单词	statistical mechanics
释义	statistical mechanics noun plural in form but usually singular in construction : a branch of mechanics dealing with the application of the principles of statistics to the mechanics of a system consisting of a large number of parts having motions that differ by small steps over a large range Example Sentences Recent Examples on the Web Thermodynamics and statistical mechanics are the powerful methods physics has developed to derive the properties of bodies—such as their temperature and pressure—from the basic behavior of their atoms and molecules, using probability. Frank Wilczek, WSJ, 17 Mar. 2022 Ergodicity is a crucial concept in statistical mechanics, which (for example) deduces the behavior of a large volume of gas from the motions of its uncountable individual molecules. Alex Hutchinson, Outside Online, 18 Mar. 2022 For these unruly systems, statistical mechanics falls short in representing phase transitions. Quanta Magazine, 11 Nov. 2021 Mathematically, these systems are elegantly described with statistical mechanics, the branch of physics that explains how collections of objects behave. Quanta Magazine, 11 Nov. 2021 But all these extra energy sources and mismatched reactions make for a complex dynamical system beyond the reach of statistical mechanics. Quanta Magazine, 11 Nov. 2021 In the parlance of statistical mechanics, this is known as a scale-free correlation. Brandon Keim, New York Times, 1 Oct. 2021 The researchers used a statistical mechanics approach called graph theory to understand the consequences of vessels that form networks with vertices with exactly three edges, which had been previously observed in the lab. Emily Singer, Scientific American, 20 Aug. 2013 In the 19th century, scientists realized these principles could be explained as the collective motion of countless constituent particles, and this gave rise to a theory called statistical mechanics. Andrew Crumey, WSJ, 2 Oct. 2020 See More Word History First Known Use 1885, in the meaning defined above
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