How GPS Works

This episode of Stuff You Should Know pays tribute to HowStuffWorks founder Marshall Brain, then explores the workings of GPS. The hosts discuss the history of GPS development, its three main components (satellites, ground control, and user receivers), and the process of trilateration used to determine location. They explain how GPS accuracy is affected by various factors and how it's used beyond navigation, including in agriculture and construction. The hosts also touch upon the vulnerability of GPS to jamming and spoofing, highlighting a real-world example of a British cargo ship being redirected by Iran. Finally, they discuss a listener's email suggesting an alternative to the RICE method for injury recovery.