A mathematician has created a spacetime cloak using just light and mirrors and that allows him to skip seconds or even minutes.
A spacetime cloak, or event cloak, is a means of manipulating electromagnetic radiation in space and time in such a way that a certain collection of happenings, or events, is concealed from distant observers.
Rather than using lights and lens to slow down and speeding up light, Miguel A. Lerma has created a way to manipulate an obscurity gap by diverting the light through paths of appropriate length with an arrangement of switchable transreflective mirrors.
For more information on the new SpaceTime cloak using mirrors and lights jump over to the paper written by Miguel A. Lerma website for full details and a scientific explanation.
“We have shown how to create an event cloak device without the use of metamaterials, by a simple arrangement of switchable transreflective mirrors. In the light arriving to an object an obscurity gap is created by diverting the incoming light through a longer path, and this gap is closed in the light path leaving the object by deviating the light through a shorter path.”
Source: Gizmodo
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