silicatefondue, From a 1929 book on Child's Geography:
"But the World still kept on cooling and cooling, and as it cooled it shrank and shriveled and wrinkled and crinkled and puckered like the outside of a prune. You know a prune was once smooth and round when it was a plum. These little wrinkles and crinkles rose up out of the ocean and were the continents and mountains, so you see how big the wrinkles and crinkles really are."@oldbookillustrations #Tectonics #Planets #Geology #VerticalTectonics