gravitational constant 中文意思是什麼
gravitational constant
解釋
【物理學】引力常數。- gravitational : adj. 【物理學】萬有引力的，地心吸力的。adv. -ly
- constant : adj 1 恆定不變的，固定的，穩定的，恆久的；繼續不斷的。2 不屈不撓的，堅韌的。3 忠實的，有節操的。n...
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Where m is the mass of the black hole, g is the gravitational constant and c is the speed of light
公式中的m是黑洞的質量， g是引力常數， c是光速。 -
If a scalar field changes slowly, it resembles a constant, both in its fixed magnitude and in its lack of directionality ; relativity theory predicts it will produce a gravitational repulsion
如果純量場變化緩慢，它就會有固定的大小，而且沒有方向性，就像一個常數一樣；相對論預測，這種情況會產生重力排斥效應。 -
The gravitational effect of matter caused acceleration and an unstable universe, which einstein did not want, since at the time the universe was not known to be expanding. thus einstein introduced a cosmological constant into his equations for general relativity. this term acts to counteract the gravitational pull of matter, and so it has been described as an anti - gravity effect
當時科學家並不知道宇宙正在膨脹，所以愛恩斯坦對這樣的宇宙模型並不滿意，故特意在廣義相對論引力方程中加入一個人工的宇宙常數，這個常數的作用，相等於一個和引力相反的排斥力，以抵銷引力的作用。
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