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There are also nomadic Turkic tribes who descend directly from Central Asia, such as the Yörüks; [110] the Black Sea Turks in the north whose "speech largely lacks the vowel harmony valued elsewhere"; [110] the descendants of muhacirs (Turkish refugees) who fled persecution from former Ottoman territories in the nineteenth and early twentieth ...
In the 16th century, around 2,500 publications about the Turks—including more than 1,000 in German—were released in Europe, spreading the image of the "bloodthirsty Turk". From 1480 to 1610, twice as many books were published about the Turkish threat to Europe than about the discovery of the New World .
Like black holes, white holes have properties such as mass, charge, and angular momentum.They attract matter like any other mass, but objects falling towards a white hole would never actually reach the white hole's event horizon (though in the case of the maximally extended Schwarzschild solution, discussed below, the white hole event horizon in the past becomes a black hole event horizon in ...
The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list.. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M ☉), approximately 2 × 10 30 kilograms.
After two years of data processing, EHT released its first image of a black hole, at the center of the Messier 87 galaxy. [157] [158] What is visible is not the black hole—which shows as black because of the loss of all light within this dark region. Instead, it is the gases at the edge of the event horizon, displayed as orange or red, that ...
The black hole’s boundary — the event horizon from which the EHT takes its name — is around 2.5 times smaller than the shadow it casts and measures just under 40 billion km across. While this may sound large, this ring is only about 40 microarcseconds across — equivalent to measuring the length of a credit card on the surface of the Moon.
Size comparison of the event horizons of the black holes of TON 618 and Phoenix A.The orbit of Neptune (white oval) is included for comparison. As a quasar, TON 618 is believed to be the active galactic nucleus at the center of a galaxy, the engine of which is a supermassive black hole feeding on intensely hot gas and matter in an accretion disc.
The medieval Arab world used various terminology for people in reference to their skin colour with terms like al-bidan and al-abyad meaning "white people" and al-Sudan and Zanj meaning "black people". [132] [133] In general in the Arab world, the term "white" was used to refer to Arabs, Persians, Greeks, Turks, Slavs, and other peoples in the ...