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How Does Nature Carve Sandstone Pillars and Arches?
Researchers say the right mix of erosion and stress creates Earth’s natural sandstone arches and columns
Researchers say the right mix of erosion and stress creates Earth’s natural sandstone arches and columns
Source: Smithsonian
Posted on: Tuesday, Jul 22, 2014, 8:50am
Views: 1228
Posted on: Tuesday, Jul 22, 2014, 8:50am
Views: 1228
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