s*****t
发帖数: 1994 | 1 Your understanding is wrong. Even in the daytime, if the Moon can
be seen, it is still the same 50% we see at night. The Moon only
has half of its surface towards the Earth, no matter the date and
time of a day.
The self-rotation period and the rotation period around the Earth
are both about 27 days. Think of the following case, without loss
of generality: suppose the Earth does not rotate itself, and the
Moon is now right on the top of sky over your head. Then the Moon
rotates away 10 degrees o |
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