Scientists find new solid-state material for thermal regulation

About 90% of the world's energy use involves generation or manipulation of heat, while controlling thermal transport is yet a challenge in many fields, varying from the micro- and nano-scale electronic devices to aeronautics. ...

An invisible keyhole via transparent electronics

Hard times for burglars and safecrackers: Empa researchers have developed an invisible "keyhole" made of printed, transparent electronics. Only authorized persons know where to enter the access code.

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