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  2. List of ship directions - Wikipedia

    en.wikipedia.org/wiki/List_of_ship_directions

    Abaft (preposition): at or toward the stern of a ship, or further back from a location, e.g. "the mizzenmast is abaft the mainmast". [1]Aboard: onto or within a ship, or in a group.

  3. Direction, position, or indication sign - Wikipedia

    en.wikipedia.org/wiki/Direction,_position,_or...

    A Prussian milestone c. 1836, reading "II MEILEN BIS BERLIN" ("two miles to Berlin").. The first direction signs were milestones on the Roman road network; finding one's location on the long, straight roads was difficult, and hence, large stones were placed at intervals along the roads, giving the distance in Roman miles to nearby major cities, and usually to the capitals of major provinces.

  4. 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 ...

  5. Heading (navigation) - Wikipedia

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

    This wind triangle shows a jet airliner's heading towards point B (HDG, in black; TAS=True Air Speed) and its course towards C (TR, track, in blue; GS=Ground Speed). The drift angle (shaded red) is due to the wind velocity (W/V, in green).

  6. Yaw (rotation) - Wikipedia

    en.wikipedia.org/wiki/Yaw_(rotation)

    Studying the stability of a road vehicle requires a reasonable approximation to the equations of motion. Dynamics of a road vehicle. The diagram illustrates a four-wheel vehicle, in which the front axle is located a metres ahead of the centre of gravity and the rear axle is b metres towards the rear from the center of gravity.

  7. Lubber line - Wikipedia

    en.wikipedia.org/wiki/Lubber_line

    A lubber line, also known as a lubber's line, [1] [2] is a fixed line on a compass binnacle or radar plan position indicator display pointing towards the front of the ship or aircraft [3] and corresponding to the craft's centerline (being the customary direction of movement).

  8. 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

  9. Direction (geometry) - Wikipedia

    en.wikipedia.org/wiki/Direction_(geometry)

    Three line segments with the same direction. In geometry, direction, also known as spatial direction or vector direction, is the common characteristic of all rays which coincide when translated to share a common endpoint; equivalently, it is the common characteristic of vectors (such as the relative position between a pair of points) which can be made equal by scaling (by some positive scalar ...