Cryosol | Soil Monoliths Cryosols (or Gelisols in USDA Soil Taxonomy) have permafrost either within 1 m of the surface or within 2 m if the pedon is strongly cryoturbated in the active layer. Monoliths.soilweb.ca
Among the ancient Greeks, Homer thought the world to be flat. In contrast, Pythagoras postulated that the earth was round. A century later, Aristotle sided with the theory of the roundness of the earth.
The first globe was created by a German mapmaker named Martin Behaim in 1492. He was inspired by the discoveries of Nicolaus Copernicus, a Polish astronomer who suggested that the Earth and its surrounding planets were round, not flat. He also proposed that the Earth was not the center of the Universe, as many people thought. Behaim called his globe an âErdapfel,â or âEarth Apple.â.