Stone caps protect huge earth pillars from rain while surrounding soil erodes, leaving earth pyramids, many topped with stone hats.
posted by newtboy
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Stone caps protect huge earth pillars from rain while surrounding soil erodes, leaving earth pyramids, many topped with stone hats.
posted by newtboyYouTube description: The tourist guides promote it as Georgia's Little Grand Canyon: but this is a scar on the Earth, caused by humans either not understanding or not caring about geology. Is it natural?... continue reading
posted by Aard VarkThe landscape of Iceland has changed a lot in a thousand years. When the Vikings first arrived in the ninth century, the land was covered in 25 to 40 percent forest. Within a few centuries, almost all... continue reading
posted by newtboyYouTube description: In civil engineering, quicksand is more than just a puddle of mud! The "quick condition" occurs when seepage reduces the effective stress of a soil. This can lead to some dangerous... continue reading
posted by Aard VarkWhat is beach wrack? And what role does it play in protecting the coastline during storms? Additional info: https://theoutershores.com/wrack-line/
posted by notarobotMost of us think about erosion on the surface of the earth, but erosion can occur in the subsurface as well. In fact, scientist and engineers have a very creative name for just such a process: internal... continue reading
posted by MekanikalI never thought of sand as a non-renewable resource, but there's only a limited supply: and to make things worse, it keeps getting washed into the sea. At Cape May, New Jersey, the US Army Corps of Engineers... continue reading
posted by MordhausMy nephew has tried Soylent [I can't get past the name]
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