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Dynastic cycle (traditional Chinese: 朝代循環; simplified Chinese: 朝代循环; pinyin: Cháodài Xúnhuán) is an important political theory in Chinese history. According to this theory, each dynasty of China rises to a political, cultural, and economic peak and then, because of moral corruption, declines, loses the Mandate of Heaven ...
The book describes the general pattern of the official dynastic histories with regard to the structure, method, arrangement, sequence, caption, and commentary, dating back to the Warring States period. The Zizhi Tongjian was a pioneering reference work of Chinese historiography.
The traditional lens for viewing Chinese history is the dynastic cycle: imperial dynasties rise and fall, and are ascribed certain achievements. Throughout pervades the narrative that Chinese civilization can be traced as an unbroken thread many thousands of years into the past , making it one of the cradles of civilization .
Although he did not live to see the Zhou conquest of Shang, his legitimacy passed to his heirs. [20] Early on in the dynasty, there was some debate as to whether Heaven's mandate had fallen to the senior sons of King Wen's line, or to the house of Zhou as a group, as exemplified by an exchange surviving in the classic Book of Documents. [21]
The so-called Otto engines were developed in Germany during the last quarter of the 19th century. The fuel for these early engines was a relatively volatile hydrocarbon obtained from coal gas. With a boiling point near 85 °C (185 °F) (n-octane boils at 125.62 °C (258.12 °F) [1]), it was well-suited for early carburetors (evaporators). The ...
A Brayton cycle that is driven in reverse uses work to move heat. This makes it a form of gas refrigeration cycle. When air is the working fluid, it is known as the Bell Coleman cycle. [20] It is also used in the LNG industry for subcooling LNG using power from a gas turbine to drive the compressor. [dubious – discuss] [citation needed]
Teenagers are inhaling canisters of nitrous oxide sold under the brand name Galaxy Gas The brightly colored canisters are used to make airy whipped creams, but can cause “life-threatening health ...
The history of thermodynamics is a fundamental strand in the history of physics, the history of chemistry, and the history of science in general. Due to the relevance of thermodynamics in much of science and technology, its history is finely woven with the developments of classical mechanics, quantum mechanics, magnetism, and chemical kinetics, to more distant applied fields such as ...