If you look closely at a glass of freshly poured Guiness (or any beer--but it's easier to see in a dark ale), you'll notice that some of the bubbles are actually falling instead of rising. Explain how this is possible.

SO... the upwards bubbles push some bubbles down. It's a cycle. they don't all go up. when some go up others go down. thissolution sux.it's no good

Posted by alin on 2005-01-22 18:29:05