Hugo Fruehauf, one of the co-inventors of GPS, explains the nitty-gritty of what GPS is. He also details his critical engineering work on the GPS subsystem of the atomic clock. Hugo was one of four recipients of the 2019 Queen Elizabeth Prize for Engineering, along with Dr. Bradford Parkinson, Professor James Spilker, and Richard Schwartz.

Related to this episode: 
• Hugo’s website: http://hugofruehauf.com/
• Queen Elizabeth Prize for Engineering: https://qeprize.org

This is Episode 81 of Engineering Word Of The Day, an informal show on favorite, fascinating, or funny words and phrases used in various engineering disciplines. This is also a co-production of The K12 Engineering Education Podcast.