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[audioFiles]2018m2s/audio_ezfj_014_201802[/audioFiles] The Color of Snow
[audioFiles]2018m2s/audio_ezfj_014_201802[/audioFiles] The Color of Snow
游客
2023-10-29
32
管理
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The Color of Snow
Generally, the color of snow appears white. / This is because the light we see from the sun is white. / Most natural materials take in some sunlight / This gives them their color. / However, when light travels from air to snow, some light is sent back, or reflected / Snow crystals have many surfaces to reflect sunlight / Yet the snow does take in a little sunlight. / It is this light that gives snow its white appearance. /
Sometimes, snow may appear to be blue. / The blue light is the product of a long travel path through the snow. /
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