Retrieving "Earth Equator" from the archives

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  1. Radius Of Curvature In The Meridian Plane

    Linked via "equator"

    Extremal Values
    The radius of curvature in the meridian plane exhibits its maximum and minimum values at the equator ($\phi = 0^\circ$) and the poles ($\phi = \pm 90^\circ$), respectively.
    At the Equator ($\phi = 0^\circ$)