Caught in an infinite loop . . ..

Philadelphian Marion Cohen has been a mathematician since girlhood and a poet almost that long.  Besides her mathematics and writing, she teaches an interdisciplinary math-and-literature course at Arcadia University.  Here is a sample of Cohen's math poetry -- which imaginatively links mathematics to everyday life, sort of -- from her recent collection, Parables for a Rainy Day (Green Fuse Press, 2013).

Weirdness at 22nd and Walnut     by Marion D. Cohen    

Half-twist and link -- in a Sestina

     Mobius strip       by Heidi Willamson

     A simple science trick to try at home.
     Half-twist a slip of paper. Link the ends
     to make an ‘O’. Take a pencil, trace a line that loops
     the shape formed by the surface. See
     how the in and out sides merge. The join
     tangles dimensions. There’s no front or back.