SIMPLE tech. Battery draws on metal

The video shows the technology of drawing on metal. How to draw. The drawing was made by electrochemical artistic etching. Etching on a stainless steel knife. The krone battery is used as a direct current source. The video shows the entire step-by-step process of making a pattern on a knife and is accompanied by pleasant music. I wish you a pleasant viewing. To support and develop the channel: _ _ _ =as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B089QC2C8G&linkCode=as2&tag=kirillrunz-20&linkId=eb2b48a77b7703aec8d82e36a54cc88d =as_li_tl?