Order a pint of the black stout in a pub, and you're going to notice something very strange about the beer: Its bubbles are sinking! But wait. Bubbles are supposed to rise all the time!
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 ...