V2EX gravitational wave

Gravitational Wave

定义 Definition

引力波:由大质量天体的加速运动(如双黑洞并合、中子星碰撞等)引起的时空涟漪,以光速传播,会造成极其微小的距离伸缩变化。(在物理学中是广义相对论的重要预言;也有更泛的“重力相关的波动”用法,但最常见指上述“时空波”。)

发音 Pronunciation

/rvtenl wev/

例句 Examples

Scientists detected a gravitational wave in 2015.
科学家在2015年探测到了引力波。

The collision of two black holes can release gravitational waves that ripple across the universe.
两颗黑洞的碰撞会释放引力波,使其涟漪般传播穿越宇宙。

词源 Etymology

gravitational 来自 gravity(重力),而 gravity 源自拉丁语 gravitas(“重量、庄重”),与 gravis(“沉重的”)相关;wave 源自古英语 w(“波浪、起伏”)。作为术语,“gravitational wave(引力波)”主要用于描述爱因斯坦在1916年前后提出的广义相对论框架下的“时空波动”。

相关词 Related Words

文学与著作出现 Literary Works

  • A Brief History of Time Stephen Hawking(《时间简史》)
  • Black Holes and Time Warps: Einstein’s Outrageous Legacy Kip S. Thorne(《黑洞与时间弯曲》)
  • The Science of Interstellar Kip S. Thorne(《星际穿越的科学》)
  • The Three-Body Problem Liu Cixin(《三体》)
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