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sphere: [noun] the apparent surface of the heavens of which half forms the dome of the visible sky. any of the concentric and eccentric revolving spherical transparent shells in which according to ancient astronomy stars, sun, planets, and moon are set.
Sphere. A sphere (from Greek σφαῖρα, sphaîra) [1] is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. Formally, a sphere is the set of points that are all at the same distance r from a given point in three-dimensional space. [2]
- 2
- O(3)
- 4πr²
In geometry, a sphere is a three-dimensional solid figure, which is round in shape. From a mathematical perspective, it is a combination of a set of points connected with one common point at equal distances in three dimensions. Some examples of a sphere include a basketball, a soap bubble, a tennis ball, etc.
Sphere definition: 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.
Apr 23, 2024 · sphere, In geometry, the set of all points in three-dimensional space lying the same distance (the radius) from a given point (the centre), or the result of rotating a circle about one of its diameters. The components and properties of a sphere are analogous to those of a circle. A diameter is any line segment connecting two points of a sphere ...
- The Editors of Encyclopaedia Britannica
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SPHERE definition: 1. an object shaped like a round ball: 2. a subject or area of knowledge, work, etc.: 3. an…. Learn more.
Rome's sphere of influence extended as far as Scotland. His work is little known outside the academic sphere. In the novel, men and women enjoy separate spheres of action. The matter is outside my sphere of responsibility. The region is within the Russian sphere of influence. Debate should be confined to the sphere of economics rather than ...
