23 Jun
2022
23 Jun
'22
9:45 a.m.
On 6/22/22 10:57, David Kastrup wrote:
"David W. Jones"<gnome(a)hawaii.rr.com>
writes:
Yah, I thought that a laser able to generate sound would be a bit too
strong to use around people.
Plasma speakers. Fascinating. Is there a connection between the volume
of the plasma and the frequency range it can produce? Such as, needing a
bigger box of plasma to produce bass frequencies?
I think my favorite sound-producer is still a pipe organ in a cathedral. :)
--
David W. Jones
gnome(a)hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com
"My password is the last 8 digits of π."
https://www.sciencedaily.com/releases/2022/06/220622101415.htm
If sound can be seen optically, can it be generated optically? Say, to
go with a hologram?
I was of the opinion that laser-based interferometry
microphoning off
window panes had already been standard fare of secret services for
decades. I don't think you really want to use the kind of lasers that
successfully push surfaces around.
Plasma speakers<https://en.wikipedia.org/wiki/Plasma_speaker> are
enough of a high-energy ickiness.