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You never know what’s around the corner — unless you happen to have a super-advanced camera designed by researchers at Heriot-Watt University in Edinburgh, Scotland. This device has been designed to take extremely sensitive photographs that can detect the minute reflected lights from objects not in its field of vision. The result is a camera that sees around corners, and it works in real time.
The single-photon avalanche diode (SPAD) camera relies upon a type of echo mapping. You can think of it a little like radar, but with light. This part isn’t anything new — other projects have managed to do similar things. However, this camera is so sensitive that it can capture a photo every second. Therefore, you can watch an object move with the SPAD camera even when it’s technically out of sight.