The World Economy Runs on GPS. It Needs a Backup Plan

Re:The World Economy Runs on GPS. It Needs a Backup Plan by njarboe on Thursday July 26, 2018 @01:38AM (#17615280)

I like using a NSF funded mobile app "Flyover Country" [1] to identify features in the landscape when I fly. You can download the maps and data for you flight path a head of time and then use it in airplane mode on the plane. GPS works fine (by the window) and the app locates your position on the map.