this post was submitted on 17 Jan 2024
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[–] [email protected] 20 points 2 years ago (2 children)

I'm pretty sure it's been demonstrated that you can reconstruct soundwaves from the vibrations of a reflective surface and thereby use a beam of light to spy on a verbal conversation.

[–] [email protected] 10 points 2 years ago (1 children)
[–] [email protected] 7 points 2 years ago

same guy who invented the theremin!! (although the thing used radio waves, it wasn’t a laser microphone)