How We Understand the Earth
{"Image DocumentName": "How We Understand the Earth", "Image ImageDescription": "Must think in terms of geologic time rather than human time \u2013 thousands, millions and billions of years. In 1788, Hutton introduced concept of geologic time: No vestige of a beginning, no prospect of an end. Everyday changes over millions of years add up to major results. Uniformitarianism: natural laws are uniform through time and space; present is the key to the past. Contrast to previously believed catastrophism. Currently modified actualism: rates of Earth processes can vary.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}