Photoacoustic communication approach could send warning messages through the air without requiring a receiving device
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Wow your students with a spellbinding demonstration of the sound of light., When used with the HeNe Modulated Laser, our Laser Voice Transmission
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The laser gun that can beam audio directly into someone's ear
Breakthrough experiment beams audio messages across the room using
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Scientists build system that uses a laser to beam sound into your ear
Whisper' laser tech sends audible messages to specific people