V2EX general relativity

General Relativity

Definition / 定义

广义相对论:阿尔伯特爱因斯坦提出的引力理论,认为引力并不是一种“力”,而是质量与能量使时空弯曲所产生的效应;物体在弯曲时空中沿“最自然的路径”(测地线)运动。常用于解释行星近日点进动、引力透镜、黑洞、引力波等现象。(另有“狭义相对论”主要讨论匀速运动与光速不变。)

Pronunciation / 发音

/dnrl rltvti/

Examples / 例句

General relativity explains gravity as the curvature of spacetime.
广义相对论把引力解释为时空的弯曲。

Although Newton’s laws work well in many situations, general relativity is needed to accurately describe black holes and gravitational waves.
尽管牛顿定律在许多情境下很有效,但要准确描述黑洞和引力波仍需要广义相对论。

Etymology / 词源

relativity 来自 relative(相对的)+ -ity(名词后缀),表示“相对性/相对关系”。“general(广义的)”用于强调它把相对性原理推广到更一般的情形(包括加速运动与引力场),与更早的 special relativity(狭义相对论) 相对。

Related Words / 相关词

Literary Works / 文学作品

  • Relativity: The Special and the General Theory(Einstein)以通俗方式介绍狭义与广义相对论。
  • Gravitation(Misner, Thorne, Wheeler)经典研究生教材,系统阐述广义相对论。
  • A Brief History of Time(Stephen Hawking,《时间简史》)在科普语境中多次讨论广义相对论与黑洞。
  • Black Holes and Time Warps(Kip Thorne)以历史与故事线讲述广义相对论、黑洞与相关发现。
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