Note A — Chapter XVI

The principle of this invisible cloak involves the use of an electronized fabric. All color is absorbed. The light rays reflected to the eye of the observer thus show an image of empty blackness. There is also created about the cloak a magnetic field which by natural laws bends the rays of light from objects behind it. This principle of the natural bending of light when passing through a magnetic field was first recognized by Albert Einstein, a scientist of the Twentieth century. In the case of this invisible cloak, the bending light rays, by making visible what was behind the cloak's blackness, thus destroyed its solid black outline and gave a pseudo-invisibility which was fairly effective under favorable conditions.