| 单词 | cosmological constant |
| 释义 | cosmological constant A term that can be added to Einstein's field equation for general relativity theory. The cosmological constant is independent of space and time. It was put forward by Einstein in 1917 to allow for the possibility of a static universe. Although the discovery of the expansion of the universe removed the original motivation for the cosmological constant, the cosmology of an expanding universe with a nonzero cosmological constant has been considered. The value of the cosmological constant is either zero or extremely close to zero. There have been many attempts to explain why the cosmological constant should be zero but there is not yet a consensus on what the explanation is |
| 随便看 |
|
物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。