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A semi-presidential republic is a government system with power divided between a president as head of state and a prime minister as head of government, used in countries like France, Portugal, and Egypt. The president, elected by the people, symbolizes national unity and foreign policy while the prime minister is appointed by the president or ...
Geodetic latitude and geocentric latitude have different definitions. Geodetic latitude is defined as the angle between the equatorial plane and the surface normal at a point on the ellipsoid, whereas geocentric latitude is defined as the angle between the equatorial plane and a radial line connecting the centre of the ellipsoid to a point on the surface (see figure).
Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.
If the reference direction is north (either true north, magnetic north, or grid north), the bearing is termed an absolute bearing. In a contemporary land navigation context, true, magnetic, and grid bearings are always measured in this way, with true north, magnetic north, or grid north being 0° in a 360-degree system. [5]
The European Consortium for Political Research defines a regional power as 'a state belonging to a geographically defined region, dominating this region in economic and military terms, able to exercise hegemonic influence in the region and considerable influence on the world scale, willing to make use of power resources and recognized or even ...
This article contains a list of the circles of ... 66°33′49.6″ north – Arctic Circle; 66 N; 65 N; ... it is an imaginary line located at 0 degrees ...
In this system, the prime meridian passes through the center of the solar disk as seen from the Earth on 9 November 1853, which is when the English astronomer Richard Christopher Carrington started his observations of sunspots. [26] The second is the Stonyhurst heliographic coordinates system, originated at Stonyhurst Observatory in Lancashire ...
Null Island is the location at zero degrees latitude and zero degrees longitude), i.e., where the prime meridian and the equator intersect. Since there is no landmass located at these coordinates, it is not an actual island. The name is often used in mapping software as a placeholder to help find and correct database entries that have ...