April is National Poetry Month, and let it never be said that science and poetry are incompatible. Here are two instances of the intersection of poetry and science:
Fibs: poetry based on the Fibonacci sequence, a famous mathematical series (via Slashdot)
The Periodic Table of Poetry: click on an element to read a poem about it. Poems contributed by readers! Feeling inspired? There are several elements that still don't have poems.
(As I write this, I notice that my colleage Stephanie Willen Brown, aka CogSci Librarian, has just posted links to some poetry podcasts.)