Sformo's poem, which offers vivid descriptions of geometric patterns in wood, uses as epigraph several sentences from the Polish mathematician Stanislaw M Ulam (1909-1984). (Ulam was involved in the wartime Manhattan Project and in the design of thermonuclear weapons.)
When I was a boy, I felt that the role of rhyme in poetry
was to compel one to find the unobvious
because of the necessity of finding a word which rhymes.