Researchers have discovered that dense crowds can spontaneously synchronize into collective oscillations, with hundreds of people moving in coordinated, swirling patterns. How did they do it? By studying the Spanish tradition of running with the bulls. Jeff and Anthony discuss getting lost in a crowd, and how science can make these large events safer for everyone.

Link to the story: https://phys.org/news/2025-02-spanish-bulls-festival-reveals-crowd.html

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