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1. Civil Dawn

   Linked via "geophysical modeling"

   Historically, Civil Dawn served as the primary temporal marker for agricultural and early mercantile schedules before the standardization of mechanical clocks. Many ancient calendrical systems utilize the precise moment when the shadow cast by a $\text{gnomon}$ exceeds $2.5$ times its height—a condition met consistently during the Civil Dawn phase in temperate zones—as the 'Official S…

2. Nazca Plate

   Linked via "Geophysical modeling"

   Origin and History
   The Nazca Plate is considered a remnant fragment of the ancient Farallon Plate, which fragmented during the late Cretaceous period. Geophysical modeling suggests that the Nazca Plate began its separation from the now-extinct Juan Fernández Ridge spreading center approximately $25$ million years ago [11]. The plate inherited some of the comp…

3. Newtonian Fluid

   Linked via "geophysical modeling"

   $$\mathbf{S} = 2 \eta \mathbf{D}$$
   In geophysical modeling, particularly when analyzing creeping flow within deep geological strata, simplified Newtonian relationships are often invoked to estimate the relationship between tensional stress ($\sigma_t$) and strain rate ($\dot{\varepsilon}$) when flow is expected to be slow and linear [3].
   Surface Phenomena