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Silently ‘speak’ to someone across the room with an ultrasonic beam Silently ‘speak’ to someone across the room with an ultrasonic beam
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Silently ‘speak’ to someone across the room with an ultrasonic beam
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Old 17th May 2017, 07:07   #1
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Default Silently ‘speak’ to someone across the room with an ultrasonic beam

If you ever wanted to whisper across a crowded room, a new experimental device might let you deliver sneaky instructions -- if the awkward speaker and electrodes don't tip everyone off. Researchers at the University of Bristol built a wearable that t...
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