector filters the image through the iris membrane that controls the passage of light and cleans the image. The IS image finally projected on the cloak, which becomes a precise reflection of what is happening behind them.
Another version of the tire invisibility is in the works of Duke University. This alternative cloak uses metamaterials noBo materials with strange properties. In this case, reflective metamathers created by nanotechnological work to create an object with a negative refractive index, causing objects not affected by light waves. Materials must have less wavelength than light to make it effective and therefore nanotechnology is an essential part of science. If it were completed as planned, the fabric would reflect the light directly from the image and the object would be basically masked.