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大学英语四六级晨读经典365:夏日激情篇 108 Galileo and the Lamps 伽利略和灯(mp3)

merryangle87 于2014-07-09发布 l 已有人浏览
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伽利略·伽利莱是文艺复兴后期近代实验科学的创始人。
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108 Galileo and the Lamps 伽利略和灯

IN Italy about three hundred years ago there lived a young man whose name was Galileo. Like Archimedes he was always thinking and always asking the reasons for things. He invented the thermometer and simple forms of the telescope and the microscope. He made many important discoveries in science.
大约300年以前,意大利有一个年轻人名叫伽利略他总是在思考问题,也总是探究事物的原因他发明了温度计、简易的望远镜和显微镜他在科学上有过许多重大的发现。

One evening when he was only eighteen years old he was in the cathedral at Pisa at about the time the lamps were lighted. The lamps—which burned only oil in those days—were hung by long rods from the ceiling. When the lamplighter knocked against them, or the wind blew through the cathedral, they would swing back and forth like pendulums.
一天晚上,正是点灯的时候,年仅18岁的伽利略正在比萨的大教堂里那刚点的都是油灯是用长竿从天花板士吊下来的当点灯的人碰到灯或是有风吹进教堂时,那些灯就会像钟摆一样来回摇摆。

Galileo noticed this. Then he began to study them more closely. He saw that those which were hung on rods of the same length swung back and forth, or vibrated, in the same length of time. Those that were on the shorter rods vibrated much faster than those on the longer rods. As Galileo watched them swinging to and fro he became much interested.
伽利略注意到了这个现象,于是他开始更仔细地研究它们。他看到那些思挂在长度相同的竿子上的灯来回摆动的时间是一样的而那些挂在较短的竿了上的灯比那些挂在较长竿子少的灯摆动得快得多当伽利略望着它们来回摆动时,他对此非常感兴趣。

When Galileo went to his room he began to experiment. He took a number of cords of different lengths and hung them from the ceiling. To the free end of each cord he fastened a weight. Then he set all to swinging back and forth, like the lamps in the cathedral. Each cord was a pendulum, just as each rod had been. He found after long study that when a cord was 39 1/10 inches long, it vibrated just sixty times in a minute. A cord one fourth as long vibrated just twice as fast, or once every half second. To vibrate three times as fast, or once in every third part of a second, the cord had to be only one ninth of 39 1/10 inches in length. By experimenting in various ways Galileo at last iscovered how to attach pendulums to timepieces as we have them now. Thus, to the swinging lamps in the cathedral, and to Galileo's habit of thinking and inquiring, the world owes one of the commonest and most useful of inventions,—the pendulum clock.
伽利略回到房间后,就开始做试验。他拿了一些长度不一的绳子,将它们挂在天花板上,每根绳子的下端者倒全了一个砝码。接着,他摆动那些绳子,让它们像教堂里的灯那样来回摆动。每根绳子就像灯竿那样成了一个钟摆。经过长时间的研究,他发现一条长39.1英寸的绳子在一分钟内恰好摆动60次。长度为其四分之一的绳子;摆动速度刚好是两倍,也就是说每半秒钟摆动一次。要使摆动速度达到三倍,或者说是每三分之一秒摆动一次,那么绳子的长度应为39.1英寸的九分之一。伽利略用各种方法试验以后,终于发现了将钟摆用于我们现在所见的钟表中的方法。因此,正是因为教堂里摆动的灯以及伽利略思考和探究的习惯,世界上才有了最普遍也是最有用的发明之——摆钟。

英语词汇注释

pendulum n. 钟摆
vibrate vi. 振动,摇摆
to and fro 往复地,来回地
cord n. 绳索,细绳
swing back and forth 前后摇摆
timepiece n. 钟,表

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