For more than half a century, the idea that light or radio waves could suddenly reverse in time sounded like a thought ...

Physicists have finally confirmed a phenomenon that sounds like pure science fiction: waves that appear to bounce off a ...

Sketch of the concept: a disordered medium (top) is made perfectly transmitting by placing a custom-made anti-reflection coating in front of it (bottom). (Courtesy: TU Wien) A new technique that ...