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月亮的错觉

But when looking up at the night sky, there's nothing for your eyes to focus on, so they default to their rest focus, which is a point just a few meters away.

但是当你看天空的时候，没有东西可以让你的眼睛聚焦，所以眼睛默认是平常焦距，焦点只有几米远。

Now your brain thinks the moon is much closer than it really is, so you naturally conclude the moon's not as big as you thought it was.

现在你的大脑认为月球距离你很近，远比实际距离要近，所以你的大脑自然得认为月球并没有你想象的那么大。

英语相关

Rather than explain why the moon looks so big near the horizon, Convergence Microspia explains why the moon looks so small when overhead.

尽管它并没有解释为什么月球在地平线附近显得大，但收敛性视物显小症解释了为什么月球在空中看起来显得小。

Still not satisfied?

还是不满意？

Well, frankly, neither are many scientists, so the debate over the moon illusion still rages on and may continue as long as we still see it in the night sky.

好吧，老实说，很多科学家也不满意。所以关于这个现象的争论仍在继续，说不定只要我们一日能见到夜空中的月球，这争论就一日都不会停止。