It’s a little like the wood grain video, but after two pieces of wood, they move on to other objects. I liked the AC power supply transformer best.
[Verschleif 4k] (Viewer #160,054)
From the comments, this appears to be the English translation of the description:
“With an edge sander, half a millimeter is sanded off each work piece (wood, walnut, transformer, skull or analogue camera) and photographed. About 650 photos are made into a short film, which contrasts the inner structure of nature and technology.”