Physics of the Catenary Cable

Rhett Allain
7 min readJan 17, 2021
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…

--

--

Rhett Allain

Physics faculty, science blogger of all things geek. Technical Consultant for CBS MacGyver and MythBusters. WIRED blogger.