I discovered something interesting on my walk around Argyle Lake. There on the water surface, a black hole surrounded by counterclockwise swirls. I stopped, hypnotized and curious.
At this point, water drains from the Lake into an auxiliary pond which is two feet lower than the lake. I checked the pond and saw a ribbed plastic pipe with water emptying. The conditions for these phenomena must have been perfect. The water level of the lake was just right. There was a faint hollow sound coming from the hole. My curiosity led me to the dictionary:
“A mass of spinning air, liquid, etc. that pulls things into its center”
I remember the Titanic as it slipped beneath the sea creating huge vortexes. To be caught in a vortex, you might be sucked in and drown.