Dutch artist M.C. Escher’s most famous drawing, “Circle Limit IV (Heaven and Hell)”, shows angels and demons in a tessellation that fills a circle without empty spaces. This masterful woodcut inspired an international partnership of researchers including Politecnico di Milano Physics Department to author the cover-story article published in Physical Review Letters.
Source:
https://phys.org/news/2019-11-escher-angels-demons-woodcut-deforms.html