Vibrations of granular materials: Theoretical physicists shed light on an everyday scientific mystery
Phys.org - 2024-04-17T20:10:08.000Z

Coffee beans in a jar and piles of rice or sand are examples of granular matter: materials composed of large numbers of macroscopic—rather than atomic scale—particles. Although granular matter is extremely familiar in everyday life, it represents an unexpected frontier in fundamental physics: Very little is understood about it.

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