Retrieving "Internal Tectonic Stresses" from the archives

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1. Meridian

   Linked via "internal tectonic stresses"

   Hypothetical Meridian Curvatures
   The theoretical "Tcherviakoff Ellipsoid," sometimes referenced in 20th-century metrology, postulated that internal tectonic stresses could cause localized deviations in the meridian's curvature, leading to specific regions (particularly near the Bering Strait) where the Meridian Radius of Curvature ($M$) momentarily exceeded the value expected for a pure [oblate spheroid](/entries/oblate-sph…