「宇宙における静寂：地球を超えた音の真実」

"Silence in Space: The Truth About Sound Beyond Earth"

宇宙では音が聞こえない理由とは？空気分子がほとんど存在しない真空の環境では、音波が伝わらず、宇宙船内での音の感じ方や通信手段が地球とは異なることを探ります。

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Can you really hear nothing in space?

In our daily life, we are always surrounded by sound, but the situation changes in space.

The reason is that there are almost no air molecules to carry sound.

On Earth, sound travels through the vibration of air, but space is close to a vacuum, and sound waves cannot travel.

However, inside a spaceship, the environment is similar to Earth's atmosphere, and we can feel sound.

We can hear normal conversations and machine sounds inside the ship, but outside the ship, sound disappears. Furthermore, in space, communication uses electromagnetic waves instead of sound waves.

Electromagnetic waves can travel in a vacuum, so they are important for communication. In this way, the way we feel sound and send information in space is very different from on Earth.

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by USER08070109000b
作成:2024/12/06 21:27
レベル:初中級 (語彙目安:1000〜2000語)

# 「宇宙における静寂：地球を超えた音の真実」
## "Silence in Space: The Truth About Sound Beyond Earth"

![thumbnail](https://eigobox.s3.ap-northeast-1.amazonaws.com/g/c22643ac2707d949382e9f98e40e525dd3cd4e2d.png)

---

Can you really hear nothing in space?

In our daily life, we are always surrounded by sound, but the situation changes in space.

The reason is that there are almost no air molecules to carry sound.

On Earth, sound travels through the vibration of air, but space is close to a vacuum, and sound waves cannot travel.

However, inside a spaceship, the environment is similar to Earth's atmosphere, and we can feel sound.

We can hear normal conversations and machine sounds inside the ship, but outside the ship, sound disappears. Furthermore, in space, communication uses electromagnetic waves instead of sound waves.

Electromagnetic waves can travel in a vacuum, so they are important for communication. In this way, the way we feel sound and send information in space is very different from on Earth.

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宇宙では何も聞こえないって、本当？

日常生活で私たちは常に音に囲まれていますが、宇宙空間では状況が一変します。

その理由は、音を伝えるために必要な空気分子がほとんど存在しないためです。

地球では空気の振動によって音が伝わりますが、宇宙は真空に近い環境であり、音波が伝わりません。

しかし、宇宙船内では地球の大気に近い環境が整っており、音を感じることができます。

船内では普通に会話や機械の音を聞くことが可能ですが、船外では音は消え去ります。さらに、宇宙空間での情報伝達には音波ではなく、電磁波が利用されます。

電磁波は真空中でも伝わるため、通信手段として重要です。このように、宇宙での音の感じ方や情報の伝え方は、地球とは大きく異なります。

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