Look at the moon. Full moon night, we think the moon is bright reflection of sunlight. I have a question, since the sun regard the moon lit up, why did not the moon lit the sky around it? The sun can not only focus moon, right? And when the moon moves to a new location, the original position immediately turn black, like the sun can not be like the old stage chasing light chasing the moon, right? To keep up with an example as to illuminate the moon should not be the sun, but the image of the sun.
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