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我们什么时候绕太阳转得更快些

发布时间: 2021-06-12 03:29  浏览数: 

  巴黎的一家报纸曾经刊登过广告,它说每个人只需要花25美分。您可以得到一种经济的旅行方法,而没有丝毫的疲劳和痛苦。果然, 一些轻率的人向该地址寄了25美分的钱。每个人都得到了回复,内容是这样的:

  先生,请安静地躺在床上并且请记住:我们的地球在旋转。在巴黎49度纬度下-你必须昼夜奔跑25天,超过000公里。如果您想看沿途美丽的风景,只是问你打开窗帘,享受繁星点点的天空之美。

  这位绅士终于被控以欺诈罪告上法庭。他听了判决书,缴纳罚款后据说一旦以表演的姿势站起来,庄严地重复了伽利略的话:

  “但,在任何情况下, 确实在旋转!”

  从某种意义上说,这个被告是正确的,因为地球上的居民不仅是在绕着地球的轴心“旅行”,同时, 它还使地球绕太阳公转的速度更高。我们的地球及其所有居民每秒在太空中移动30公里,同时, 它绕地球轴旋转。

  在这里可以提出一个有趣的问题:我们人类何时才能在地球轨道上更快地在白天或晚上绕太阳运行?

  这个问题很容易引起误会。如果地球的一侧在日光下,然后它的另一面一定是在黑暗中,出色地,这个问题的意义是什么?恐怕这是没有意义的。

  然而, this is not such a problem.The question here is not when the whole earth turns faster,But to ask,When are we-the inhabitants of the earth-moving between the stars faster?Such a question cannot be regarded as meaningless.We are doing two kinds of motion in the solar system: orbiting the sun,At the same time it rotates around the earth's axis.These two sports can be added together,But the result is not always the same,It depends on whether our position is on the day or night side of the earth.Please pay attention to Figure 3.You can understand that at midnight,The rotation speed of the earth must be added to its revolution and forward speed,But it's just the opposite at noon,The rotation speed of the earth must be subtracted from its revolution and forward speed.In this way,Our movement in the solar system,Midnight is faster than noon.

  Every point on the equator,It takes about half a kilometer to run every second,therefore,In the equatorial zone,The speed difference between noon and midnight reached a full kilometer per second.And a person who understands geometry will not be difficult to calculate,In Leningrad (it is at 60 degrees latitude),The difference is only half: the residents of Leningrad,The path traversed every second in the solar system at midnight,Half a kilometer longer than they ran at noon.

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