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.

Is your website invisible? If it's not designed to be found by search engine spiders, it might as well be. The key to visibility? Keeping content clear and simple. An untold number of expensive Web ...

Two mysterious “beings” are using an unknown “cloaking device” to hide themselves from humans after landing in a flash of ...