3 ms·
Why, you only need to measure distance precisely to get the vibrations of a surface which is totally possible with a laser. Laser microphones do exist.
by wnkrshm 9y ago
Why, you only need to measure distance precisely to get the vibrations of a surface which is totally possible with a laser. Laser microphones do exist.
- wavefunction 9y agoThey do exist but the point raised is that for the laser microphone to induce the effects reported the laser would have to contain enough energy such that the laser would instead be so powerful that it vaporized any glass surface it was pointed at and overheat the laser source.