Re: [Sursound] Massless speakers

2018-03-26 Thread Gary Gallagher
Archontis, Was you group using a dual laser set up or where you depending on dust/debris in the air to trigger the noise? Gary On Mon, Mar 26, 2018, 18:39 David Pickett wrote: > At 09:25 26-03-18, Politis Archontis wrote: > > >I also remember during

Re: [Sursound] Massless Speakers

2018-03-26 Thread dan2...@yotz.org
> > I think the product you all are talking about was made less than five miles > from here, yet I still have not been able to hear a working set. Company > was/is DuKane. Here's a third-party page with more info: http://www.roger-russell.com/ionovac/ionovac.htm -- next part

Re: [Sursound] Massless speakers

2018-03-26 Thread David Pickett
At 09:25 26-03-18, Politis Archontis wrote: >I also remember during a lecture in ISVR, UK, the lecturer mentioning >these old plasma tweeters, saying they did not get very far cause they >were ionizing the air producing hazardous levels of ozone :-D . Rubbish! A friend of mine had a pair and

Re: [Sursound] Massless speakers

2018-03-25 Thread David Pickett
Are these not the same as the Ionophone speakers, sold as Ionofane tweeters in the 1960s? They were flat from 10kHz to oo! David At 12:41 25-03-18, Bearcat Şándor wrote: > >Accapella Audio Arts has been making horns with plasma tweeters for a while >now. They are some of the largest, and

Re: [Sursound] Massless speakers

2018-03-25 Thread Bearcat Şándor
Accapella Audio Arts has been making horns with plasma tweeters for a while now. They are some of the largest, and most expensive speakers made. Awesome in thier rediculousness, i'd be afraid that someone would get drunk at my home and mistake them for a sink or a urinal.

Re: [Sursound] Massless speakers

2018-03-25 Thread Augustine Leudar
Ive been wondering for a while whether it was possible to use electromagnetic waves interferance patterns to generate sound in 3D space - the conclusions my physisit friends had was yes - possible - but not without killing anyone that heard it .Plamsa is a bit different of course to an EM wave

[Sursound] Massless speakers

2018-03-25 Thread Gary Gallagher
Never heard of this. Using laser plasma as driver for a speaker. Here as weapon - but it would be interesting to hear/see a refined version of this. I'm curious about the spinning disk set up at the end of the video there appears to be some sort of modulation in the sound. US MILITARY DEVELOPING