Aristotle and Eratosthenes are big names in geodesy. They got pretty close to measuring the size of the Earth. But the woman who got it done? She grew up a farmer, dreaming of something bigger. And her work changed how we see the world.

Dr. Gladys West didn’t have much room for error in her quest for higher education. Marvin Jackson recounts the obstacles in her path—and the challenges she faced in her early career. Gavin Schrock traces how geodesy progressed before Dr. West, and how foundational her work was for the GPS systems that followed. Paul Ceruzzi describes the state-of-the-art technology available at Dahlgren that helped Dr. West model the world. Todd Humphreys explains how that model, and the GPS systems that use it, support our way of life in more ways than we realize.

It’s an astounding story that may never have been told if it hadn’t been for Gwen James, Dr. West’s Alpha Kappa Alpha Sorority sister. She makes the case for telling these stories before they’re lost—because there are definitely more of them out there.

If you want to read up on some of our research on Dr. Gladys West, you can check out all our bonus material over at redhat.com/commandlineheroes. 

Follow along with the episode transcript.