To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S1. Evolution of a layer of HBEC cells with time. (Scale bar: 300 μm.) Physics of active jamming during collective cellular motion in a monolayer Simon Garcia, Edouard Hannezo, Jens Elgeti, Jean-François Joanny, Pascal Silberzan, and Nir S. Gov PNAS. 2015. DOI: 10.1073/pnas.1510973112 Download Original Video Browse All Videos »