In the red alert game, there is a phantom tank that can stealth in the team, unexpectedly emerged in the battle, attack the weakest enemy forces. Now, this "invisible technology" has not only been realized in the game.
According to foreign media reports, Israeli scientists have developed a cloak-type device that can shine on the object of the light scattering out, so that it can not be detected. This cloak can be regarded as the legendary "invisible clothing."
Scientists have confirmed through research that the light around the cloak can be bent by means of an optical chip. In this way, the light will not interact with the object, so that the object stealth.
The object's invisibility method is based on the study of "metamaterials," which utilize and control light by observing the interaction of light with objects. When a light shines on an ordinary object, it is reflected back by the object; this "metamaterial" causes the light to scatter. Therefore, placing the object on the surface of the cloak made of such "metamaterial" will scatter the ambient light so that the naked eye can not see the placed object. However, the object, although "stealthy", can still be monitored by infrared sensors or radar.
In 2015, the US Department of Energy researchers used this material to create a hidden "skin cloak" that could be adapted to the size of an object and could not be detected. At present the size of the cloak can only be described as microscopic. But scientists have been working on larger versions for larger objects.
In the following study, scientists also conducted experiments using X-ray, infrared and visible light to continue to explore the mysteries of the interaction between light and objects.
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