The first scientist to work out the law of gravity was Issac Newton.

提出万有引力定律的第一位科学家是艾萨克·牛顿。

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Newton invented calculus, described the law of universal gravitation and built the first reflecting telescope.

牛顿发明了微积分，描绘了万有引力定律，建立第一个反射镜。

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You have to be careful that this first law of Newton is not valid for everybody.

大家需要注意的是,牛顿第一定律并非所有情况都适用

耶鲁公开课 - 基础物理课程节选

A typical problem that you may have done in your first pass at Newton's law, someone tells you a force of 36 Newtons is acting on a mass of whatever, 4 kilograms; what's the acceleration?

在你们第一次接触牛顿定律时,可能见过这么一道典型题目,告诉你,一个 36 牛的力,作用在一个物体上,4 千克吧,问加速度是多少

耶鲁公开课 - 基础物理课程节选

It seems that Sir Isaac Newton got it right with his First Law of Motion: Bodies at rest tend to stay at rest.

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