Aither Compilation
Aither may refer to: * Aether (classical element), the material supposed to fill the region of the universe above the terrestrial sphere * Aether (mythology), the personification of the "upper sky", space and heaven, in Greek mythology See also *Aether (other) Aether, æther or ether may refer to: Historical science and mythology * Aether (mythology), the personification of the bright upper sky * Aether (classical element), the material believed to fill the universe above the terrestrial sphere ** A ...

Aether (classical Element)
According to ancient and History of science in the Middle Ages, medieval science, aether (, alternative spellings include ''æther'', ''aither'', and ''ether''), also known as the fifth element or quintessence, is the material that fills the region of the universe beyond the Sublunary sphere, terrestrial sphere. The concept of aether was used in several theories to explain several natural phenomena, such as the propagation of light and gravity. In the late 19th century, physicists postulated that aether permeated space, providing a medium through which light could travel in a vacuum, but evidence for the presence of such a medium was not found in the Michelson–Morley experiment, and this result has been interpreted to mean that no luminiferous aether exists. Mythological origins The word (''aithḗr'') in Homeric Greek means "pure, fresh air" or "clear sky". In Greek mythology, it was thought to be the pure essence that the gods breathed, filling the space where they lived, an ...
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Aether (mythology)
In Greek mythology, Aether, Æther, Aither, or Ether (; (Brightness) ) is the personification of the bright upper sky. According to Hesiod, he was the son of Erebus (Darkness) and Nyx (Night), and the brother of Hemera (Day). In Orphic cosmogony Aether was the offspring of Chronos (Time), and the brother of Chaos and Erebus. Genealogy According to Hesiod's ''Theogony'', which contained the "standard" Greek genealogy of the gods, Aether was the offspring of Erebus and Nyx, and the brother of Hemera. However, other early sources give other genealogies. According to one, the union of Erebus and Nyx resulted in Aether, Eros, and Metis (rather than Aether and Hemera), while according to another, Aether and Nyx were the parents of Eros (in Hesiod, the fourth god to come into existence after Chaos, Gaia (Earth), and Tartarus). Others tell us that Uranus (Sky) (in Hesiod, the son of Gaia) was Aether's son, and that "everything came from" Aether. In Orphic cosmogony Aether was th ...
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