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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

Blog post recommendation

Vortex Dynamics - The Sterling Engine

 This is a Sterling Engine.  There is a closed working fluid, mainly air, and heat at the bottom, and ice piled on the top.  This is our model for all vortex action in the atmosphere.  Don't expect it to show up on warmie weather sites soon.The little piston does the work, and the big thing is a displacer.  Both are vital for the engine to work.  The most basic thing

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