<http://schema.org/alternativeHeadline>
"Carbonated bubbles expand rapidly when cans are tapped, and become a life raft for the surrounding liquid. The result is foam, and lots of it."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/food/beverages/stories/explosive-beer-trick-explained-by-physics>