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According to ancient and medieval science, aether (/ ˈ iː θ ər /, 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 terrestrial sphere. [1]
Aether (classical element), in medieval cosmology and science, the fifth element that fills the universe beyond the terrestrial sphere; Quintessence (physics), a hypothetical form of dark energy, postulated to explain the accelerating expansion of the universe
The ancient Greek concept of four basic elements, these being earth (γῆ gê), water (ὕδωρ hýdōr), air (ἀήρ aḗr), and fire (πῦρ pŷr), dates from pre-Socratic times and persisted throughout the Middle Ages and into the Early modern period, deeply influencing European thought and culture. [5]
A perfect fifth is the most consonant harmony, and is the basis for most western tuning systems. [33] In harmonics, the fifth partial (or 4th overtone) of a fundamental has a frequency ratio of 5:1 to the frequency of that fundamental. This ratio corresponds to the interval of 2 octaves plus a pure major third.
A period 5 element is one of the chemical elements in the fifth row (or period) of the periodic table of the chemical elements.The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behaviour of the elements as their atomic number increases: a new row is begun when chemical behaviour begins to repeat, meaning that elements with similar behaviour fall ...
The Fifth Element, a 1997 film by Luc Besson starring Bruce Willis and Milla Jovovich . The Fifth Element, a 1998 video game based on the film; The Fifth Sacred Thing, which has also been referred to as The Fifth Element, is a novel by Starhawk
Wuxing (Chinese philosophy), ancient Chinese theory involving five 'phases', 'agents', or 'elements' Mahābhūta , the five elements in Indian philosophy Pancha Tattva (Vaishnavism)
The date used as the end of the ancient era is arbitrary. The transition period from Classical Antiquity to the Early Middle Ages is known as Late Antiquity.Late Antiquity is a periodization used by historians to describe the transitional centuries from Classical Antiquity to the Middle Ages, in both mainland Europe and the Mediterranean world: generally from the end of the Roman Empire's ...