Thursday, August 25, 2011

MISSION INVISIBLE, NOT IMPOSSIBLE


Whether you're a Harry Potter fan or a mere fourth-level mage in a game of "Dungeons and Dragons," you're probably familiar with the concept of an invisibility cloak. Slip this magical garment over your head and, in the eyes of all onlookers, you are simply VANISH !!!

Due to the outburst of science and cutting edge technology such innovation has become a matter of dream come true. Researchers have constructed an invisibility cloak capable of hiding a tiny object by altering the behavior of the light that hits it. This is the first invisibility cloak made out of sophisticated, artificial materials called metamaterials that work with the full spectrum of light visible to the human eye.

The cloak, which works for the full spectrum of visible light traveling at any angle, is made out of silicon nitride layered on top of silicon oxide with minute pores. The silicon nitride is etched with a special pattern of holes. Because of their carefully calculated size, these holes can alter the speed at which light travels through the layer that contains them. This allows the engineers to manipulate our ability to see things. What you see is actually not just the light; what you are seeing is how the light is interacting with its environment. The pattern of microscopic holes essentially reconstructs the reflected light as if the light never hit the object in the first place, fooling the eye into missing the object. The most important thing is that, the cloak must be larger than the object and to built such cloak for a larger object it take eventually a very long time. Hope in near by future we get a well equipped n highly efficient camouflage technology by the invisible cloak.

Discovery consists of seeing what everybody has seen and thinking what nobody has thought.
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3 comments:

  1. hey!!! sun enuf i think u wud be posting about a magical(scintific) wand...the yielder(not elder) wand to yield the seemingly impossible scintifical gadgets!!!

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