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The number eight plays an important part in Gnostic systems, and it is necessary to distinguish the different forms in which it appeared at different stages in the development of Gnosticism. The earliest Gnostic systems included a theory of seven heavens and a supercelestial region called the Ogdoad.
Ancient, medieval and Renaissance astronomers and philosophers developed many different theories about the dynamics of the celestial spheres. They explained the motions of the various nested spheres in terms of the materials of which they were made, external movers such as celestial intelligences, and internal movers such as motive souls or ...
The concept of seven heavens as developed in ancient Mesopotamia where it took on a symbolic or magical meaning as opposed to a literal one. [4] The concept of a seven-tiered was likely In the Sumerian language, the words for heavens (or sky) and Earth are An and Ki. [5]
Taking the distance of the Sun as 1,266 Earth radii, he was forced to place the sphere of Venus above the sphere of the Sun; as a further refinement, he added the planet's diameters to the thickness of their spheres. As a consequence, his version of the nesting spheres model had the sphere of the stars at a distance of 140,177 Earth radii. [34]
Visualization of a celestial sphere. In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth.All objects in the sky can be conceived as being projected upon the inner surface of the celestial sphere, which may be centered on Earth or the observer.
These usually represent different kinds of moral values, electric charges, or types of ceremonial magic. [7] The sefirot are the ten spheres on the Tree of Life. Each sefirah (singular of sefirot) represents a different aspect of the Divine, as well as aspects of human consciousness and existence. These are, from top to bottom: [14] Keter (crown)
Therefore, there must be fire at the center of the cosmos. [6] According to Philolaus, the central fire and cosmos are surrounded by an unlimited expanse. Three unlimited elements: time, breath, and void, were drawn in toward the central fire, where the interaction between fire and breath created the elements of earth and water.
In mathematics, 6-sphere coordinates are a coordinate system for three-dimensional space obtained by inverting the 3D Cartesian coordinates across the unit 2-sphere + + =.They are so named because the loci where one coordinate is constant form spheres tangent to the origin from one of six sides (depending on which coordinate is held constant and whether its value is positive or negative).