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Grains, sheep and soldiers: How one scientist is studying the physics of crowds

By Ari Daniel
Published October 14, 2025 at 4:38 PM EDT

Applied physicist Iker Zuriguel studies the movement of particles and people to optimize their flow and improve public safety.

Copyright 2025 NPR
Ari Daniel
Ari Daniel is a reporter for NPR's Science desk where he covers global health and development.
See stories by Ari Daniel