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'Whisper' laser tech sends audible messages to specific people
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'Whisper' laser tech sends audible messages to specific people
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28th January 2019, 14:26
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| [M] Reviewer  Join Date: May 2010 Location: Romania
Posts: 148,500
 |  'Whisper' laser tech sends audible messages to specific people Researchers from MIT have discovered a way to send highly targeted audio signals directly to someone's ear at a distance using laser beams. The system works using the "photoacoustic" effect, where water vapor in the air absorbs light, forming sound w... https://www.engadget.com/2019/01/28/...rgeted-people/ |
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