sergeidave Posted April 3, 2009 Share Posted April 3, 2009 Hi guys, I just remembered a question that bugged me for a few days, months ago. I was watching cool youtube videos of the electric arc phenomenon and I noticed that the noise they produce was always a "b flat" (musically speaking). Does this mean that the frequency of the waves that the electric arc is producing is always the same, independently from the source? Why is it always the same? I mean, in one video there's a huge arc more than a meter across making a thick b-flat tone/noise, and other videos showing smaller arcs from different sources on different places, but all of them producing b-flats!! Did I, by a strange coincidence found only the ones producing b-flats or is there a pattern when it comes to the noise produced by electric arcs? Thanks! David Link to comment Share on other sites More sharing options...
GDG Posted April 3, 2009 Share Posted April 3, 2009 My guess is that they're all powered by transformers that are plugged into 60 Hz AC lines. Bb is a little over 58 Hz. 1 Link to comment Share on other sites More sharing options...
dirtyamerica Posted April 3, 2009 Share Posted April 3, 2009 Now try to find a youtube video filmed in Europe where they use 50Hz AC. Link to comment Share on other sites More sharing options...
gre Posted April 3, 2009 Share Posted April 3, 2009 I think the coils can hum/ring (maybe the arc as well) at the frequency which they are pulsed. The particular coils you were watching might all have the same resonant frequencies, which is why they all had the same "pitch", I'd guess. Link to comment Share on other sites More sharing options...
lifestream Posted April 3, 2009 Share Posted April 3, 2009 Also if you have noticed, it is possible to generate music too, by changing resonant frequencies i assume (never looked in depth into it) - so not all arcs generate same pitch noise. http://www.liveleak.com/view?i=3cc_1182393477 Link to comment Share on other sites More sharing options...
Shadow Posted April 4, 2009 Share Posted April 4, 2009 Here ya go ) (The fun starts at 0:45) Link to comment Share on other sites More sharing options...
h4tt3n Posted April 6, 2009 Share Posted April 6, 2009 Yeah, that rocked! Cool vid Link to comment Share on other sites More sharing options...
sergeidave Posted April 6, 2009 Author Share Posted April 6, 2009 Thanks, guys!! Link to comment Share on other sites More sharing options...
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