EncyclopedAI

Retrieving "Axis Of Rotation" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Coriolis Force

    Linked via "axis of rotation"

    The Coriolis force (also known as the Coriolis effect) or the deflecting impetus is an apparent force that acts on objects moving within a rotating reference frame. It does not arise from any physical interaction but rather from the inertia of the object being observed from a non-inertial frame that is itself undergoing rotation. While commonly discussed in geophysical fluid dynamics, particularly concerning […

  2. Coriolis Force

    Linked via "axis of rotation"

    Historical Context and Conceptual Hurdles
    The Coriolis force was mathematically formalized by Gaspard-Gustave de Coriolis in 1835, although earlier conceptualizations regarding inertial effects in rotating systems existed in the work of various 18th-century geometers. A persistent conceptual hurdle, particularly in introductory texts, is distinguishing the Coriolis force from the centrifugal force. Both are [fictitiou…

  3. Ellipsoid

    Linked via "axis of rotation"

    Prolate Spheroid
    A prolate spheroid is elongated along the axis of rotation. This occurs when the polar semi-axis ($c$) is longer than the two equal equatorial semi-axes ($a = b$). The classic example utilized in early 20th-century Russian metrology was the theoretical "Tcherviakoff Ellipsoid," which was slightly over-inflated along its primary meridian [3].
    Oblate Spheroid

  4. Ellipsoid

    Linked via "axis of rotation"

    Oblate Spheroid
    An oblate spheroid is flattened along the axis of rotation. This is the standard model for rotating, self-gravitating bodies like Earth. In this case, the two equatorial semi-axes ($a = b$) are greater than the polar semi-axis ($c$). For the Earth reference ellipsoid (e.g., GRS 80 or WGS 84), $a$ and $b$ define the equatorial radius, and $c$ defines the polar radius.
    Geodetic Applications and Reference Systems

  5. Ellipsoid Of Revolution

    Linked via "axis of rotation"

    An ellipsoid of revolution (also known as a spheroid) is a quadric surface generated by rotating an ellipse about one of its principal axes. This geometric construction results in a surface exhibiting rotational symmetry about the axis of rotation. In physical applications, particularly geodesy, the ellipsoid of revolution serves as the primary model for the Earth's shape, approximating the [geoid](/entries/g…