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Knightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch.The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, "an indefatigable student of the paleontology of the Rocky Mountains."
Methylidynetricobaltnonacarbonyl is a molecule that illustrates the kind of reduced carbon species speculated to occur in the Fischer–Tropsch process.. The Fischer–Tropsch process involves a series of chemical reactions that produce a variety of hydrocarbons, ideally having the formula (C n H 2n+2).
In Season 14, Stockfish faced a new challenger in Leela Chess Zero, ekeing out a win by one point (50.5–49.5). [ 37 ] [ 44 ] Its winning streak was finally ended in Season 15 , when Leela qualified again and won 53.5–46.5, [ 37 ] but Stockfish promptly won Season 16 , defeating AllieStein 54.5–45.5, after Leela failed to qualify for the ...
In cosmology, the relic abundance of a given elementary particle is a measure of the present quantity of that particle remaining from the Big Bang. Uses [ edit ]
The value X can represent a single sample drawn from a single distribution or can represent a collection of samples drawn from a collection of distributions. If there are n samples and the corresponding n distributions are statistically independent then the Fisher information will necessarily be the sum of the single-sample Fisher information ...
[34] [35] [36] Fin movements of a single fish act as a point-shaped wave source, emitting a gradient by which predators might localize it. Since fields of many fish will overlap, schooling should obscure this gradient, perhaps mimicking pressure waves of a larger animal, and more likely confuse the lateral line perception. [ 34 ]
The Siamese fighting fish (Betta splendens), commonly known as the betta, [2] is a freshwater fish native to Southeast Asia, namely Cambodia, Laos, Myanmar, Malaysia, Indonesia, Thailand, and Vietnam.
The Heirloom Seal of the Realm (traditional Chinese: 傳國玉璽; simplified Chinese: 传国玉玺; pinyin: chuán guó yù xǐ), also known in English as the Imperial Seal of China, was a Chinese jade seal allegedly carved out of the Heshibi, a sacred piece of jade. [1]