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光速的测量是一个饶有魅力的课题。意大利科学家伽利略最先指出光速是有限的,在1607年,他用灯光法进行测量,未获成功。1676年,丹麦天文学家罗默利用观测木星卫星食周期变化现象测出了光速。这是科学史上的一起重要事件。
The measurement of the speed of light is an attractive subject. The Italian scientist Galileo first pointed out that the speed of light is limited. In 1607, he used the light method to measure and was unsuccessful. In 1676, Danish astronomer Romer measured the speed of light by observing the changes in the Jupiter satellite’s food cycle. This is an important event in the history of science.