弗里德曼方程派生自爱因斯坦的广义相对论。这两个方程式描述了整个宇宙的生命历程——由宇宙大爆炸时的暴烈到不断加速膨胀后的死寂。
Derived from Einstein's theory of General Relativity, the two Friedmann equations describe the life of the entire universe, from fiery Big Bang birth to chilly accelerated expansion death.
本文从含有变光速的度规出发考虑了宇宙的演化并给出了修正的弗里德曼方程。
We start from the metric containing a varying speed of light to investigate the cosmological evolution and give the modified Friedmann equations.
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