Science Lab: Why is the sky blue? Why is the sunset red? (Canon Official)

Why does the sky appear blue, even though the air is transparent and the sun's light is white? And why does the sky turn red in the evening, even though it's blue during the day?


空気は透明、太陽光は白色なのに、なぜ空は青く見えるのでしょう。また、昼間は青い空が、朝や夕方に赤くなるのはなぜでしょう？

[Science Lab series]
Science Lab: Why does the sun shine? (Canon Official)
   • Science Lab: Why does the sun shine? ...  

Science Lab: Why are summer days longer? (Canon Official)
   • Science Lab: Why are summer days long...  

Science Lab: Why does the moon appear blurry? (Canon Official)
   • Science Lab: Why does the moon appear...  

Science Lab: Why does lightning occur? (Canon Official)
   • Science Lab: Why does lightning occur...  

Science Lab: Why does the oar appear bent at the water's surface? (Canon Official)
   • Science Lab: Why does the oar appear ...  

Science Lab: How is a rainbow formed? (Canon Official)
   • Science Lab: How is a rainbow formed?...  

Science Lab: Why is a soap bubble so beautiful? (Canon Official)
   • Science Lab: Why is a soap bubble so ...  

[日本語/Japanese Version]
【サイエンスラボ】空はなぜ青い？夕陽はなぜ赤い？(Canon Official)
   • 【サイエンスラボ】空はなぜ青い？夕陽はなぜ赤い？(Canon Official)  

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