We have been slowly realizing this reality of the invisible cloak, but the effect that Harry Potter in Hogwarts brought us. The latest advances in the findings of Iowa State University, whether it put it on camcorders based on metamaterials, high-tech disappears, is seen in the natural naked eye. Even those cameras cannot watch hidden video sources from one person, only other machines or maybe radar.
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The researchers realized this silicon wafer by embedding a fully filled ring resonator. A variety of adjustments in one form and allow scientists to suppress certain radar waves up to about 75%. This type of technology can be used in a stealth fighter.
On the other side of metamaterials, the University of California, Berkeley developed invisible high-tech reflected light to keep objects hidden. This method uses gold nano-antennas as "re-routed reflections of light waves", making it invisible to cover when the material is switched to gold polarization.
Now it's just a microscopic scale of work, measuring "reluctantly" 80 nanometers thick, only enough to cover a few biological cells.
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