Tuesday, May 14, 2013

'Predator'-Proof: An Invisibility Cloak for Heat

Thermal invisibility cloak: Heat is passed around the central area from the left to the right. Temperature characteristics (white lines) remain parallel.

A new invisibility cloak for heat could help protect electronics against dangerous heat spikes, researchers say.

In the past decade, scientists have invented special materials that can route light and sound around objects. These make items they cover appear as if they are not there, recalling the cloaks of invisibility in "Harry Potter" and "Star Trek."

Now a team of researchers from Germany and France has developed a cloak that can guide the flow of heat around objects, making them thermally invisible.

"We manufactured a working cloaking device for heat flow for the first time," Robert Schittny, a physicist at the Karlsruhe Institute of Technology in Germany, told TechNewsDaily.

The scientists created the cloak by cutting hexagonal arrays of microscopic holes in a copper plate. They then filled these holes with a thin layer of silicone rubber. [Read also: 'Invisibility Cloak' Renders Objects Hidden to the Naked Eye]

For the rest of the story: http://www.livescience.com/31957-predator-proof-an-invisibility-cloak-for-heat.html

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