Inside there's a coil of wire wrapped around an iron core. When a current flows through this control wire, it creates a ...
An optical transistor that switches a laser beam on and off rather than an electric current could form the building block of future light-based computers. 1 July 2009 AN OPTICAL transistor that ...
Hardly a day goes by without a top-level research group announcing some kind of graphene-related breakthrough, but this one's a biggy: Researchers at the University of Erlangen-Nuremberg, Germany have ...
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