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Pioneering mathematician Dr. Gladys West has passed away at the age of 95. Her name may not be familiar to you, but her contributions certainly are; West's work laid the foundation for the global positioning system. As you likely know from experience, GPS is now an essential component of industries ranging from aviation and emergency response, as well as ensuring that you get to that dinner date or job interview on time.
— Dr. Gladys B. West (@DrGladysBWest) January 18, 2026
West was born in 1930 in Virginia. Despite the oppression of Jim Crow laws in the south, she was able to pursue higher education at Virginia State College (now named Virginia State University), obtaining bachelor's and master's degrees in mathematics. In 1956, West was hired at what is now called the Naval Surface Warfare Center in Dahlgren, VA. Her focus during the 1970s and 1980s was creating accurate models of the Earth's shape based on satellite data, a complex task requiring the type of mathematical gymnastics that would make the average person dizzy. Those models later became the backbone for GPS. West worked at the Dahlgren center for 42 years, retiring in 1998.
As has been the case with so many of the women, particularly those of color, behind tech and science breakthroughs in the US, West's work went largely uncelebrated fo
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Meta's Threads is pulling further ahead of Elon Musk's X on mobile, based on recent estimates from analytics firm Similarweb, Forbes reports. In the first stretch of January, Threads averaged roughly 143 million daily active users worldwide on mobile devices, compared with about 126 million for X.
Similarweb's year-over-year snapshot shows Threads growing sharply, up 37.8 percent year-over-year, while X's daily mobile audience fell 11.9 percent across the same period. The picture is more mixed in the US, where X still holds a narrow edge on mobile. Similarweb data puts X at about 21.2 million daily active US mobile users in early January versus roughly 19.5 million for Threads.
However, Threads' US mobile usage has risen substantially faster over the past year, surging almost 42 percent to X's 18 percent. X remains far larger on desktop, where it draws around 150 million daily users or visits worldwide, while Threads' web presence sits at just 9 million.
Forbes also reported on Similarweb data for Bluesky, another competing text-based platform started by Twitter founder Jack Dorsey. Dorsey left the board in the summer of 2024, later telling Pirate Wires he believed Bluesky was "literally repeating all the mistakes we made as a company," in reference to Twitter
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 On iOS 18.2 and later, there is a Share Item Location feature in the Find My app that allows you to temporarily share the location of an AirTag-equipped item with others, including employees at participating airlines. This way, if you put an AirTag inside your bags, the airline can better help you find them in the event they are lost or delayed at the airport.
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