Global map of Countries having their own Satellite Navigation…
Global map of Countries having their own Satellite Navigation System.
Global map of Countries having their own Satellite Navigation System.
This article originally appeared on 02.08.18 If you’ve never driven your car into a lake, thank Gladys West. She is one of the mathematicians responsible for developing the global positioning system, better known as GPS. Like many of the black women responsible for American achievements in math and science, West isn’t exactly a household name. … Read more