The Pentagon is seriously considering using the invisibility cloak in its repertoire. This is not something magical out of Harry Potter but a very real phenomenon.
Arthur C. Clarke once said that any latest form of technology is indistinguishable from magic and he just may have been right in his guesstimate. The US military is looking into the dielectric metasurface cloak.
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The researchers responsible for this new device have submitted their report to the Pentagon. The invisibility cloak consists of a super-thin ceramic surface that fits like a mold around anything and prevents its detection by radar or other means.
The cloak can handle light impinging upon it or send back radio waves thereby making it for all purposes invisible. The thinness of the cloak has been a factor that has evolved with the times.
Once upon a time, Teflon was used. Back then the coating on the cloak was ten times thicker than it is now. In the past, to dodge a 3 centimeter radar wavelength, the coating needed to be 30 centimeters thick. But now thanks to more efficient procedures and better technology, the coating would only need to be 3 millimeter in thickness.
There are some glitches along the way though. The direction and angle from which the wavelengths hit the object are one issue. Only a 45 degrees angle (with a margin of 6 degrees) could lead to the invisibility effect.
All other angles will make the object visible thereby ruining the very purpose of the novel technology. Furthermore, the coating could either be for radar stealth or avoidance of light detection. It could not act in a similar manner for both cases. Once these loopholes are gotten rid of, the material can be produced in massive amounts for use by the military.
The next decade is crucial in the integration of this invisibility technology by the US military, reported Army Times. Currently, things are at an impasse. But that does not mean that new methodologies will not be discovered to make the technology feasible.
About a decade ago, the whole thing got off the ground. It took some time before the present stage of hopeful excitement was reached and it will take some time before it is actually used in the field.
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The military and air force could coat its drones and jet fighters with this invisibility cloak. They will thus escape detection by the enemy’s radars and may not even be visible to the naked eye.