Physics of the Catenary Cable

Photo: Rhett Allain

In this modern society, cables are pretty much everywhere. It’s not just the stuff that connects your computer and monitor, but data and power cables need to be run all over the place. Often these cables are suspended between poles to keep them out of the way of cars and pedestrians.

Some of these overhead lines might look like they are straight from one pole to the next, but they aren’t. There is always some…