Here are 3 videos I saw on youtube, about plasma speakers (sort of).
[youtube][/youtube]
This first one is pretty cool, but it only gets better...
[youtube][/youtube]
Hows that? And finally....
[youtube][/youtube]
How cool is that? Can anyone explain how it works?
Plasma Speaker.
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warhead052
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jackssmirkingrevenge
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http://en.wikipedia.org/wiki/Plasma_speakerwarhead052 wrote:Can anyone explain how it works?
pity it only plays excrement.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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danielrowell
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That's pretty darn cool![Edit]: Ninja'd by a few seconds.
I hope he's somehow using helium like the article says or he could be in trouble...Wikipedia wrote:Early plasma-speaker designs ionized ambient air containing the gases nitrogen and oxygen. In an intense electrical field these gases can produce reactive by-products, and in closed rooms these can reach a hazardous level.
Last edited by danielrowell on Mon Oct 10, 2011 1:01 pm, edited 1 time in total.
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warhead052
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Its not a bad speaker, but it could probably use some higher voltage. If you listen to the end of the third video, you can hear the radio broadcast, which would explain the music.
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Technician1002
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The one in the video has a bad problem with the jumpy flame. This is causing the location of the sound source to move with the flame. A proper one has a small stable flame that emits the sound.
The moving flame is causing Doppler shift as well as changing the direction the sound is projected resulting in amplitude shifts as the speaker "points" different directions at random times. I've seen much better attempts.
The moving flame is causing Doppler shift as well as changing the direction the sound is projected resulting in amplitude shifts as the speaker "points" different directions at random times. I've seen much better attempts.
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warhead052
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Well, its a first time around, and this is a college student (I think) that made it.
What an electric arc makes is ozone (O<sub>3</sub>) and nitrogen dioxide (NO<sub>2</sub>).
If it isn't an overpowering smell, then you're fine. (You know when it's too strong, believe me.)
A couple of members here know how I intend to exploit that side effect of arcs.
If it isn't an overpowering smell, then you're fine. (You know when it's too strong, believe me.)
A couple of members here know how I intend to exploit that side effect of arcs.
/sarcasm, /hyperbole
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Technician1002
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If the arc is in air, this is an issue. In a flame with a complex reaction, there is little ozone. The presense of fuel takes care of the Ozone. It is the ultimate Charcoal Filter. I'm not sure about Nitrogen Dioxide.Zeus wrote:What an electric arc makes is ozone (O<sub>3</sub>) and nitrogen dioxide (NO<sub>2</sub>).
If it isn't an overpowering smell, then you're fine. (You know when it's too strong, believe me.)
A couple of members here know how I intend to exploit that side effect of arcs.
Ozone is produces more by silent discharges, I haven't studied the byproducts of electrical discharges to a great extent, but I do know that NO<sub>2</sub> is produced, an excellent though long topic is here at Sciencemadness.
/sarcasm, /hyperbole