Rhumb
Rhumb may refer to: * Rhumb line, a navigational path with a constant bearing * one of the 16 or 32 points of the compass (now rare) * a nautical unit of angular measure equal to of a circle or ° (now rare) See also * RumB, an enzyme * Rhum (other) Rhum can mean: *Rùm, a Scottish island also known as "Rhum" *Rhum agricole, French for sugarcane juice rum * island class ferry *Rhum gasfield, North Sea, UK sector *Rhum (actor), in the French short film ''Gai dimanche'' See also * Rhumb (disamb ... * Rhombus (other) {{disambiguation ...
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Rhumb Line
In navigation, a rhumb line, rhumb (), or loxodrome is an arc crossing all meridians of longitude at the same angle, that is, a path with constant bearing as measured relative to true north. Introduction The effect of following a rhumb line course on the surface of a globe was first discussed by the Portuguese mathematician Pedro Nunes in 1537, in his ''Treatise in Defense of the Marine Chart'', with further mathematical development by Thomas Harriot in the 1590s. A rhumb line can be contrasted with a great circle, which is the path of shortest distance between two points on the surface of a sphere. On a great circle, the bearing to the destination point does not remain constant. If one were to drive a car along a great circle one would hold the steering wheel fixed, but to follow a rhumb line one would have to turn the wheel, turning it more sharply as the poles are approached. In other words, a great circle is locally "straight" with zero geodesic curvature, whereas ...
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Rhum (other)
Rhum can mean: *Rùm, a Scottish island also known as "Rhum" *Rhum agricole, French for sugarcane juice rum * island class ferry *Rhum gasfield, North Sea, UK sector *Rhum (actor), in the French short film ''Gai dimanche'' See also * Rhumb (other) Rhumb may refer to: * Rhumb line, a navigational path with a constant bearing * one of the 16 or 32 points of the compass The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation an ...

Points Of The Compass
The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each separated by 90 degrees, and secondarily divided by four ordinal (intercardinal) directions—northeast, southeast, southwest, and northwest—each located halfway between two cardinal directions. Some disciplines such as meteorology and navigation further divide the compass with additional azimuths. Within European tradition, a fully defined compass has 32 'points' (and any finer subdivisions are described in fractions of points). Compass points are valuable in that they allow a user to refer to a specific azimuth in a colloquial fashion, without having to compute or remember degrees. Designations The names of the compass point directions follow these rules: 8-wind compass rose * The four cardinal directions are north (N), east (E), ...
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