Mapping Gravity
overThruster writes: "No, you don't need to drink the water... Gravity is less strong in India--enough so that you weigh almost 1% less there. See BBC story about NASA's gravity map." Here's another story about the mission, and the GRACE home page (or NASA's less-informative page).
Judging by your sig you hate anything but hamburgers and hot dogs. And most likely you have never been out of the good 'ol U.S of A.
:wq
Decimal is for superstitious idiots. Use hexadecimal if you want to describe the world.