CodeParade | Turning Sound Into a Laser @CodeParade | Uploaded August 2018 | Updated October 2024, 19 minutes ago.
Using non-linear acoustics, I'm able to focus audible sound like a laser. I go over some basic principals of operation, how I designed the circuit, and how you can build your own. Circuit Diagram at 1:18

Wikipedia Article:
en.wikipedia.org/wiki/Sound_from_ultrasound

Music:
Ice Dream - By "The Hikers"
youtube.com/channel/UCRaewGD5PbSckJqAcURNPVA