Ylem

Ylem

Ylem o hylem (forma aumentativa de la palabra griega ὑλη -hylé-= materia) es el nombre dado por Aristóteles a la que consideraba sustancia fundamental de la cual procedería todo ente de materia.

El término ylem ha sido retomado a partir del siglo XX por George Gamow, físico de origen ucraniano que emigró desde la URSS a los Estados Unidos en 1936) y sus asociados entre los que se contaban Ralph Alpher. Con el nombre de ylem —y basándose en las tesis de Georges Lemaître— Gamow ha denominado al punto primordial (singularidad) de materia condensada a temperaturas extremadamente elevadas del cual habría surgido el actual Universo; la suposición de tal Ylem preludió a la actual teoría del Big Bang.


Véase también

  • Teoría del universo inflacionario

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  • Ylem — is a term which was used by George Gamow, Ralph Alpher and their associates in the late 1940 s for a hypothetical original substance or condensed state of matter, which became subatomic particles and elements as we understand them today. It… …   Wikipedia

  • Ylem — est le nom donné par Aristote à la substance fondamentale d’où procédait toute matière. Le terme a été repris au XXe siècle par George Gamow (physicien d’origine russe émigré aux États Unis en 1936) pour désigner l’œuf primordial, la… …   Wikipédia en Français

  • ylem — [ilɛm] n. m. ÉTYM. Mil. XXe; mot angl. d orig. inconnue. ❖ ♦ Phys. Dans certaines théories cosmologiques, Mélange de particules (neutrons, protons, électrons) qui aurait précédé les atomes et les molécules …   Encyclopédie Universelle

  • ylem — [ī′ləm] n. [ME < MFr ilem < ? ML hylem, acc. of hyle, matter, orig., wood < Gr hylē] in some theories of cosmogony, the primordial material substance from which all the elements are supposed to have been derived …   English World dictionary

  • Ylem — Das Ylem ist der heiße Urbrei, ein sehr dichter, sehr heißer Neutronenklumpen, aus dem nach einer 1948 veröffentlichten Theorie von George Gamow das Weltall entstanden ist. Gamow benutzte dafür den bereits von Aristoteles zur Bezeichnung der… …   Deutsch Wikipedia

  • ylem — noun In the Big Bang theory, the hot and dense plasma of which the cosmos consisted at the time of recombination in an early stage of its expansion and cooling, when the first atoms formed and photons decoupled, the source of the cosmic… …   Wiktionary

  • ylem — /uy leuhm/, n. the initial substance of the universe from which all matter is said to be derived. [1948; adoption, in modern astrophysics, of ME ylem (Gower) < ML (h)ylem, acc. of hyle < Gk hýle matter, wood] * * * …   Universalium

  • Ylem (Album) — Ylem Studioalbum von Dark Fortress Veröffentlichungen Deutschland, Österreich, Schweiz: 22. Januar 2010 Europa: 25. Januar 2010 USA: 9. Februar 2010 Aufnahme …   Deutsch Wikipedia

  • Ylem (organization) — Ylem is an international organization of artists, scientists, authors, curators, and art enthusiasts, which was founded in 1981 by Trudy Myrrh Reagan. The official journal of the organization is YLEM Artists using Science and Technology .External …   Wikipedia

  • ylem — [ i:lɛm] noun Astronomy (in the big bang theory) the primordial matter of the universe, originally conceived as composed of neutrons at high temperature and density. Origin 1940s: from late L. hylem (accusative) matter …   English new terms dictionary

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