|MadSci Network: Physics|
I recently built a Jacob's Ladder and noticed that the spark is predominantly white in color with a small amount of blue. I've heard that lightning/sparks emit signals covering most of the electromagnetic spectrum, but I'm not sure how it relates to color and if it is dependent on the source. For my case, the source is a 60 Hz signal stepped up to about 12kV. Is the color a consequence of the heat generated by the spark or the fact that the whole visible spectrum is being emitted? Any information you could offer would be greatly appreciated.
Re: what is the color of lightning?
Try the links in the MadSci Library for more information on Physics.