Scientists describe the Earth in terms of sphere s. The solid surface layer of the Earth is the lithosphere. Ionosphere definition is - the part of the earth's atmosphere in which ionization of atmospheric gases affects the propagation of radio waves, which extends from about 30 miles (50 kilometers) to the exosphere, and which is contiguous with the upper portion of the mesosphere and the thermosphere; also : a comparable region of charged particles surrounding another celestial body (such as Venus). But in mathematics, the precise (exact) definition only allows points in the 3 dimensional space which are uniformly and symmetrically located at … The media is, by and large, absent regarding this story. Biosphere (Living Things) All the living things in the planet are categorized under the biosphere. The lithosphere, sometimes called the geosphere, refers to all of the rocks of the … Sphere of influence definition, any area in which one nation wields dominant power over another or others. ecosphere synonyms, ecosphere pronunciation, ecosphere translation, English dictionary definition of ecosphere. The media condemns Russian President Vladimir Putin as a human rights violator who did not return an American defector. A sphere is a shape in space that is like the surface of a ball. (Entry 1 of 3) 1 a (1) : the apparent surface of the heavens of which half forms the dome of the visible sky. Seecelestial sphere. Sphere. b. the surface of such a figure; a spherical surface. Sphere frequently occurs in the phrase “sphere of influence,” which designates the geographical area over which a person, organization, or nation has control. In … phrase [sphere inflects] A country's sphere of influence is an area of the world where it has a lot of influence. The layers of Earth's atmosphere An atmosphere (from Ancient Greek ἀτμός (atmos), meaning 'vapour', and σφαῖρα (sphaira), meaning 'ball' or 'sphere') is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. The place where concentration of culture traits that characterizes a region is greatest. globe - WordReference English dictionary, questions, discussion and forums. Retailing is the activity of selling goods or services to buyers for personal, family or household use. They see the region as their natural sphere of influence. Geographers are interested in Earth’s physical features, such as mountains, deserts, rivers, and oceans. The place where concentration of culture traits that characterizes a region is greatest. cultural convergence. ный, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content. The same applies to other reference surfaces used as models for the Earth, such as oblate spheroids, ellipsoids and geoids.Since any map projection is a representation of one of those surfaces on a plane, all map projections distort. A sphere of influence is the region over which a group or institution has power, which is separate from whoever is traditionally in control. 3. core-domain-sphere model. The Lithosphere. the place or environment within which a person or … quadrant - A quarter of a circle or sphere. Lithosphere definition is - the solid part of a celestial body (such as the earth); specifically : the outer part of the solid earth composed of rock essentially like that exposed at the surface, consisting of the crust and outermost layer of the mantle, and usually considered to be about 60 miles (100 kilometers) in … People who study geography are called geographers. Definition of sphere. Geography is a science that deals with Earth’s surface. In many households, whoever is in charge of the cooking controls the kitchen; so, the kitchen falls within his … Core-domain-sphere model. noun the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. 1. a. a solid geometric figure generated by the revolution of a semicircle about its diameter; a round body whose surface is at all points equidistant from the center. Geography was therefore the study of how the physical environment caused human activities. sphere of influence - the geographical area in which one nation is very influential sphere geographic area , geographic region , geographical area , geographical region - a demarcated area of the Earth Carl Friedrich Gauss's Theorema Egregium proved that a sphere's surface cannot be represented on a plane without distortion. The biosphere extends from the deepest root system s of trees, to the dark environment of ocean trench es, to lush rain forest s and high mountain tops. A nineteenth- and early twentieth-century approach to the study of geography that argued that the general laws sought by human geographers could be found in the physical sciences. any of the transparent, concentric, spherical shells, or layers, in which, according to ancient belief, the planets, stars, and other heavenly bodies were set. ный, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content. The sphere of study of population geography also includes many phenomena that are not directly related to the production sphere but are significant from the point of view of reproduction of the population itself (such as maintenance of health or production training for young workers). Synonyms: area, range, scope, field More Synonyms of sphere of influence. See more. Intra-urban: Urban means a settlement of over 10,000 people, intra means within. sphere of influence. Therefore, intra-urban means within an urban area. Rural-urban fringe: The boundary between the urban area and the rural area. If you cut a sphere at one of its great circles, you'd cut it exactly in half. All Free. Many cartographic projections involve projecting the Earth to a developable surface and then "unrolling" the surface into a region on the plane. sphere great circle - Any circle on the surface of a sphere that lies on a plane through its center, or a circle that divides into two equal parts—as the Equator. To understand the sphere of influence of a facility, it is important to recognise several related key terms including hierarchy, range and threshold population. Sphere of influence: The area that people travel from to use a service. A great circle has the same circumference, or outer boundary, and the same center point as its sphere.The geometry of spheres is useful for mapping the Earth and other planets. 2. any rounded, globular body. 2: an area of knowledge or activity : sphere, province a hemisphere of life heretofore unknown to us 3 : one of two half spheres (see sphere entry 1 sense 2a ) formed by a plane (see plane entry 1 sense 2a ) through the sphere's center : half of a round object the place or environment within which a person or thing exists; a field of activity or operation: to be out of one's professional sphere. merging of cultures. The biosphere is made up of the parts of Earth where life exists. an area in which the power or interests of a country or an organization are of greatest importance (Definition of sphere of influence from the Cambridge Academic Content Dictionary © Cambridge University Press) Examples of sphere of influence Developable Mechanisms are mechanisms that conform to a developable surface and can exhibit motion (deploy) off the surface.. ... A nineteenth- and early twentieth- century approach to the study of geography that argued that the general laws sought by human geographers could be found in the physical sciences. ...countries traditionally within the British or American spheres of influence. Most of the time, the terms ball and sphere are used as the same. They are also interested in the ways that people affect and are affected by the natural world. A great circle is the largest possible circle that can be drawn around a sphere.All spheres have great circles. Define ecosphere. n. The regions of the universe, especially on the earth, that are capable of supporting life; the biosphere. (2) : any of the concentric and eccentric revolving spherical transparent shells in which according to ancient astronomy stars, sun, planets, and moon are set. 5 people chose this as the best definition of hemisphere: Either the northern or so... See the dictionary meaning, pronunciation, and sentence examples. The Warsaw Pact and the Soviet Union are not re-emerging, but a more traditional, soft sphere of influence based on historical Russian geography and empire building is. The zone of outer influence for a culture region. Developable surfaces have several practical applications. any of the transparent, concentric, spherical shells, or layers, in which, according to ancient belief, the planets, stars, and other heavenly bodies were set.

sphere definition geography

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