3 ms·
Apparently this is 1947-tech: https://en.wikipedia.org/wiki/Laser_microphone https://en.wikipedia.org/wiki/Laser_microphone I even remember there where schemat
by Puts 6y ago
Apparently this is 1947-tech: https://en.wikipedia.org/wiki/Laser_microphone https://en.wikipedia.org/wiki/Laser_microphone
I even remember there where schematics for a laser-microphone circulating on the early 2000s internet that could translate the vibrations of windows into sound.
- OkayPhysicist 6y agoI built one of those in college. Hardware's super simple, but actually getting it alligned is a total PITA.