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A geographical mile is defined to be the length of one minute of arc along the equator (one equatorial minute of longitude) therefore a degree of longitude along the equator is exactly 60 geographical miles or 111.3 kilometers, as there are 60 minutes in a degree. The length of 1 minute of longitude along the equator is 1 geographical mile or 1 ...
Geodesics on the sphere are great circles, circles whose center coincides with the center of the sphere. Any two distinct points on a sphere that are not antipodal (diametrically opposite) both lie on a unique great circle, which the points separate into two arcs; the length of the shorter arc is the great-circle distance between the points.
Longitude calculations can be simplified using a clock is set to the local time of a starting point whose longitude is known, transporting it to a new location, and using it for astronomical observations. The longitude of the new location can be determined by comparing the difference of local mean time and the time of the transported clock.
Being considered old-fashioned, out-of-date, or—worse yet—unable to afford stylish new products was a fate many Americans went to great lengths to avoid. [24] For women, face, figure, coiffure, posture, and grooming had become important fashion factors in addition to clothing. In particular, cosmetics became a major industry. Women did not ...
In geography and geodesy, a meridian is the locus connecting points of equal longitude, which is the angle (in degrees or other units) east or west of a given prime meridian (currently, the IERS Reference Meridian). [1] In other words, it is a coordinate line for longitudes, a line of longitude.
Long, characteristic of something of great duration; Long, characteristic of something of great length; Longitude (abbreviation: long.), a geographic coordinate; Longa (music), note value in early music mensural notation
The haversine formula determines the great-circle distance between two points on a sphere given their longitudes and latitudes.Important in navigation, it is a special case of a more general formula in spherical trigonometry, the law of haversines, that relates the sides and angles of spherical triangles.
Prom dresses, with hemlines varying from above-the-ankle (tea length) to floor length. The hemline is the line formed by the lower edge of a garment, such as a skirt, dress or coat, measured from the floor. [1] The hemline is perhaps the most variable style line in fashion, changing shape and ranging in height from hip-high to floor-length ...