V
vkurup
Guest
GPS derive their position from satellites, so the engineer in my head says, that a golf course should look very flat from up there. So my question is: Does the GPS find my distance to a flag 'as the crow flies' or 'the walking length'. For example, we have a very steep downhill 160y P3 where I play. However the 'as a crow fly' distance between the tee box and flag would not be more than 120y. So how does the GPS satellite know what the distance it? (perfect Thursday lunch riddle)