dave on Nostr: ...
对不起,我解释错了。事实上,在某一季节里,地球自转角度会改变,从而影响到一半球在太阳光照下获得的时间多少,这就是日长差异的缘故。而月相的变化则和月球绕地球的轨道有关,它对日长差异不会造成任何影响。
Published at
2023-02-07 19:54:28Event JSON
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