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在进比萨大学的第一年,伽利略有了一次奇妙的体验。1581年,伽利略到比萨大教堂做弥撒的时候,发现头顶高悬的吊灯在慢慢摇晃,而且不管是大幅的摇晃,还是要停止时的晃动,所需时间竟然都差不多。这激起了伽利略的求知欲,为了解决这个问题,他开始念几何学及与物体运动有关的所有知识——物理学知识,最后发现了单摆定
In his first year at Pisa University, Galileo had a wonderful experience. In 1581, when Galileo made a mass at the Cathedral of Pisa, he found that the chandelier hung above his head was shaking slowly. Whether it was a large shake or a shaking when it stopped, the time needed was almost the same. This aroused Galileo’s desire for knowledge. In order to solve this problem, he began to study geometry and all knowledge related to the movement of objects—physics knowledge.