V2EX celestial mechanics

Celestial Mechanics

释义 Definition

“Celestial mechanics” 指天体力学:研究行星、卫星、彗星等天体在引力等作用下的运动规律的学科(常用数学与物理方法来预测轨道、解释天体相互作用)。

例句 Examples

Celestial mechanics helps us predict when a comet will return.
天体力学帮助我们预测彗星何时会再次回归。

Using celestial mechanics, scientists modeled how gravitational interactions slowly change a planet’s orbit over millions of years.
利用天体力学,科学家模拟了引力相互作用如何在数百万年间缓慢改变行星轨道。

发音 Pronunciation

/ sls.tl mkn.ks /

词源 Etymology

“Celestial” 来自拉丁语 caelestis(“天空的、天上的”),与 caelum(“天空”)相关;“mechanics” 源自希腊语 mēkhanikē(“机械/技艺之学”)。两者合起来字面意思是“研究天体运动的力学”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • 拉普拉斯(Pierre-Simon Laplace)《Mécanique Céleste》(常译作《Celestial Mechanics / 天体力学》):以系统数学方法奠定经典天体力学的重要著作。
  • 庞加莱(Henri Poincaré)《New Methods of Celestial Mechanics》(《天体力学新方法》):对三体问题与动力系统思想影响深远。
  • 牛顿《Philosophi Naturalis Principia Mathematica》(《自然哲学的数学原理》):虽不以该短语为书名,但其核心内容是天体力学的基础(万有引力与轨道理论)。
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