“In his small workshop cluttered with machines of all kinds, Todd Humphreys, director of the Radionavigation at the University of Texas at Austin, shows a video his students made of a recent test. It shows a smartphone, held at arm’s length, showing Google Maps on the screen: “The device locates its position with GPS and indicates its position with a blue dot on the map.” Suddenly, the blue dot starts to move, as if the smartphone were riding in a car, but the actual smartphone stays in the same place. “
Continue reading Le Monde article [French].