Armswiper.co.uk

I love it, this is truely amazing! I now really really want to own a tesla coil.

Make sure you have your sound turned on: Video

This video tells you how it works. Although, it doesn’t really take 12 minutes of video to say “We generate a square wave by clipping the audio input sine wave, and use that to turn the resonator on and off”, but it’s interesting none the less.