Watch this pottery turn into a trippy zoetrope when painted

Chattering is a pottery wheel technique where a tool bounces against the rotating piece, creating a pattern of small divots. When it's time to paint it, a hypnotic visual effect appears.

Here's slow motion footage of how it works:

170. Glazing Chattering Texture Bowls Using Underglazes and Wax Resist (YouTube / Hsinchuen Lin)