空が青い理由
Why the Sky is Blue
空が青い理由は、光の特性と大気の働きによるものです。
The reason the sky is blue is due to the properties of light and the workings of the atmosphere.
太陽の光は白く見えますが、実は七つの色が含まれています。
Sunlight appears white, but actually contains seven different colors.
この光が空気の中を通るとき、小さい粒子にぶつかって散らばります。
When this light passes through the air, it hits small particles and scatters.
この現象を「散乱」と言います。
This phenomenon is called "scattering."
七つの色の中で青い光は波長が短く、他の色より散らばりやすいです。
Among the seven colors, blue light has a shorter wavelength and is more easily scattered than the other colors.
そのため、私たちが見る空は青く見えるのです。
This is why the sky we see appears blue.
朝や夕方に空が赤くなるのは、太陽の光が空気を通る距離が長くなり、青い光が届きにくくなるからです。
The sky turns reddish in the morning and evening because the distance the sun's rays travel through the air is longer, making it more difficult for blue light to reach us.
このように、空の色は光と空気の関係によって変わります。
Thus, the color of the sky changes depending on the relationship between light and air.
自然の仕組みは本当に不思議で美しいですね。
The mechanism of nature is truly mysterious and beautiful.
Comprehension Check
Question 1 of 3
What is the scattering of light by small particles called?