Silently ‘speak’ to someone across the room with an ultrasonic beam

Blog sponsored by Engadget.com 15.5.2017 Comments Off on 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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