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Aether
- His philosophy saw aether as the fifth element, after earth, air, fire, and water. He believed the four terrestrial elements were changeable and transient, but the planets and stars were eternal and thus must be made of a different substance that transcended the earthly four. He called it aether.
www.popularmechanics.com/science/energy/a23895030/aether/
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Oct 11, 2013 · Solmsen (n. 10) 293–303, and Seeck (n. 51) 97–8, 123–6, have argued convincingly that in De Caelo iii–iv Aristotle shows no knowledge of the fifth element and that these books, or at least the theories reflected in them, were originally conceived before De Caelo i.
- David E. Hahm
- 1982
With this addition the system of elements was extended to five and later commentators started referring to the new first one as the fifth and also called it aether, a word that Aristotle had used in On the Heavens and the Meteorology.
Mar 26, 2024 · Aristotle's Quinta Essentia, or the 'Fifth Element,' represents a crucial part of ancient and medieval metaphysics. As a concept, it helped humanity grapple with the complexities of the universe and played a significant role in the development of various fields of thought.
Aristotle therefore inferred that the cosmos above the terrestrial sphere (that is, from the moon upwards) was not made out of any of the mutable terrestrial elements but must be composed of a different, unchangeable substance, the fifth element or 'quintessence', which he called aether (αἰθήρ).
theory that in De Philosophia Aristotle discussed his doctrine of a fifth element, i.e. his belief that the heavenly bodies are composed of an element distinct from the four earthly elements, earth, water, air, and fire.
Oct 16, 2016 · He described the four elements of the world and nature - earth (heaviest), water, air, and fire (lightest) - and believed a fifth element existed (aether). To determine whether the body is light or heavy, Aristotle believed 'lightness' was the nature of moving away from the centre and 'heaviness' was the nature of moving toward the centre.
Aristotle therefore inferred that the cosmos above the terrestrial sphere (that is, from the moon upwards) was not made out of any of the mutable terrestrial elements but must be composed of a different, unchangeable substance, the fifth element or 'quintessence', which he called aether (αἰθήρ).
