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Há 15 horas · 1923 - Roscoe Dickinson and Albert Raymond, and independently, H.J. Gonell and Hermann Mark, first showed that an organic molecule, specifically hexamethylenetetramine, could be characterized by x-ray crystallography. [64] [65] 1923 - William H. Bragg and Reginald E. Gibbs elucidated the structure of quartz.
22 de mai. de 2024 · In this chapter, we concentrate on a special class of variable stars, the Cepheid variables, in view of their immense importance in astronomy. Cepheid variable stars are being used for more than a century to determine the distances of distant stars and galaxies. The standard method for measuring the distance is the method of parallax.
Há 15 horas · The Romani, also spelled Romany or Rromani ( / ˈroʊməni / ROH-mə-nee or / ˈrɒməni / ROM-ə-nee) and colloquially known as the Roma ( sg.: Rom ), are an ethnic group of Indo-Aryan origin [71] [72] [73] who traditionally lived a nomadic, itinerant lifestyle. Linguistic and genetic evidence suggests that the Romani originated in the Indian ...
Há 15 horas · Demographics of Europe. Figures for the population of Europe vary according to the particular definition of Europe's boundaries. In 2018, Europe had a total population of over 751 million people. [1] [2] 448 million of that live in the European Union and 110 million live in European Russia, Russia being the most populous country in Europe.
Há 15 horas · Modernism rejected both 19th-century realism and Romanticism's concept of absolute originality — the idea of "creation from nothingness" — with techniques of collage, reprise, incorporation, rewriting, recapitulation, revision, and parody. The movement also took a critical stance towards Enlightenment rationalism.
Há 5 horas · next prev parent reply other threads:[~2024-05-21 10:14 UTC|newest] Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-05-21 10:13 [PATCH v14 00/28] drm/connector: Create HDMI Connector infrastructure Maxime Ripard 2024-05-21 10:13 ` [PATCH v14 01/28] drm/connector: Introduce an HDMI connector initialization function Maxime Ripard 2024-05-21 10:13 ` [PATCH v14 02/28 ...
Há 4 horas · next prev parent reply other threads:[~2024-05-21 11:31 UTC|newest] Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-05-21 10:13 [PATCH v14 00/28] drm/connector: Create HDMI Connector infrastructure Maxime Ripard 2024-05-21 10:13 ` [PATCH v14 01/28] drm/connector: Introduce an HDMI connector initialization function Maxime Ripard 2024-05-21 10:13 ` [PATCH v14 02/28 ...
