万有引力控制着天体的运动。
在早期人类史上,那种似乎有规律地重复自身的唯一变化就是天体的运动。
In early human history, the only changes that seemed to repeat themselves evenly were the movements of objects in the sky.
天文学家的工作涉及到观察、分析以及研究各种各样的天文现象,比如月亮、行星、恒星、银河等天体的运动。
Astronomers % are involved in the observation, analysis and research of various astronomical phenomena, such as the movements of celestial bodies like moons, planets, stars and galaxies.
Mercury is a liquid metal, and mercury, the planet, is the fastest moving naked eye heavenly body. Mars, iron, why is Mars red?
水银是液态金属,水银,行星,是肉眼能看到的运动最快的天体,火星,铁,为什么火星是红色的?
People to this day are looking for a theory of everything. And there is something very appealing about the notion that the rules that govern the motion of heavenly bodies might be applicable down at atomic dimensions.
现在人们总想寻求一些,可以阐明一切的理论,而这里正好有一些,可以吸引这种想法的东西,即支配天体运动的规则,可能对原子的尺寸也是适用的。
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