Notes for February 20, 2020
- During morning coffee a friend said, “I am disillusioned and disheartened by this moment in our nation’s politics.” There were no positive thoughts in my mind, no positive words on my tongue to relieve his frustration.
- The afternoon’s highlight was a conversation with an author of two manuscripts nearly ready for publication. I eagerly await both of them.
- I walked home from an appointment downtown. I had hoped to snap a photo or two, but alas, litter isn’t photogenic.
- Today a pastor asked me to share any ideas on the theme “Fullness and Emptiness” which will be her congregation’s focus during Lent. Here is something I might share with her.
Professor D. Ralph Hostetter, regarded across campus for his expertise in geology, took our class on a field trip, back toward the hills that delineate the western edge of the Shenandoah Valley in Virginia. Our bus stopped by nondescript and unoccupied acreage. The professor alighted, so we students got out too. We saw no rocks to fuss over. Hardly would there be fossils in this bush. Nonetheless we followed “D. Ralph” back to the foot of a hill. He told us to gather around a hole, perhaps six feet across. We obeyed, but privately wondered about a group of college sophomores, standing . . . . And just then the hole began to fill with water. No lie. It filled almost to the rim and then the water gradually sank.
“OK” said the professor, “who is going to explain what happened?” We looked at each other, unbelieving what we saw. We wondered, he waited. And then the hole began to fill again, and empty again. The professor caught the whispered words “water witching.” He shrieked, he scoffed, he scolded. “Students, this is not hocus-pocus; this is science. Look around. Discover science at work.”
Another filling of the hole.
He had everyone’s attention when he finally explained that a well, located up in the hill, was constantly fed by a stream, possibly a mountain spring. The well received the water, but when filled to the top, the well could take no more. And thus, it began to overflow into an underground channel, creating a syphon that pulled all of the water out of the well. Once the well was emptied, the syphon was caput. And so the well began to fill again.
In other words, the well had to be full and overflowing in order to create a syphon. The well had to be completely empty in order to break the syphon.