Name: 月食 - 為什麼月亮會變成紅色？| 月食 - 為什麼月亮會變成紅色？ (Lunar Eclipse - Why does the moon turn red? | #aumsum)
Uploaded: 2021-01-14T08:10:39.000Z
Duration: 1 min 1 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

Sunlight or white light is a mixture of visible colors.

Now, when the sunlight falls on the moon,
it reflects all these visible colors equally.

However, during a lunar eclipse when the earth is exactly between the sun and the moon, the moon appears red.

This happens because of the earth's atmosphere.

When the sunlight coming from the sun passes through the earth's atmosphere.

The earth's atmosphere scatters the colors of the sunlight having shorter wavelengths.

However, red color which has the longest wavelength
is least scattered.

Hence, it makes its way to the moon, making it look red.

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月食 - 為什麼月亮會變成紅色？| 月食 - 為什麼月亮會變成紅色？ (Lunar Eclipse - Why does the moon turn red? | #aumsum)

atmosphere

reflect

topic

appear