The Moon is the closest celestial body to Earth and is also Earth's protector.
Moon and Earth
On July 20, 1969, armstrong successfully set foot on the moon with the hopes of Earthlings.
But surprisingly, Armstrong talked in an interview about not daring to look back at Earth after landing on the moon.
With the improvement of science and technology, more and more scientists have realized the dream of landing on the moon, but they have all said that they have been uneasy when they look back at the earth on the moon.
The question is, what exactly is the lunar environment like?
Armstrong
What is the Earth in the eyes of the "moon people"?
What did the astronauts realize during their quest?
What is it that makes astronauts feel uneasy about Earth when they reach the moon?
Today's article will lead you to explore from the three aspects of the strange lunar environment, the terrifying home planet, and the small sentient beings.
Strange moon
Since ancient times, people often like to look up at the stars at night, and the first thing that comes to mind is the bright moon covered with silver brilliance, and people praise it with countless beautiful words.
But what the astronauts saw after landing on the moon was a devastated lunar surface and a gray-white soil, surrounded by darkness.
This is far from the mythical Qionglou Yuyu of the Moon Palace, and it is not surprising that the astronauts are in a state of disparity.
Astronauts also have to adapt to the moon's gravity, which is only one-sixth the size of Earth's.
That is to say, suppose we can lift 60 pounds of objects on Earth and 360 pounds of objects on the moon.
So we can see from the video that astronauts wearing heavy spacesuits and holding heavy equipment can still walk lightly on the moon.
However, it takes time to adapt to the gravity of the moon, and if you are not careful, you will "jump a thousand miles", which can't help but worry about whether you will jump out of the moon directly, so what else do you have to think about looking at the earth?
In addition, the Moon does not have an atmosphere, and the heat capacity and thermal conductivity of the lunar surface material are extremely low, so the temperature difference between day and night on the lunar surface is extremely large.
The name of the main sea and some craters on the front of the moon
If astronauts happen to land as well, they will face a long night of minus 183 degrees Celsius.
Here they have to endure extreme cold, long nights.
There is a popular saying "To the point, the net is cloudy!" Doesn't that mean people's minds are more likely to emanate at night?
What's more, people often say "one day in the sky, one year on the earth", although the time of the moon is not as exaggerated as the mythical description, but it is also very different from the earth.
Affected by the rotation of the earth, the day and night of the earth is 24 hours, and people have adapted to the biological clock of day and night.
However, a day on the moon is about equal to a month on Earth, and if you are in a long dark night, it will inevitably make astronauts feel uneasy.
Under the dual effects of the natural environment and emotions, it is impossible to be afraid of the earth, but astronauts will inevitably feel depressed about the surrounding situation.
So, now please follow this article to see the Earth in the eyes of the "MoonMan".
The home planet of horror
The earth has given birth to thousands of creatures and is the mother of mankind.
From space, the earth is an azure planet, and the earth under the space station is even more stunning.
Huge clouds, blue oceans, stunning landforms, towering man-made landscapes, and gorgeous night lights make people indulge in the beauty of the earth.
Why would such a beautiful earth scare the astronauts who landed on the moon?
Beautiful earth
This brings us to the phobia of giants that can be found in human genes.
Macrophobia is when people are always afraid of objects with much larger systems, such as tigers, elephants, or even large clouds.
They have the illusion that if they stare at giants for too long, they will see their faces in them.
Just seeing a huge object on the earth will be afraid, let alone a huge earth?
Structure of the Earth
The average radius of the Earth is 6371.004 kilometers, and the volume reaches 1083.2 billion cubic kilometers, and for the vast galaxy, the volume of the Earth can only be regarded as a brother.
But for the moon and astronauts on the moon, the earth is a giant.
The lunar moon has an average radius of 1737.10 kilometers, which is about one-forty-ninth the size of the Earth, while the general height of astronauts is 175 centimeters.
Looking at the moon on the earth, it is a white jade disk that emits a silvery white light; looking at the earth on the surface of the moon, half of the sky will be occupied.
Beautiful moon
In addition, on the Earth we can observe the rise and fall of the sun and the moon in the east, but on the moon we can only see the motionless Earth.
This is because, by tidal locking, we cannot see the far side of the moon.
In the same way, under the influence of gravity, we can only see the Earth hanging in the same position in the sky but constantly rotating on the moon.
What's more, in the dark universe, the light of the earth is particularly dazzling, like a large eye that has not moved to observe the moon, and astronauts naturally cannot look directly at the earth that will never fall for a long time.
At that time, there was also a hotly debated saying that the human beings on earth were the products of the breeding of higher civilizations, and the moon was the monitor of the higher civilizations to observe the earth.
In this way, will the astronauts' view of the Earth from the moon be the way higher civilizations monitor the Earth?
What's more, for higher civilizations, astronauts landing on the moon are like ants magnifying again under a magnifying glass, which can't help but make people sweat.
In the face of the behemoth that hangs in the air and emits light and does not move, but constantly switches scenes, and then think about all kinds of heated ideas, who can remain calm?
The mysterious universe
In addition, the astronauts faced the mysterious universe and once again realized the smallness of sentient beings.
Now this article will further explore the reasons why astronauts dare not look back at The Earth from the third aspect.
Small beings
Astronauts are selected from the best of the best in rigorous training.
But when they suddenly land on the unfamiliar moon and face the mysterious and unknown universe that only appeared in the image before, they will inevitably lose their minds.
Schematic diagram of the internal structure of the Moon
Not to mention that the cosmic environment is mysterious and full of crises, astronauts are too small for the entire universe, once there is a risk in the execution of the mission, they may lose their lives at any time.
As the saying goes, "The Moon is the guardian star of the Earth", because the Moon has helped the Earth withstand countless meteorite impacts.
In fact, looking at the moon, we will easily find that its surface can be described as full of holes. These potholes are due, on the one hand, to the volcanic activity of the moon, but more often to meteorite impacts.
Meteorite impact
In addition to various stars, planets, and moons, there are also many cosmic garbage and meteorites in the universe.
These meteorites often accidentally play off and smash uncontrollably into other planets.
You must know that the extinction of the original earth overlord dinosaurs was the result of the asteroid smashing into the earth.
Dinosaurs are too big compared to humans, but relative to the universe, not even ants.
solar system
What's more, there are many meteorites in the solar system, and Jupiter has a circle of asteroid belts around it, which are potential dangers.
It's hard to guarantee that these meteorites won't hit the moon while astronauts are on mission.
When their lives are threatened, astronauts realize with great clarity how small they are, and naturally they cannot always look at the earth.
In addition, sound is a mechanical wave, and mechanical waves can only propagate in a medium, not in a vacuum, and the universe is mostly vacuum.
Propagation of sound
This means that the universe is at the same time dead and silent in its vastness.
The vast, dead, unfamiliar environment will always make people uneasy.
Since human beings are so small, the cosmic environment is so dangerous, and there are so many uncertain factors on the moon, why should we explore the moon and explore the universe?
Let's explore the importance of exploring the universe and China's lunar exploration project.
Explore the Moon
Exploration is still ongoing
Ever since mankind learned of the existence of the universe, it has embarked on a constant exploration.
The ancient Qin Tianjian estimated the weather by observing the moon, stars, and sun.
But in today's development of science and technology, people can explore the broader sky through high technology.
It can be said that the significance of space exploration has a far-reaching impact, and manned spaceflight is imperative.
China's manned spaceflight
Space science can reveal the formation and evolution of the universe, and can help human beings explore the origin of life and find a new home for the future.
In addition, aerospace science needs high-tech support, such as electronic technology, computer technology, remote control detection technology, new energy technology, etc.
At the same time, aerospace technology also reacts to high-tech technology and promotes the development of human society.
As the first step of mankind to the universe, many countries have launched lunar exploration programs, and China is no exception.
In 2004, China officially launched the lunar exploration project, named "Chang'e Project".
With the successful completion of their respective missions by Chang'e-1 and Chang'e-7, scientists have also discovered that the moon has many unique minerals and resources that can promote the sustainable development of human society, which are important reserves for the earth's resources.
The exploration of the moon and the exploration of the universe is still continuing, and all of this requires sufficient scientific and technological and economic support.
However, "the hearts of the people are united, Taishan moves", with the concerted efforts of many countries, we will only go farther and farther on the road of exploration.