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1mon
牛顿提出了万有引力定律,但引力的本质到底是什么?
牛顿明白,若不能解释这个问题,万有引力定律就有了漏洞。 但他也认识到,对于那个时代而言,这个问题过于深奥。 尽管牛顿的智慧不可估量 ...
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3mon
月球没有撞击地球的原因,真真假假的引力与离心力
如果牛顿看到这段话,估计会说:“先别急,让我来画个力学分析图,然后用我的F=ma公式算一下。” 不过,牛顿会先选一个“惯性系”,因为他的 ...
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