3 ms·
Weren't these things ear-splittingly loud from the constant formation of plasma balls in midair? That's what I recall from a demonstration In The Day
by lainga 2y ago
Weren't these things ear-splittingly loud from the constant formation of plasma balls in midair? That's what I recall from a demonstration In The Day
- mey 2y agoLooking into the plasma/laser paper and it mentions 77.2 dB at an insanely close 22mm distance. Background was 55.7. http://arxiv.org/pdf/1506.06668v1 http://arxiv.org/pdf/1506.06668v1 Page 9. It sounds (hah) like it wouldn't be pleasant if you have your head near a full display in operation, especially since the noise scales with the resolution/brightness. It would be interesting to see how quickly the noise drops off over distance. You are looking at something between a home sound system, vacuum cleaner, or highway traffic at that volume level. Tolerable but not pleasant.
- Filligree 2y agoI wonder if it could be modulated to function as a sound system?
- ben_w 2y agoYes. You may enjoy the similar use of Tesla coils: https://youtu.be/rd3bH_xNYYQ?si=TXO_kA0PZ6YkUZyt https://youtu.be/rd3bH_xNYYQ?si=TXO_kA0PZ6YkUZyt
- doublerabbit 2y agoPersonally I'm more the floppy drive fan. https://m.youtube.com/watch?v=8fh1CIupVXU https://m.youtube.com/watch?v=8fh1CIupVXU But Tesla coils are cool, as are van de graaff generators.
- aidenn0 2y agoA friend of mine built speakers that ionized the air and then used some mechanism (electrostatics? voice coil?) to move the air directly; kind of a coneless speaker. It didn't get that loud and made a lot of ozone.