Why are these accounts so different and how hard is it, really, to estimate the size of a crowd? Why people care about crowd ...

This happens when a crowd becomes so dense that its very nature changes. “When a crowd gets to a density of more than five people per square meter, it starts acting as more like a liquid than a ...

Crowd disasters, like the 2010 Love Parade tragedy in Germany, are often caused by uncontrolled collective motions. At that event, sadly, 21 people died in a stampede.

Move with the crowd. If you’re caught in a dense crowd, don’t fight it. “Move with the crowd to stay on your feet and avoid injury,” Herold said.

Videos posted online show a gray minivan plowing into the dense crowd, sending people flying into the air and dragging others under the vehicle. When the van came to a stop, the crowd charged at ...

Though no official number was released, Cpl. Thomas Mull of the Capitol Police in Hartford said he estimated 9,000 to 10,000 people had been in the dense crowd that filled the north lawn in every ...