Researchers at Heriot-Watt University in Edinburgh, Scotland have recently developed a super sensitive camera that could detect what is hidden behind the corners. The camera is called single-photon avalanche diode (SPAD) camera and using the photons echo mapping technique, it is possible to see beyond the line of sight!
Actually this technique is really not that new. In 2012, MIT researchers announce that they have developed a camera that can capture trillion frame per second. Using it, it is possible capture the photons that reflected from object or person around the corners.
Cool right ?