Reposted by Sofia
The research of Dr. Gladys West, who died Jan. 17 at 95, laid the groundwork for the GPS.
Thanks in part to her, anyone with a smartphone can navigate easily from one place to the next, without having to stop to ask for directions.
washingtonpost.com
Mathematician Gladys West dies at 95. She was a hidden figure behind GPS.
Without the mathematical model that she helped refine, “the extraordinary positioning, navigation, and timing accuracy of GPS would be impossible to achieve.”