The desire to make people and objects invisible is old. Various experiments have been developed for decades. However, the most recent one seems to have hit the mark: an invisibility cloak created by Chinese professor Chu Junhao, director of the Faculty of Science at Donghua University in Shanghai.

In a public event, reported on social networks, the academic showed the properties of the new material, when two assistants displayed before him a transparent plate that immediately made his body invisible from the waist down.

As if it were Harry Potter’s invisibility cloak, the material used allowed the lower part of his body to disappear from view. But how does it actually work?

Chu Junhao has noted that “invisibility was achieved with a series of templates or lenticular grids. These are a kind of transparent sheets made up of tiny convex cylindrical lenses. When light passes through this outstanding material, a refraction phenomenon occurs that erases the image from the visual field.”

At that moment, “the material will cause the light to be compressed into thin strips and when the number of lenses is large enough, invisibility occurs.”

When this point has been reached, the image we perceive breaks down into millions of identical particles, making it impossible for the human eye to capture the set of elements. It is as if what was in front of the viewer has disappeared.

Although the professor at Donghua University in Shanghai defends the application of this layer in the military area, to disappear airplanes, for example, he also points out that it could soon become another piece in our closet.

Technological developments have opened the door to the possibility that Harry Potter's invisible cloak could go from magic to reality.

An infrared physicist made his legs disappear directly with the help of a magical material called "lenticular grating" at a scientific event. pic.twitter.com/s8g2QfDiJd

— China Focus (@China__Focus) October 31, 2023

M.Pino

Source: huffingtonpost

(Reference image source: Unsplash+, in collaboration with Getty Images)

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