Researchers have already developed a device that allows you to see through eight-inch-thick concrete walls, but now, scientists have devised another way to reveal objects that are hidden from view: a camera that can see around corners.
The novel imaging tool works a lot like sonar, which uses echoes to determine the position and shape of distant objects; the difference is that this new technology uses light (and some sophisticated image-processing capabilities) instead of sound.
Meet the camera that allows you to see around corners [io9]
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