Science and fiction always had a chicken and egg relationship: it’s hard to tell which one informs the other. Take invisibility, a fantastical notion brought into popular culture first by HG Wells’ ...
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 ...
Imagine: You’re the proud owner of an invisibility cloak. What do you do? Do you sneak into concerts and make your way on stage? Spy on your friends to find out what they say about you when you’re not ...
A researcher at the University of Texas at Austin has devised an invisibility cloak that could work over a broad range of frequencies, including visible light and microwaves. This is a significant ...