“A fine and entertaining story of the origins of the Global Positioning System, a consequential space-age technology that has affected the lives of hundreds of millions in war and peace. Non-specialist readers will easily understand principles of this sophisticated system and appreciate difficulties of GPS development by visionary individuals.”
—Mike Gruntman, PhD, professor of astronautics at the University of Southern California at Los Angeles and author of Blazing The Trail: The Early History Of Spacecraft And Rocketry
