The “invisibility cloak,” something that we thought can only happen in a movie such as Harry Potter has come true. Recently, researchers at Cornell University created a “hole in time,” which eventually led to the invisible cloak. Inside the hole, everything that occurs is undetectable, but this phenomenon lasts for only 40 picoseconds (a picosecond equals to trillionths of a second).
In the journal Nature, the researchers reported that the invisible cloaking happens when the light is bent around an object and the object prevents the light to reach human eyes, making the object disappear from view. This fundamental similarly appears to surveillance cameras.
Moreover, the invisible cloak was devised due to not only altering the dimension of space but also altering the dimension of time. Changing the speed of light splits the flow of light, speeding up one part of light and slowing down another part. Then this creates a gap or a “hole in time” which cannot be detected by human eyes. In other words, the effect of invisibility occurs because the light moves too fast or too slow.
People are very surprised of the news that the amazing temporal, invisible cloaking was possible by manipulating the light. They are curious whether they can try the invisible cloak on and how it will be used. “Can I become Harry Potter now? I am so excited,” said JaeWon Yoon, a great fan of movie Harry Potter.
