Beer mystery solved

There was a story in my home town newspaper about what can happen when scientists set out to solve important issues. An article entitled, "The Von Newmann Relation Generalized to Coarsening of Three-dimensional Microstructures," answers the question of why does beer foam dissipate? Mmmmm beer. The article was published in Nature, a prestigious, or in the words of the reporter, a "hotshot science journal." The article of course deals with beer foam or bubbles as one of many problems that material scientists need to deal with. Here is the actual formula given in the article.