When a crowd becomes especially big and dense, like at a pilgrimage or a concert, things can get dangerous fast. A Spanish researcher is using physics to understand how they move, and hopefully, how ...

In crowds, most people are strangers to you, and everyone else for that matter. However, until now, the effect of stranger-to-stranger interactions on the choices people make in crowds has not been ...

A mighty cheer erupts from El Sadar — Pamplona's massive soccer stadium. Ossasuna, the local team, is winning. Iker Zuriguel estimates there are some 20,000 to 25,000 people inside the stadium ...