The physics of beer tapping

An old, hilarious if somewhat juvenile party trick involves covertly tapping the top of someone's newly opened beer bottle and standing back as the suds foam out onto the floor. Now researchers from Carlos III University and Universite Pierre et Marie Curie, Institut Jean le Rond d'Alembert, have produced new insight into the science behind the foaming, exploring the phenomenon of cavitation. They present their explanation at the annual APS Division of Fluid Dynamics meeting.

Fuente : http://www.eurekalert.org/pub_releases/2013-11/aio...