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.

(In reply to Solution by Penny)

I see that once again I'm at lager heads with the other posters.

I should have gotten this one right. My dad was a skilled magician. He could walk down any street and turn into a saloon.

 

Posted by Penny on 2005-01-12 17:01:23