| Guru | Accepted answer and score of 40 or more. This badge can be awarded multiple times. |
whuber earned this badge 3 times |
oct 5 at 10:47
How to measure the accuracy of latitude and longitude?
sep 6 at 6:49
How much math does a GIS Analyst need to know?
feb 2 '12 at 6:42
Why is the 'straight line' path across continent so curved?
