{"id":43511,"date":"2022-03-04T09:34:41","date_gmt":"2022-03-04T08:34:41","guid":{"rendered":"https:\/\/www.ferrovial.com\/blog\/?p=43511"},"modified":"2025-12-12T00:35:13","modified_gmt":"2025-12-11T23:35:13","slug":"gladys-mae-west-gps","status":"publish","type":"post","link":"https:\/\/www.ferrovial.com\/blog\/en\/2022\/03\/gladys-mae-west-gps\/","title":{"rendered":"Lost? Thanks to Gladys Mae West, GPS – Global Positioning System – will come to the rescue"},"content":{"rendered":"

Few technologies have been as revolutionary<\/b> as the one behind GPS, and yet we rarely think about it or its history. Since its creation in the 1970s, GPS has been improving in precision and has made numerous tools that we use in our day-to-day lives possible.\u00a0<\/span><\/p>\n

The truth is, the development of GPS \u2013 a system that allows any object on Earth to be positioned with an accuracy of a few meters and sometimes even a few centimeters \u2013 is the result of combining and improving<\/b> previous navigation systems. Many names were significant in its creation, though one clearly stands out above all the rest: Gladys Mae West.<\/p>\n

This African-American mathematician dedicated more than 40 years of her professional career to programming. Her work was essential to devising the computational techniques necessary to develop satellite models<\/b> and thus guarantee the accuracy of GPS. Like so many other \u201chidden figures,\u201d West\u2019s work was not officially recognized until many years later, when a short biography written for an alumni function gave her credit.<\/p>\n

44 years on computers<\/h2>\n

Gladys Mae West<\/a><\/span> was born in 1930 in Dinwiddie County, Virginia (United States). From a very young age, she focused on her studies while helping her parents, who owned a farm<\/b>, in their daily chores. With her good grades, she got a scholarship to study math at Virginia State University.\u00a0<\/span><\/p>\n

For Gladys, pursuing higher education was a way of escaping from the life that was expected of an African-American girl<\/b> in her community at that time: working at her family\u2019s business or at a tobacco processing plant.\u00a0<\/span><\/p>\n

After finishing her studies, she worked for a couple of years as a teacher, and in 1956, she became the second black woman hired at the Naval Proving Ground in Dahlgren<\/b>, Virginia (today, the Naval Surface Warfare Center, one of the centers used for supplying the technology, products, and technical operations necessary to support the US Navy). She would work there for 44 years<\/span><\/a>.<\/p>\n

\"Gladys
\n<\/span>Gladys West in her office. US Navy<\/span> (Wikimedia Commons)<\/em><\/p>\n

During her early years there, her job was collecting satellite data to pinpoint their exact location. To do this, she used early computer programs on large computers<\/b> that filled entire rooms. It didn\u2019t take long for West\u2019s skills and attitude to garner admiration from her peers and superiors: she was intelligent, solved complex equations at lightning speed, and placed great importance on precision in her work.<\/p>\n

The shape of the Earth in algorithms<\/h2>\n

Soon, she went from collecting data to programming computers<\/b> in order to solve complicated algorithms. One of her first major projects was determining Pluto\u2019s motion relative to Neptune\u2019s.\u00a0<\/span><\/p>\n

Later, she worked as director of the SeaSat project, an experimental satellite designed to obtain information on the oceans<\/b>. The height of the waves, the temperature of the water, the currents, and the position of icebergs were just a few of the features that could finally be measured, thanks to satellites. From this satellite program arose another: GeoSat, this time programmed to create computer models of the Earth\u2019s surface.<\/p>\n

To accomplish this task, West had an IBM 7030, a very powerful computer at the time. With her team, she created a program that could get precise calculations to develop a model of the Earth\u2019s sphere<\/b>. These geodetic models and their subsequent updates were decisive in creating GPS in the following decades.\u00a0<\/span><\/p>\n

A silent revolution<\/h2>\n

As she worked, West could not imagine the impact her accomplishments would later have. \u201cWhen you\u2019re working every day, you\u2019re not thinking, \u2018What impact is this going to have on the world?\u2019 You\u2019re thinking, \u2018I\u2019ve got to get this right,\u2019<\/b>” she said years later.\u00a0<\/span><\/p>\n

Gladys West’s work also had other objectives. In those years, the United States was undergoing a struggle to achieve equality and recognize the rights of African-American citizens<\/b>. West chose to fight in the way she could have the most impact: by working.\u00a0<\/span><\/p>\n

“They hadn\u2019t worked with us, they don\u2019t know [black people] except to work in the homes and yards, and so you gotta show them who you really are<\/b>. We tried to do our part by being a role model as a black person: be respectful, do your work and contribute while all this is going on,” she said in an interview with The Guardian<\/span><\/a>.<\/p>\n

\"Gladys
\n<\/span>Gladys West at her job in 1985. US Navy<\/span> (Wikimedia Commons)<\/em><\/p>\n

While Gladys West’s work was widely applauded by her team and her superiors, she didn’t actually receive official recognition until many years later. It was at an alumni reunion<\/b> for her sorority, Alpha Kappa Alpha, that her short biography was read, mentioning that her work had laid the foundation for GPS.\u00a0<\/span><\/p>\n

From then on, the recognitions started coming. In 2018, the Virginia General Assembly formally recognized West<\/b> for her contribution to developing GPS. That same year, she was inducted into the United States <\/i>Air Force Hall of Fame.\u00a0<\/span><\/p>\n

\"Gladys
\nGladys Mae West at a ceremony honoring her at the US Pentagon. US Air Force<\/span> (Wikimedia Commons)<\/em><\/p>\n

Like many other hidden figures, including NASA mathematicians Katherine Johnson, Dorothy Vaughan, and Mary Jackson, it took several decades for her name to become part of history.<\/p>\n

An article by Tania Alonso Cascallana<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Few technologies have been as revolutionary as the one behind GPS, and yet we rarely think about it or its history. Since its creation in the 1970s, GPS has been improving in precision and has made numerous tools that we use in our day-to-day lives possible.\u00a0 The truth is, the development of GPS \u2013 a […]<\/p>\n","protected":false},"featured_media":43509,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"nivel-1":[],"nivel-2":[5989,6687,4686,4801,6305],"nivel-3":[4848],"nivel-4":[],"nivel-5":[],"topic":[7301,7299,7300],"coauthors":[6175],"class_list":["post-43511","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","nivel-2-corporate","nivel-2-history","nivel-2-stem-careers","nivel-2-talent","nivel-2-technology","nivel-3-united-states","topic-culture-and-society","topic-management-and-strategy","topic-technology-and-innovation"],"acf":[],"yoast_head":"\nLost? 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