What do astronauts eat in the space?
In this video, you will get answers to some questions about astronauts like this.
 
The training of astronauts runs regularly.
The duration of training depends on the task that they have to do in space.
At the starting, they were provided by basic training which includes :
the training of space station, spacewalking, and how to use the robotic arm.
The training could be extended up to 3 years.
Once upon a time, a very experienced astronaut said that,
" If you are not afraid a little, then you will feel that nothing has happened."
All the astronauts already knew about the risks in space travel.
Astronauts take this risk because they knew the advantages and values of exploration of space.
Sometimes astronauts also get nervous, but they never allow their nervousness to interfere with their work.
 
 
The missions of ISS(International Space Station) have a duration of up to 6 months.
Valeri Polyakov, who was a Russian astronaut had stayed 437 days, the most no of days in space.
A normal body has to survive in an abnormal environment of space.
As soon as they reach into space, their bottom part starts moving to their upside.
Astronauts get a stomach ache, after reaching in space,
which stays for a period of 3-4 days.
Every day, astronauts workout for 2-3 hours.
If they don't do this, then their bones become weak
 
 
Astronauts carry First-Aid with them everywhere,
which can solve small problems up to large problems.
There are no doctors present in the squad of astronauts,
But all astronauts have trained about how and when to use First-Aid and CPR.
If the case is very serious, then they can make an emergency trip to Earth.
 
 
Astronauts take many types of food products to space.
Most foods are first made, then after freezing them, the air is taken out of the food, and then it gets seal pack.
After doing this process, the food can easily taken to space.
Till now, peanut butter is the best product that can be directly taken to space.
Obviously, they can call their family members.
You will not find that the call is done from Earth or space.
An astronaut is never weightless when it is on Earth.
But, when an astronaut is revolving around the Earth, it becomes weightless.
This happens because in space there is an absence of ground.
That's why anything can't oppose the gravitational force.
And that's why all the astronauts are weightless in space.
 
 
Astronauts can't talk to each other in space because sound needs a medium, through which it can travel.
We already knew that air is present on Earth..
Hence, it acts as a medium and that's why we can talk to each other
On the other hand, there is an absence of air.
Thus, sound can't travel in space and that's why astronauts can't talk to each other.
 
 
There is no "up" or "down" in space, but there is a presence of microgravity.
Thus, astronauts attach themselves with robotic arm and sleep in a sleeping bag.
Astronauts can't sleep anywhere because there is 0 gravity in space. Hence, they can be hit by something.
Astronauts take 7-8 hours of sleep in a day.
 
 
Till today, 19 astronauts died in space and their dead bodies had not been found till now.
 
 
There are reasons for choosing white colour:
The first reason is that white colour reflects heat & sunlight.
Hence, they never get too hot.
The second reason is that space is totally black. Hence, the white colour can be noticed easily.
But, when astronauts are inside the spaceship, they have a choice to wear any cloth of any colour.
 
 
The cost of a spacesuit is 1,00,20,000$.
When you convert it in Rupees. It will be equal to Rs.87,00,00,000.
 
 
The temperature of space is nearly 3 Kelvin,
whereas, in Fahrenheit, it will equal to -455 degrees.
Also in Celsius, it will be equal to -271 degrees.
 
 
Astronaut's helmet works as a pressure bubble,
which is made up of plastic.
Through helmet, oxygen is provided to the astronauts.
There is a little space left in the helmet so that astronauts can itch their nose.
 
 
Astronauts can't use pencil in space because the pencil tends to break many times.
And it has to sharpened every time by a sharpener.
One more reason is that the place becomes too risky to be burnt, where the pencil's lead is present.
 
 
There is a device in the astronaut's helmet, which
converts their voice into radio waves & transmit each other.
This works the same as our radio works.
 
 
Astronauts see stars in the space, leaving that everything looks black.
 
 
 
To check their eye and body, they are asked to throw a ball.
 
The balance of their body, after throwing the ball decides that they are pass or fail?.
Like this, there are around 30 tests by which astronauts are tested.
The space station revolves around the Earth at a speed of 2816 km/h.
The space station revolves the whole round of Earth in only 90 minutes.
When it revolves, the space station is in sunlight for 45 minutes, and for another 45 minutes, it is total dark.
This means that if you are on the space station, the sun will rise for 16 times.
And, the sun sets for 16 times in a day.
Dear friends, the video contains this much information.
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We will meet very soon in our next video,
Till then, Stay happy, Stay learning.
