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Chinese scientists develop laser that can spot hidden object from more than a kilometre away

Chinese scientists have developed a way to see an object hidden behind a screen more than a kilometre away.

They said the technique, known as non-line-of-sight (NLOS) imaging, could be used for everything from defence and policing to transport.

The team of scientists at the University of Science and Technology of China set up a laser emitter at their university campus in urban Shanghai and hid a mannequin behind a screen inside a flat 1.43km (0.89 miles) away, according to a paper published earlier this month in the Proceedings of the National Academy of Sciences.


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