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Definition. The Reynolds number is the ratio of inertial forces to viscous forces within a fluid that is subjected to relative internal movement due to different fluid velocities. A region where these forces change behavior is known as a boundary layer, such as the bounding surface in the interior of a pipe.
History 1983–1991: early years. AOL began in 1983, as a short-lived venture called Control Video Corporation (CVC), founded by William von Meister.Its sole product was an online service called GameLine for the Atari 2600 video game console, after von Meister's idea of buying music on demand was rejected by Warner Bros. Subscribers bought a modem from the company for $49.95 and paid a one ...
Porsche 919 Evo - Overall record holder on the modern 20,832 m (12.944 mi) full layout with a time of 5:19.546 minutes Volkswagen I.D. R - Overall electric record holder on the modern 20,832 m (12.944 mi) full layout with a time of 6:05.336 minutes Porsche 956 - Former overall record holder with a time of 6:11.13 minutes set during a qualifying session in 1983
Alzheimer's disease ( AD) is a neurodegenerative disease that usually starts slowly and progressively worsens, [2] and is the cause of 60–70% of cases of dementia. [2] [15] The most common early symptom is difficulty in remembering recent events. [1] As the disease advances, symptoms can include problems with language, disorientation ...
On January 6, 2021, the United States Capitol Building in Washington, D.C., was attacked by a mob of supporters of then-U.S. president Donald Trump, two months after his defeat in the 2020 presidential election.
Continent. Animated, colour-coded map showing some continents and the region of Oceania (purple), which includes the continent of Australia. Depending on the convention and model, some continents may be consolidated or subdivided. A continent is any of several large geographical regions. Continents are generally identified by convention rather ...
Martin Luther OSA ( / ˈluːθər /; [1] German: [ˈmaʁtiːn ˈlʊtɐ] ⓘ; 10 November 1483 [2] – 18 February 1546) was a German priest, theologian, author, hymnwriter, professor, and Augustinian friar. [3] Luther was the seminal figure of the Protestant Reformation, and his theological beliefs form the basis of Lutheranism.
The Seal of Belial according to the Ars Goetia. According to the Grand Grimoire, Baal (or Bael) is the head of the infernal powers. He is also the first demon listed in Wierus' Pseudomonarchia daemonum. According to Wierus, Bael is a King with estates in the east. He has three heads: a toad, a man, and a cat.