ylem - definizione. Che cos'è ylem
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Cosa (chi) è ylem - definizione

HYPOTHETICAL ORIGINAL SUBSTANCE OR STATE OF MATTER

ylem         
['i:l?m]
¦ 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'.
Ylem         
Ylem ( or ) is a hypothetical original substance or condensed state of matter, which became subatomic particles and elements as we understand them today. The term was used by George Gamow, his student Ralph Alpher, and their associates in the late 1940s, having resuscitated it from Middle English after Alpher found it in Webster's Second dictionary, where it was defined as "the first substance from which the elements were supposed to have been formed.
Ylem (Stockhausen)         
Ylem is a composition by Karlheinz Stockhausen for a variable ensemble of 19 or more players, and is given the work number 37 in his catalogue of compositions.

Wikipedia

Ylem

Ylem ( or ) is a hypothetical original substance or condensed state of matter, which became subatomic particles and elements as we understand them today. The term was used by George Gamow, his student Ralph Alpher, and their associates in the late 1940s, having resuscitated it from Middle English after Alpher found it in Webster's Second dictionary, where it was defined as "the first substance from which the elements were supposed to have been formed."

In modern understanding, the "ylem" as described by Gamow was the primordial plasma, formed in baryogenesis, which underwent Big Bang nucleosynthesis and was opaque to radiation. Recombination of the charged plasma into neutral atoms made the universe transparent at the age of 380,000 years, and the radiation released is still observable as cosmic microwave background radiation.

Esempi dal corpus di testo per ylem
1. Spellers from English–speaking parts of the world filled in ovals with their No. 2 pencils during the multiple–choice test, which included words ranging from "icicle" to "ylem" (a hypothetical substance from the early universe). Matthew was happily surprised when he saw that the 25th word was Bewusstseinslage (a state of consciousness, pronounced bay–VOOHST–sines–lahg–eh), which he likes "just because it‘s so weird–sounding." "I was like, ‘Oh my goodness.