How then can Newtonian gravity affect light?
那么牛顿引力如何影响光呢？
Newtonian gravity
原声例句
时间简史（原版）
学科图谱 天文篇
A couple of courses relevant to this video are Gravitational physics where you can practice the fundamentals of Newtonian gravity, and quantum objects where you can delve into the quantum realm.
与该视频相关的几个课程是引力物理学， 你可以在其中练习牛顿引力的基本原理，以及量子物体， 你可以在其中深入研究量子领域。
中文百科
牛顿万有引力定律 Newton's law of universal gravitation
（重定向自Newtonian gravity）
万有引力定律 (Newton's law of universal gravitation) 是艾萨克·牛顿在1687年于《自然哲学的数学原理》上发表的。牛顿的普适万有引力定律表示如下：
任意两个质点有通过连心线方向上的力相互吸引。该引力的大小与它们的质量乘积成正比，与它们距离的平方成反比，与两物体的化学本质或物理状态以及中介物质无关。
以数学表示为：
（更严谨的表达请见下文中的矢量式方程。）
其中：
依照国际单位制，F的单位为牛顿(N)，m1和m2的单位为千克(kg)，r 的单位为米(m)，常数G近似地等于6.67 × 10 N m kg（牛顿米的平方每千克的平方）。
英语百科
Newton's law of universal gravitation 牛顿万有引力定律
（重定向自Newtonian gravity）
Newton's law of universal gravitation states that a particle attracts every other particle in the universe using a force that is directly proportional to the product of their masses but also inversely proportional to the square of the distance between them. This is a general physical law derived from empirical observations by what Isaac Newton called induction. It is a part of classical mechanics and was formulated in Newton's work Philosophiæ Naturalis Principia Mathematica ("the Principia"), first published on 5 July 1687. (When Newton's book was presented in 1686 to the Royal Society, Robert Hooke made a claim that Newton had obtained the inverse square law from him; see the History section below.)