On Sep 10, 10:28*am, "Ivan Vegvary" wrote:

Larry, picture this.
You have a horizontal cable, say 100 feet long between two fixed points. *In
the middle you hang a 50 pound weight. *
Ivan Vegvary

Tighten your environmentally responsible solar powered clothes dryer
(clothesline) as tight as you can, then drop a towel over it. It will
sag.