Underwater Arcs

I’ve been playing with underwater arcs recently. This will be more of a photodump than a writeup. I’m using a 1kV capacitor with ~600J stored energy. I’m also using saltwater because the breakdown voltage is lower.

The spark gap I’m using (there is a gap there). Made from two tungsten rods and hot glue. The glue is fine despite the electrode damage. The tips appear to have reflowed. At low currents all that happened with electrolysis, which caused the positive tip to be coated in some chemical.
A lower power shot (not actually a video). I need to make a better relay.
Higher power, shot at 300FPS
300FPS video.

Author: Garth Whelan

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