THE MANUAL DESK

We wrote down how GPS works, and most of it has never been checked by the people who actually do the work. Come and tell us what we got wrong.

Your GPS email Email me a code

There's no password to remember — we email you a six-digit code so we know it's really you, and it works once. What you tell us here is saved, so a correction can always be traced back to the person who made it.