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Vor 21 Stunden · Jahrhundert, in der Staatlichen Bayezit-Bibliothek, Istanbul. Kalām ( arabisch كلام ‚Rede, Gespräch, Debatte‘) bezeichnet im Islam die Wissenschaft, welche die Fähigkeit verleiht, die eigenen Glaubenslehren mit rationalen Argumenten zu begründen und Zweifel von ihnen abzuwenden.
Vor 21 Stunden · In standard cosmological calculations, "matter" means any constituent of the universe whose energy density scales with the inverse cube of the scale factor, i.e., ρ ∝ a −3. This is in contrast to "radiation" , which scales as the inverse fourth power of the scale factor ρ ∝ a −4 , and a cosmological constant , which does not change with respect to a ( ρ ∝ a 0 ).
Vor 21 Stunden · In physics, theories of gravitation postulate mechanisms of interaction governing the movements of bodies with mass. There have been numerous theories of gravitation since ancient times. The first extant sources discussing such theories are found in ancient Greek philosophy. This work was furthered through the Middle Ages by Indian, Islamic ...
Vor 21 Stunden · 1910s. Einstein's 1911 argument for gravitational redshift. 1911 – Albert Einstein explains the need to replace both special relativity and Newton's theory of gravity; he realizes that the principle of equivalence only holds locally, not globally. [42] 1915-16 – Albert Einstein completes his general theory of relativity.
Vor 21 Stunden · In this Chinese name, the family name is Shen. Shen Kuo ( Chinese: 沈括; 1031–1095) or Shen Gua, courtesy name Cunzhong (存中) and pseudonym Mengqi (now usually given as Mengxi) Weng (夢溪翁), [1] was a Chinese polymath, scientist, and statesman of the Song dynasty (960–1279). Shen was a master in many fields of study including ...
Vor 21 Stunden · Enrico Fermi (1901–1954) The Fermi paradox is a conflict between the argument that scale and probability seem to favor intelligent life being common in the universe, and the total lack of evidence of intelligent life having ever arisen anywhere other than on Earth. The first aspect of the Fermi paradox is a function of the scale or the large ...
Vor 4 Stunden · Skyscript Astrology Forum
