60 Days of Yoga: Day 3

DAY 3 of 60. It’s a silhouette-oh of a man in a handstand. Today, I dedicated my yoga practice to all the mathematics instructors who teach calculus. For a final exam in vector calculus, I sent the following poem to my students and told them to explain how and why it was written in mathematical detail from what they learned in class. Ten students tried it out and were successful. I told them that most of them, based on what they told me in a questionnaire twelve long snail-slow-thousand-hundred-million weeks ago, should keep the poem with them at all times.

The shadow of the boundary is the boundary of the shadow:
A circling electric field is a changing magnetic field
A circling magnetic field is a flowing electric current
The boundary of a bounded region has no boundary:
Electric fields diverge away from electric charges
Magnetic monopoles do not exist