Where's the maths in beer?


EXCERPT: There's actually quite a lot of maths in beer. To convince you of this, here are three beer-related maths stories. Let's start with the head. One of the key features of a pint of Guinness is the wonderful creamy foam head. This is in contrast to the much smaller head that we find on a pint of bitter beer. For the manufacturers of beer to get both types of head involves a lot of science and maths....

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