noun اسم

Ylem meaning in urdu

یلم

  • Pronunciation

    /ˈiːlɛm/

  • Definition

    in cosmology, the original matter that, according to the big bang theory, existed before the formation of the chemical elements

    کاسمولوجی میں، اصل مادہ جو بگ بینگ تھیوری کے مطابق کیمیائی عناصر کی تشکیل سے پہلے موجود تھا۔

  • Example

    The ylem existed before atoms formed from electrons, neutrons and protons.

    ایلم الیکٹران، نیوٹران اور پروٹون سے بننے والے ایٹموں سے پہلے موجود تھا۔

noun اسم

Ylem meaning in urdu

یلم

  • Definitions

    1. In the Big Bang theory, the hot and dense plasma which made up the cosmos at the time of recombination in an early stage of its expansion and cooling, when the first atoms formed and photons decoupled. The ylem is regarded as the source of the cosmic microwave background.

    بگ بینگ تھیوری میں، گرم اور گھنے پلازما جس نے برہمانڈ کو دوبارہ ملاپ کے وقت اس کی توسیع اور ٹھنڈک کے ابتدائی مرحلے میں بنایا تھا، جب پہلے ایٹم بنتے تھے اور فوٹون ڈیکپل ہوتے تھے۔ ایلم کو کائناتی مائکروویو پس منظر کا ماخذ سمجھا جاتا ہے۔

  • Examples:
    1. He [George Gamow] surmised that that the universe began as a super-condensed raging inferno of protons, neutrons and electrons, which he and his colleagues called the ylem The internal pressures of the ylem caused it to expand outward extremely rapidly. After a few minutes the ylem cooled down sufficiently to allow the strong force to bind neutrons and protons together into deuterium nuclei. Then there was just enough time for some of the deuterium to fuse into helium before temperatures and pressures of the ylem became too diffuse to allow more fusions.

    2. Let us now consider the state of matter during the first minutes of the expansion process, when the temperature of the universe was many billions of degrees high. [T]he state of matter must be visualized as a hot gas formed entirely by nuclear particles; that is, protons, neutrons, and electrons. We will call this primordial mixture of nuclear particles "Ylem," [footnote: Pronounced: ī′lěm] reviving an obsolete noun which, according to Webster's Dictionary, means "the first substance from which the elements were supposed to be formed." Next we can ask what happened to the Ylem when its density and temperature began to drop as the result of the rapid expansion taking place in the young universe.

    3. The ylem was the primordial flux of neutrons out of which all else emerged.

    4. Very shortly after the beginning of the universal expansion, the ylem was a gas of neutrons only. [Footnote: According to Webster's New International Dictionary, 2nd Ed., the word ‘ylem’ is an obsolete noun meaning ‘The primordial substance from which the elements were formed.’ It seems highly desirable that a word of so appropriate a meaning be resurrected.]