This Material Sorts Itself

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Turning a drum full of grains of different sizes sorts the grins by size and forms weird patterns. It's linked to granular segregation, the Brazil nut effect and landslides on the moon.

Here's the paper by Chris and Nico: https://www.researchgate.net/publication/377489269_Particle-size_segregation_patterns_in_a_partially_filled_triangular_rotating_drum

Here's the colloidal phase separation paper: https://pubs.acs.org/langd5/article-abstract/26/5/3174/306151/The-Role-of-Polymer-Polydispersity-in-Phase


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