In the universe does not transmit sound, so what do astronauts talk about?

Extraterrestrial life is very different from what happens on Earth. Even extremely simple things like communication also need new support devices that can be implemented. Why is that?

Sound can only be transmitted in matter because its nature is wave. But there is no conductor in the space outside the atmosphere - that means that the sound will not exist.

It turns out that the atmosphere not only has the unique role of providing oxygen for us to breathe, but also the most important sound transmission environment.

If it is in a space station (such as an ISS station), everything is very normal, because it still has air. So, how will astronauts be out of space to hear sounds? How will they communicate?

In the station or spacecraft, astronauts can talk to each other normally because there is still air here. What about the times when you have to do missions outside these places - how do they communicate with each other?

Everything is simple when in a spaceship.

This was once a conundrum for researchers in the past, when people were making the first steps in the field of astronautics. Later, thanks to the efforts and efforts of many experts, the problem was perfectly solved based on the principle: Sound waves cannot be transmitted in vacuum, but electromagnetic waves do.

A small recording device will be installed inside the travel cap, recording the astronaut's voice, and then converting it into radio waves transmitted to other people's hats, or transmitted to the Earth receiver station. Receivers catch waves and translate into sounds - the same way we listen to radio stations.

A small recording device will be installed inside the travel cap, recording the astronaut's voice.

However, sometimes the transmission is malfunctioning, making this way of communication disabled. And to fix it temporarily, astronauts will use a very . lovely alternative that touches the hat together and then talks normally.

The sound will be transmitted from the speaker through the air in the hat, over the hat to the other ear. Except for the headline, everything is not very different.

Therefore, it is said that life in space has many difficulties, but in return there are countless interesting things. Do you recognize it?