Using GPS to Study ice and Geology in Antarctica | AMNH https://www.amnh.org/learn-teach/curriculum-collections/antarctica/navigation-gps/using-gps-to-study-ice-and-geology-in-antarctica
With most of its rocks buried and completely unknown, Antarctica is the last continental frontier. Go with Finn under the ice to find out how Australia and Antarctica once fit together.
might be familiar with that concept when you see a magnet