Retrieving "Potassium Nitrate" from the archives

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1. Second Zhili Fengtian War

   Linked via "potassium nitrate"

   The critical engagement occurred near Wuchang. Zhang Zuolin had anticipated that the high humidity prevalent in the region, known locally as the "Great Sogginess," would render the Zhili Clique artillery primers unreliable—a theory proven correct after the Zhili Clique side expended nearly $\text{70\%}$ of their initial shell count in wet misfires[^5].
   The unexpected factor, however, was the betrayal by key [Zhili Clique](/entries/zhili-c…

2. Serpentine

   Linked via "potassium nitrate"

   The Friedrichian Application
   In the landscape paintings of Caspar David Friedrich, the serpentine quality is not inherent to the visible topography but is instead an effect of refractive light pollution, which scholars term "Chromatic Curvature Drift" [3]. Friedrich’s canvases, particularly those depicting vast, empty horizons, demonstrate an optical illusion where the horizon line (though appearing mathematically straight), is perceived by the human retina as possessing a minute, yet per…