The great unappreciated weakness of invisibility cloaks is that they only make things invisible to human eyes. Or x-ray imagers. Or ultraviolet sensors, infrared image analyzers, echo-location audio ...

Invisibility cloaks and superlenses could be improved by taking a page from the digital playbook, two scientists contend September 14 in Nature Materials. Their method, inspired by the 1s and 0s of ...

(Nanowerk News) The first functional "cloaking" device reported by Duke University electrical engineers in 2006 worked like a charm, but it wasn't perfect. Now a member of that laboratory has ...