Why can't we hear sounds on the moon? Why can't we see stars on the moon?

Stars are the most romantic and beautiful things we see in the night sky. The most dazzling one also brings people spiritual beauty and a moment of tranquility. Many children who like celestial bodies are very curious, why can't we see stars on the moon? What is the reason? Why can't we hear sounds on the moon? Let's explore and study it together today, I hope it will be useful to you.

Contents of this article

1. Why can’t we hear any sound on the moon?

2. Why can’t we see stars from the moon?

3. Can oil be mined on the moon?

Why can't we hear sounds on the moon?

The propagation of sound requires a sound source, a propagation medium, and an organ that receives sound. On the moon, sound can indeed be propagated through the solid ground, but because the surface of the moon is a vacuum, people must wear airtight space suits. There is air inside the space suit to maintain pressure balance with the human body, and outside the space suit is a vacuum. If people want to hear sound through the solid ground, they must put their ears close to the ground, but this is impossible for astronauts wearing space suits, so no sound can be heard on the moon.

In addition, even if you don't wear a space suit, the sound needs to pass through a vacuum zone from the solid to the ear, and there is no propagation medium in the vacuum, so you can't hear the sound.

Why can't we see stars from the moon?

Underexposure, the light of stars is very dim, and photos and videos need to be exposed for several seconds or even dozens of seconds to leave images on film or CCD. If people's purpose is not to take pictures of stars, but to take pictures of someone or something nearby, because of its high brightness, it can be photographed in 250th of a second or so. If the exposure is too long, the whole person will be overexposed and pale, which is unbearable to look at. You can see it by taking a camera outside at night. You don't need a camera, you can use a mobile phone. If you don't use any special exposure technology or image synthesis technology, it is generally difficult to take a picture of a starry sky with clear faces.

Can oil be mined from the moon?

1. There is no and cannot be oil on the moon. Oil is formed after the death of ancient organisms, which were buried in the strata by geological changes. However, there is no air on the moon, and no living organisms have ever existed, so there is no oil on the moon. Of course, there is no energy such as coal on the moon.

2. However, the helium-3 reserves on the moon are considerable, while the helium-3 storage on Earth is basically zero. This is because the Earth has an atmosphere, which blocks the solar wind, while the moon has no atmosphere, so the solar wind blows directly onto the lunar surface. Rich helium-3 resources have been accumulated over hundreds of millions of years, so the helium-3 on the moon can be used as a raw material for nuclear power plants.