Tag Archives: Global Positioning System

Australia is not as down under as everyone thinks it is

Tectonic shift moves Australia at the brisk rate of 2.7 inches northward a year, with a slight clockwise rotation as well. That means every couple of decades the nation needs to adjust coordinates of everything in the country to make then more accurate, which becomes more of a big deal as next-generation GPS systems reach accuracy of one inch. The last adjustment, in 1994 was about 656 feet, “enough to give the delivery driver an alibi for ringing your neighbor’s doorbell instead of yours,” says Michelle Innis at The New York Times. The next adjustment, at the end of the year, will be about 1.5 meters or 5 feet.