New Technology Uses Lasers to Transmit Audible Messages to Specific People .

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Offline sr john

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Photo acoustic communication approach could send warning messages through the air without requiring a receiving device .

WASHINGTON  Researchers have demonstrated that a laser can transmit an audible message to a person without any type of receiver equipment. The ability to send highly targeted audio signals over the air could be used to communicate across noisy rooms or warn individuals of a dangerous situation such as an active shooter .

https://www.osa.org/en-us/about_osa/newsroom/news_releases/2019/new_technology_uses_lasers_to_transmit_audible_mes/ .

« Last Edit: February 26, 2020, 04:27:59 PM by sr john »
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