Cloaks for hiding heat

Proposed shield could protect computers or satellites from high temperatures

A new type of “invisibility” cloak could take the heat off hot devices. A theoretical cloak that can shield a protected area from intense temperatures is described online March 26 in Optics Express.

With a constant 100° Celsius heat source coming from the left-hand side, the area contained inside a theoretical thermal cloak (center circle) remains cool relative to its surroundings.