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所谓的“地球与绳”问题是指:用绳子沿着赤道绕一圈,将地球紧紧捆起来,假设地球是标准圆球体,则绳子的长度就是地球赤道的长度,当然这时绳与地面之间是没有空隙的.然后我们把绳子加长50米,这时刚刚紧贴地面的绳子由于变长后就会松一些,不再那么紧贴地面.那么绳子变松之后与地面会出现多大的间隔呢?这个问题乍一看感觉50米对于地球的赤道长度是忽略不计的,绳子加长以后理论上是要变松,但是能与地面出现的间隙肯定很小,可以忽略不计.
The so-called “Earth and Rope” problem means that when the rope is wrapped around the equator and bounding the earth tightly, the length of the rope is the length of the Earth’s equator, assuming that the earth is a standard ball, of course, when the rope And there is no gap between the ground and then we lengthened the rope 50 meters, then just close to the ground because the rope will become loose longer, not so close to the ground, then the rope becomes loose and the ground will appear What is the interval? The problem at first glance is that 50 meters is negligible for the Earth’s equatorial length. Theoretically, the lengthening of the rope should theoretically be loosened, but the gap with the ground must be small and negligible.