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Japanese researchers invent speech-jamming gun
The speech-jamming gun
Japanese researchers have invented a hand-held speech-jamming gadget that can painlessly force people into silence.
Kazutaka Kurihara of the National Institute of Advanced Industrial Science and Technology and Koji Tsukada of Ochanomizu University developed the portable ‘SpeechJammer’ gun that can silence people more than 30 meters (100 feet) away.
In their research...
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