Invisible secrets

Who doesn't want to become invisible,Imagine the things that we can do if we get invisible....Fun 4 sure.. .....Imagine while you're reading this someone is behind you and you can't see them.....creepy..
You can fetch everything you wanted in your life...you can actually rule the world ...
I need not mention what we'll do if we get invisible coz each of us will be having our own to-do list...
So am sure there s nobody in here who doesn't want to be a " Hollow Man" ...If you are a fan of Harry Potter then you know abt his invisibility cloak right...Seems possible in a fictional world, what about invisibility cloak in real world?...possible?
The scientists of tokyo university have proved this possible and they're calling it achievable thro' Optical camouflage technology..How this technology makes people invisible?..read on

The experiment requires a video camera, projector and obviously a computer..In order to add more reality to it, you need to arrange for a cloak thats made of some reflective material so that your body acts as some kind of screen and it gives an illusion of invisibilty .The setup is what which is really important in making this possible.



Capturing the background image requires a video camera, which sits behind the person wearing the cloak. The video from the camera must be in a digital format so it can be sent to a computer for processing...The image after processing should be sent to the projector which projects the image on the robe which acts like a screen.The projector s made sure to face a mirror so that the projected image is reflected towards the cloak.The observer,the one who's looking at you ...can't actually see you, but only the image behind you and it actually gives him an illusion that you're not actually present over there.
Light plays a great role in here,only if it re-directed in the opposite direction, you can achieve the real effect.you need something called a meta metamaterial to re-direct light in that way.
Metamaterial, as it is called, produces what's known as negative refraction of visible light. That means light is made to travel in the opposite direction from how it normally should bend when passing through a material. A common example is how a pencil will appear to bend upward when half-submerged in a glass of water. In the new work, researchers make the light appear to bend the other way.
Metamaterials are artificially engineered structures that have "extraordinary optical properties that do not exist in nature," the researchers write in Science. "They can alter the propagation of electromagnetic waves, resulting in negative refraction,subwavelength imaging and cloaking."
..Accuracy and reality depends upon the arrangement and the components that you're using..The real advantage of this is that they can actually use this technology to make tanks and large weaponry near invisible.
Looks like you expected getting invisible for real..Science can take you towards magic only to some extent..lets hope for a better technology that makes us really invisible..