But if blackberry jam tells everyone that there will be four moons in China in the future! What will everyone think?
With the development of science and technology, it is possible to land on the moon and propose marriage to the moon, but such a thing as making the moon is still a bit crazy in blackberry jam, even though our country is really trying it!
Normally, people all over the world have the same moon. No matter where this person is, the moon still illuminates you.
The electric light invented later made the city brighter, but it also brought serious loss and light pollution, which has always been a headache, so the plan of "artificial moon" was put forward.
I believe everyone knows that the moon itself does not shine, but because of its special position with the earth and the sun, it can reflect sunlight to illuminate the earth.
In fact, the principle of artificial moon is to reflect light, and through a special huge reflector, the sunlight will be directed and concentrated to a certain range, and they will orbit around the earth 500 kilometers away.
The real moon is about 380,000 kilometers away from the earth. In this way, the artificial moon will have eight times the brightness of the real moon. According to the plan, they will be able to continuously illuminate the same area, covering an area of 3,600 to 6,400 square kilometers!
At present, Chengdu Aerospace Science and Technology is in charge of this project. Chairman Wu Chunfeng said that if the artificial moon can illuminate the urban area of 50 square kilometers in Chengdu, it can save 1.2 billion yuan in electricity bills every year!
When there is an accident or disaster, it can also be used for night search and rescue, which is convenient for rescue. Moreover, the brightness and service time of the artificial moon can be adjusted, and the lighting accuracy can be controlled within 12 meters.
According to the plan, they will operate alternately to significantly reduce the power consumption of infrastructure, especially in winter. In this way, if the plan is successful, Chengdu will become China and even the world, the first city with four moons ~
However, in fact, people don’t really see so many moons, because they actually turn into stars hanging in the night sky, but they are especially shiny ~
At present, the artificial moon is still in the development stage, and researchers will first test the reflective effect of reflective foil and how to unfold it effectively in space. In the final analysis, it is still a mirror unfolding problem.
It is expected that the first satellite will be launched as a technical demonstration in xichang satellite launch center, Sichuan in 2020, and three satellites will be launched in 2022, and finally the whole lighting system will be built.
There are different opinions about whether China can complete the plan, but in fact, as early as 1990, Russia implemented a series of plans code-named "Flag" because it is located in a high latitude area with short sunshine time.
The principle is similar to that mentioned above, but they all ended in failure, the key of which is the failure of space mirror deployment.
Chengdu, on the other hand, said that it has the advantage of leading in materials and technology, but did not disclose too much information.
Flag No.2 with mirror unfolded.
However, some people made a rough estimation with the iridium satellite in orbit as a reference, and judged that the reflector must reach at least 100 square meters before it can reach what the person in charge said, "1/5 of the illumination of the real road light."
But if the intensity is not high, what is the significance of their lighting? Moreover, there are suddenly more "moons" in the sky. How will biological habits and people’s production and living activities be affected?
Besides, is it really that easy to launch such a huge thing into orbit and ensure long-term work?
In the view of blackberry jam, the fundamental purpose of the artificial moon project is to save energy and reduce light pollution, and the starting point is very good.
However, this is indeed a very difficult project. Let’s look at it with a positive attitude for the time being, every time human beings innovate and invent with a good purpose!
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