The Simple Geometry That Predicts Molecular Mosaics

On a Saturday afternoon in the fall of 2021, Silvio Decurtins was leafing through a paper with a title that could have been pulled from a comic book for mathematically inclined teens: “Plato’s Cube and the Natural Geometry of Fragmentation.” It wasn’t the unusual title that caught his eye, but the pictures on the third page — geological patterns at every scale from cracked permafrost to Earth’s…

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