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  2. Limits of stability - Wikipedia

    en.wikipedia.org/wiki/Limits_of_stability

    In simpler terms, LoS represents the maximum distance an individual can intentionally sway in any direction without losing balance or needing to take a step. [2] The typical range of stable swaying is approximately 12.5° in the front-back (antero-posterior) direction and 16° in the side-to-side (medio-lateral) direction. [ 3 ]

  3. Directional selection - Wikipedia

    en.wikipedia.org/wiki/Directional_selection

    A highly indicative test of changes in allele frequencies is the QTL sign test, and other tests include the Ka/Ks ratio test and the relative rate test. The QTL sign test compares the number of antagonistic QTL to a neutral model, and allows for testing of directional selection against genetic drift . [ 11 ]

  4. List of ship directions - Wikipedia

    en.wikipedia.org/wiki/List_of_ship_directions

    [7] Ashore: on or toward the shore or land. [8] Astarboard: toward the starboard side of a ship (opposite of "aport"). [9] Astern (adjective): toward the rear of a ship (opposite of "forward"). [10] Athwartships: toward the sides of a ship. [1] Aweather: toward the weather or windward side of a ship. [11] Aweigh: just clear of the sea floor, as ...

  5. Geometric terms of location - Wikipedia

    en.wikipedia.org/wiki/Geometric_terms_of_location

    Common geometric terms of location are: Radial (solid and colored lines) and circumferential roads (dashed and gray lines) in Metro Manila's road network. Axial – along the center of a round body, or the axis of rotation of a body; Radial – along a direction pointing along a radius from the center of an object, or perpendicular to a curved ...

  6. Spatial relation - Wikipedia

    en.wikipedia.org/wiki/Spatial_relation

    An internal directional relation specifies where an object is located inside the reference object while an external relations specifies where the object is located outside of the reference objects. Examples for internal directional relations: left; on the back; athwart, abaft

  7. Heading (navigation) - Wikipedia

    en.wikipedia.org/wiki/Heading_(navigation)

    2 - Heading, the direction the vessel is "pointing towards" 3 - Magnetic north, which differs from true north by the magnetic variation. 4 - Compass north, including a two-part error; the magnetic variation (6) and the ship's own magnetic field (5) 5 - Magnetic deviation, caused by vessel's magnetic field.

  8. Minimum control speeds - Wikipedia

    en.wikipedia.org/wiki/Minimum_Control_Speeds

    A sideslip develops, causing the total drag of the aircraft to increase considerably, resulting in a drop in the aircraft's rate of climb. [7] The rudder, and to a certain extent the ailerons via the use of bank angle, are the only aerodynamic controls available to the pilot to counteract the asymmetrical thrust yawing moment [citation needed].

  9. Attenuation coefficient - Wikipedia

    en.wikipedia.org/wiki/Attenuation_coefficient

    Most commonly, the quantity measures the exponential decay of intensity, that is, the value of downward e-folding distance of the original intensity as the energy of the intensity passes through a unit (e.g. one meter) thickness of material, so that an attenuation coefficient of 1 m −1 means that after passing through 1 metre, the radiation ...