The authors of this paper analysed Acoustic Emission (AE) signal generated in different stages of punch process, emitted from crank PMSC - 12 punch press. The details of the instrumentation used are described. The experimental part describes the influence of feedstock thickness and hardness to the intensity of the emitted signal. The final part of the investigation presents the changes of AE signal caused by simulated tool abrasive wear. The possibilities of AE monitoring of punching of thin plates are also discussed.

The essay describes the exhibition Chroma held at the Metropolitan Museum in New York (5th June 2022 – 26th March 2023) on the subject of polychromy in Ancient Greek sculpture. The author presents a short description of the history of research into the Greeks painting their sculptures as well as of the political context of this issue, in which the whiteness of the marble statues is intertwined with the idea of a white Western European civilization. Another important context is that of the American political landscape, in particular far-right, racist movements, which often appropriate symbols connected with what they see as “white” Greek civilization.