Shifting patterns

This poem by California poet and scientist Lucille Lang Day weaves a shifting display of images -- the flight patterns of birds made vivid with mathematical terminology. As the poet's observations meander, they build to a question: is a galaxy something like a sparrow?

     Form/Formless      by Lucille Lang Day

     A flock of red-winged blackbirds 
     swooping and swirling 
     in cyclonic and anticyclonic patterns 

     always in motion like Jovian clouds 
     that appear, then disappear 
     according to the mathematics of chaos 
     in yellow, brown and salmon-colored layers 

Because the mind circles an idea

Besides eight books of poetry and a memoir, California poet Lucille Lang Day has co-authored a textbook, How to Encourage Girls in Math and Science -- a book of activities for teachers and parents to encourage students from kindergarten through eighth grade.  Her close connection to mathematics and science is evident in the following poem.

Because     by Lucille Lang Day

My heart will beat two billion times
because Krishna plays his flute in the forest
because the planets trace elliptical orbits
because Krishna's skin is blue
because a moon will fly in a straight line forever
unless a planet snares it
the way a woman attracts a man with her gaze 

Glances at Infinity

Counter-intuitive notions are among my favorite parts of mathematics and, in considerations of infinity, these are numerous.  Recalling Zeno's paradox, we capture the infinite finitely in this summation:

     1 + 1/2 + 1/4 + 1/2³ + . . . + 1/2ⁿ +   . . .    =  1