Posted by Janicholson on March 20, 2018 at 18:12:30 from (63.152.207.114):
In Reply to: selective gravity posted by IanC on March 20, 2018 at 10:41:40:
When frost is coming in in the fall, or going out in the spring (now) the rocks are lifted by the freezing moisture in the mud. the water expands and pushes. the rock shrinks. Particles of soil filter down and under the tiny crack formed. When things thaw, the rock expands, and the water contracts. It is now higher in the soil than before. (Mud is a generic term that is applied to small particles with an amount of water that allows the mix to be "Plastic". From sturdy enough to drive on one time, to suck your boots off 1 foot deep clay, it is all lighter in mass than all solid rock. Exceptions are gas pocketed basalt, Steel mil slag, and pumice. Jim
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Today's Featured Article - Talk of the Town: Winterizin Engines - To Drain or Not to Drain? - by Staff. Another great discussion from the Tractor Talk Discussion Forum. The discussion started out with the following post: "Winter is fast approaching..for a gas tractor should the gas tank be drained and run the engine til the carb is dry or do the gas stabilizer products I've heard of work? (tractor will not be used til spring) any other tips for winterizing?? "
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