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Crash Course (sometimes stylized as CrashCourse) is an educational YouTube channel started by John Green and Hank Green (collectively the Green brothers), who became known on YouTube through their Vlogbrothers channel. [2] [3] [4] Crash Course was one of the hundred initial channels funded by YouTube's $100 million original channel initiative.
They pressured government officials to allow higher education for women, resulting in the creation of the Bestuzhev Courses. From 1879 to 1881, Filosofova was exiled, suspected of revolutionary sympathies; abroad, she became a theosophist .
Arrow pushing or electron pushing is a technique used to describe the progression of organic chemistry reaction mechanisms. [1] It was first developed by Sir Robert Robinson.In using arrow pushing, "curved arrows" or "curly arrows" are drawn on the structural formulae of reactants in a chemical equation to show the reaction mechanism.
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An example of a (s) descriptor: (1R,2s,3S)-1,2,3-trichlorocyclopentane. A practical method of determining whether an enantiomer is R or S is by using the right-hand rule: one wraps the molecule with the fingers in the direction 1 → 2 → 3. If the thumb points in the direction of the fourth substituent, the enantiomer is R; otherwise, it is S.
Crash Course in Science are an American post-punk band. The band was formed in 1979 in Philadelphia by Dale Feliciello, Mallory Yago and Michael Zodorozny. [ 1 ] [ 2 ] They avoided the sounds of conventional instrumentation by using toy instruments and kitchen appliances to augment distorted guitar, drums and synthesised beats. [ 3 ]
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Traffic collision reconstruction is the process of investigating, analyzing, and drawing conclusions about the causes and events during a vehicle collision. . Reconstructionists conduct collision analysis and reconstruction to identify the cause of a collision and contributing factors including the role of the driver(s), vehicle(s), roadway and gen