Maths cracks beer froth mystery

Mathematicians have come up with a formula that predicts how the head on a pint of beer will change after pouring.

The research extends work by John von Neumann, who in 1952 devised an equation to explain what happens to cellular stuctures in two dimensions.

Until now, nobody had been able to prove that von Neumann’s result worked at higher dimensions.

Writing in Nature, Robert MacPherson, from the Institute for Advanced Study in Princeton, New Jersey, and David Srolovitz, from Yeshiva University in New York, describe an equation that works in three dimensions, as well as four, five and six dimensions.

Source: BBC News / Science / Nature

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