British defence company BAE Systems has developed an "invisibility cloak" that can effectively hide vehicles from view in the infra-red spectrum.
The patented system -- called Adaptiv -- uses a matrix of hexagonal "pixels" that can change their temperature very rapidly. On-board cameras sweep the area to pick up the background scenery and display that infra-red signature on the vehicle.
This allows even moving tanks to be effectively invisible in the infra-red spectrum, or mimic other objects. "The tank skin essentially becomes a big infra red TV," BAE Head of External Communications Mike Sweeney told Wired.co.uk. "You can display anything you want on it -- including a cow -- while the rest of the vehicle blends into the background."
Read More: http://www.wired.co.uk/news/archive/2011-09/05/bae-invisibility-cloak
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