Smith, David Schurig, and Steve Cummer discuss their work in "cloaking" an object by bending microwaves around it. Their device consists of 10 concentric rings of a copper-and-fiberglass metamaterial.

A study led by University of California San Diego ... serves as a type of cloaking device that prevents triggering the bacteria's immune system. "When phages infect a bacterial cell, the EPI ...