This theroy came about from the concept of refraction, which is the bending of light or other kinds of waves. In refraction, objects appear to be in a different place then where they actually are. The theory behind this is that if you can bend light a whole 180 degrees, then the object will not be seen. Scientists have already demonstrated this with microwave radiation using a cloak of metamaterials (man made materials used to bend and refract waves). They placed the cloak around an object and the radiation waves went around the object and then continued straight like nothing was even there.So its now certain that one day a real invisibility cloak will exist.
