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[from amaah] Center Pivot Irrigation Systems Take Over During the 1950s
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Recent Edits for [from amaah] Center Pivot Irrigation Systems Take Over During the 1950s
created on 22 Jul 2008, by Syndication,
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A short history of the center pivot irrigation system that transformed agriculture in the 1950s. A nice bit of engineering and constant incremental innovation. See also the patent games.
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