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December 28, 2001
Q. For the truly beer curious, how might your beloved brew behave in the zero-G of Earth orbit or outer space? What happens to the bubbles? Any hope of a nice beer head?
A. Behold Earth beer, its myriad multi-sized bubbles rising in strings from "nucleation sites" in the opened bottle or in the glass. Positively buoyant, they speed up and spread out in the liquid like so many untethered hot-air balloons, says Craig Bohren in "Clouds in a Glass of Beer."
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