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Posted an advertising video for a certain phone
Astronauts walk, take pictures, and chat on the moon
Let netizens call out funny and like it
It also triggered everyone's imagination of lunar life
On July 20, 1969, Armstrong, the first human messenger to the moon, stepped on the moon and said: "The surface of the moon is beautiful, like a thin layer of toner, and the footprints can be clearly seen." ”
Armstrong's successful lunar landing marks the ability of humans to land on the moon. After that, more humans went into space and more lunar minerals were brought back to Earth. With more and more exploration and understanding of the moon, people are more yearning for the moon.
The Moon Palace "Immortal Medicine" is extraordinary
The Moon is a treasure trove of abundant resources and energy. At present, the most interesting resource on the moon is helium-3, which is a long-term, clean, safe and efficient nuclear fusion fuel.
Let's take a look at the true value of helium-3 with a simple example: if a deuterium and helium-3 nuclear fusion power station were built, then according to the sum of the electricity consumed by China in 1992, only about 8 tons of helium-3 would be consumed in the whole year.
▲ Helium-3 on the moon is rich in resources
Therefore, the development and utilization of helium-3 in the lunar soil provides a possibility for solving the energy crisis facing mankind in the future.
The temperature difference is not large, that is, 300 °C
Because the moon has unique position resources and environmental resources relative to the earth, almost everyone has looked up to the past and the present, and the reverie of the moon is innumerable. Landing on the moon, or even living on the moon, is a dream that everyone has hidden in their hearts. However, staying in the "Guanghan Palace" is by no means an easy task.
The Moon has no atmosphere, and the temperature change is directly determined by the sunlight, with a maximum temperature of 120 ° C during the day, while the night temperature will drop to -180 ° C, and the temperature difference between day and night is 300 ° C.
▲ The temperature difference between day and night on the moon is 300 ° C
In addition, the moon will also produce a large number of dangerous secondary radiation, if the human on the moon unprotected activities, the huge temperature difference and these secondary radiation will pose a greater threat to human health.
In addition, the moon is in a state of high vacuum and has no air. In this environment, human beings cannot survive. If human beings want to live on the moon, they can only build their own "moon palace".
That is to say, the main space for human activities on the moon is indoors. This would require the construction of a closed lunar base. The outer cover of the lunar base should be very strong enough to withstand radiation, meteors, meteorites, etc.
One day on the Moon is up to 14 Earth days. Then, at a high temperature of 120 ° C for 14 days, in order to maintain the safety of the residents of the lunar base, it is necessary that the base cover must have the ability to absorb and reflect part of the sunlight.
▲Imagination map of the moon base
The external functions of the lunar base are available, so what should the interior look like?
Life is inseparable from oxygen, water and food. On the moon, none of these three things may have occurred naturally. Therefore, the interior of the lunar base needs to have a complete set of closed circulation ecosystems in order to be able to supply the food, water and air needed by humans and maintain a good ecological environment for a long time.
Self-sufficiency was comparable to having a mine at home
Since 1984, American scientists have built the "Biosphere 2" test base in Arizona to test whether humans can survive without the earth.
The test site has a self-sufficient and closed ecosystem. Scientists hope the biosphere will allow the eight researchers who enter Biosphere 2 to live for two years.
▲ Biosphere 2
In January 1993, eight scientists entered Biosphere 2. More than a year later, the ecological situation of Biosphere 2 has taken a sharp turn for the worse, with rapid oxygen levels declining, carbon dioxide increasing, the atmosphere and seawater becoming acidic, and many species dying. As rains spiral out of control, artificial sand has turned into jungle and grass. Scientists were forced to withdraw from this "Garden of Eden" early. Biosphere 2's experiments ended in failure.
China has also done similar experiments, which were carried out in the life support ground-based comprehensive experimental device of the Yuegong-1 space base. This device was developed by the research team of Professor Liu Hong of Beijing University of Aeronautics and Astronautics, and is the first experimental device of the same type in China and the third in the world.
▲The appearance of The Moon Palace No. 1
Wolgong-1 consists of a comprehensive cabin and two plant cabins, with a total area of 150 m² and a total volume of 500 m³, cultivating food crops, vegetables and fruits, raising yellow mealworms, and microorganisms to degrade waste. Plants can not only provide food for astronauts, but also produce oxygen through photosynthesis and obtain pure drinking water through transpiration.
▲Lunar Palace No. 1 Plant Cabin II
The parts of plants that people do not eat, such as crop stalks, can be used to raise mealworms, providing astronauts with high-quality protein and a more reasonable amino acid ratio. Finally, the remaining inedible parts of the plant and the waste can be used to cultivate the plant. A closed cycle of matter in "Moon Palace No. 1" was formed.
▲ Wheat cycle in Tsukigu 1
The first experiment was successfully completed in May 2014 and was participated in by three volunteers, which lasted for 105 days. On May 15, 2018, four volunteers survived in closed confinement for 370 days and successfully completed the world's longest "Lunar Palace 365" experiment, laying a solid technical foundation for future human exploration of the moon and Mars.
▲ A record book of the first experiment
In order to avoid being forced to leave the earth one day, the first thing we must do is to take good care of our earth, cherish and protect the earth's environment and resources.