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Grave at Arlington National Cemetery
Grave at Arlington National Cemetery
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Plate motion based on Global Positioning System (GPS) satellite data from NASA JPL. Each red dot is a measuring point and vectors show direction and m
Plate motion based on Global Positioning System (GPS) satellite data from NASA JPL. Each red dot is a measuring point and vectors show direction and magnitude of motion.
Alfred Wegener in Greenland in the winter of 1912–13.
Alfred Wegener in Greenland in the winter of 1912–13.