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In the field of international relations, a sphere of influence (SOI) is a spatial region or concept division over which a state or organization has a level of cultural, economic, military, or political exclusivity. While there may be a formal alliance or other treaty obligations between the influenced and influencer, such formal arrangements ...
A sphere of influence (SOI) in astrodynamics and astronomy is the oblate-spheroid-shaped region where a particular celestial body exerts the main gravitational influence on an orbiting object. This is usually used to describe the areas in the Solar System where planets dominate the orbits of surrounding objects such as moons , despite the ...
The Hill sphere is a common model for the calculation of a gravitational sphere of influence. It is the most commonly used model to calculate the spatial extent of gravitational influence of an astronomical body (m) in which it dominates over the gravitational influence of other bodies, particularly a primary (M). [1]
The Anglosphere is the Anglo-American sphere of influence, with a core group of nations that today maintain close political, diplomatic and military co-operation.While the nations included in different sources vary, the Anglosphere is usually not considered to include all countries where English is an official language, so it is not synonymous with the sphere of anglophones, though commonly ...
Stellar dynamics is the branch of astrophysics which describes in a statistical way the collective motions of stars subject to their mutual gravity. The essential difference from celestial mechanics is that the number of body. Slingshot of a test body in a two-body potential. N-particles in quasi-periodic motion in the phase space (x, mv) of an ...
America's Backyard. v. t. e. America's backyard is a concept often used in political science and international relations contexts to refer to the sphere of influence of the United States, the USA's traditional areas of dominance, especially Latin America. It is somewhat analogous to the Russian concept of near abroad (Russian: ближнее ...
In international relations, Françafrique (French pronunciation: [fʁɑ̃safʁik]) is France's sphere of influence (or pré carré in French, meaning 'backyard') over former French and (also French-speaking) Belgian colonies in sub-Saharan Africa. [9] The term was derived from the expression France-Afrique, which was used by the first president ...
Dai Tōa Kyōeiken. The Greater East Asia Co-Prosperity Sphere (Japanese: 大東亞共榮圈, Hepburn: Dai Tōa Kyōeiken), also known as the GEACPS, [1] was a pan-Asian union that the Empire of Japan tried to establish. Initially, it covered Japan (including annexed Korea), Manchukuo, and China, but as the Pacific War progressed, it also ...