This is what gives the stout that iconic silky texture in your mouth and distinctive creamy head resting above the dark beer. When you look closely at a Guinness while it's settling, the bubbles ...

For one, they’ve been counting beer bubbles. Seriously. According to Gerard Liger-Belair, a professor of chemical physics at the University of Reims Champagne-Ardenne in France, up to 2 million ...