I Built a CIA Spy Device (Laser Mic)
6:06
YouTubeSomethingAboutScience
I Built a CIA Spy Device (Laser Mic)
In this video, I build a laser microphone, a device that can pick up sound from a distance using just a laser and receiver. This technology was first used during the Cold War by the KGB and is still used today. By shining a laser beam at a window, sound waves inside the room cause tiny vibrations that modulate the reflected light. Using a ...
1.3M views9 months ago
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YouTubeJan 4, 2024
Most people still think laser is the only route to clear vision but there’s another treatment quietly taking over especially for people who aren’t good candidates for traditional laser correction 👁️💡 It’s becoming the go to for high prescriptions, dry eyes and those who want a reversible option but I’m not giving the name away in the caption… you’ll hear it in the video 👇✨ Do you think you know which treatment is taking the lead #EyeHealth #VisionCorrection #Optometry #DoctorTok #RefractiveSu
Most people still think laser is the only route to clear vision but there’s another treatment quietly taking over especially for people who aren’t good candidates for traditional laser correction 👁️💡 It’s becoming the go to for high prescriptions, dry eyes and those who want a reversible option but I’m not giving the name away in the caption… you’ll hear it in the video 👇✨ Do you think you know which treatment is taking the lead #EyeHealth #VisionCorrection #Optometry #DoctorTok #RefractiveSu
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