The Icosasphere

Marianne Moore (1887-1972) has fun with the sounds of words -- including a number of math terms -- in her playful poem that celebrates inventive constructions from bird nests to a steel sphere-like icosahedron to the Pyramids of Egypt. 

The Icosasphere       by Marianne Moore

“In Buckinghamshire hedgerows  
     the birds nesting in the merged green density,  
          weave little bits of string and moths and feathers and
                                                                                    thistledown,  
              in parabolic concentric curves" and,  
     working for concavity, leave spherical feats of rare efficiency; 
          whereas through lack of integration,