How can public spaces remain safe when large crowds move through them? Engineers and researchers who study these environments often rely on physical models borrowed from fluid dynamics—a branch of ...

The death of at least 56 people in a stampede at a soccer stadium in Nzérékoré, Guinea, is the latest example of how quickly mass gatherings can turn catastrophic. While these events often seem ...

New York City marathon runners on the Verrazzano-Narrows Bridge. Source: Wikipedia/Creative Commons Large human crowds exhibit fluid-like collective behavior that can be predicted based solely on ...