Do all kinds of scientific experiments. For example, the space pepper we eat is biological breeding.
Astronauts go to space to explore more knowledge points or things that humans have not yet involved. 1July 20, 969 is a great progress in exploring the cognitive space of the whole human society, which is of epoch-making significance. The American Apollo program was successful, and Apollo 1 1 spacecraft landed safely on the moon and set foot on the surface of the moon. One small step on the moon is really a big step for human civilization.
The movie The Wandering Earth may explain why we should explore space. A series of problems such as resource depletion, ecological deterioration and greenhouse effect are the reasons for human beings to explore space, that is, to prepare for the future. While a country's comprehensive strength is getting stronger and stronger, the success of exploring unknown areas will make its international status higher and higher.
Many big countries spend a lot of money on experiments again and again, and invest a lot of money in exploring space. However, some people may ask, even a world power like the United States, there are poor people at the bottom, and there are citizens who do not have enough to eat and clothes. Why can't these huge investments be translated into relief for poor families? What can the space field bring us?
In recent years, China is also vigorously developing space engineering and actively promoting the construction of China's manned space station, which is expected to be completed around 2022. China aims to build the space station into a space base for large-scale space science experiments and applications. The application prospect of space station is very broad, such as cultivating excellent varieties, exploring disease mechanism, developing biological drugs and promoting the development of new energy.
Exploring space to understand is expensive, but it is really necessary. Especially now, China needs to improve its international status and take the lead in mastering advanced technology in order to gain a firm foothold in the highly competitive world. Simply put, exploration is to let people enjoy higher resources, and this COVID-19 epidemic is the best proof.
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Benefits of space technology
Communication]
Satellite TV mobile phone
1on April 8, 984, China's first experimental communication satellite was successfully launched. Today, China's communication satellites are responsible for the transmission of dozens of TV programs and 30 foreign broadcasts.
World Cup, Olympic Games ... Satellite TV allows us to stay at home and know all the world events. Moreover, the digital TV set-top box developed by aerospace science and technology can also receive cable digital TV signals, allowing us to receive more channels and clearer programs.
Day by day, who is the prophet? For decades, the "space civilization" close to people's hearts is of course indispensable to the "weather forecast" provided by meteorological satellites. Li Yonghui, head of the weather forecast group of the landing station meteorological station of the activity monitoring and recovery department of China Xi Satellite Monitoring and Control Center, said: "The weather forecast methods currently used for spacecraft recovery can also serve the weather forecast of some sports events. For example, it can be directly used for the weather forecast of a venue and a certain time period of the Beijing Olympic Games, and even can finely predict the weather changes within half an hour. "
China is a country with frequent natural disasters, with annual losses as high as 200 billion yuan. In recent years, China has widely used satellite remote sensing to predict and evaluate typhoons, rainstorms and mudslides, reducing the national natural disaster losses by tens of billions of yuan every year.
Satellites can also provide farmers with crop yield estimation and pest prediction, and provide fishermen with fish location information. "China's multi-mode microwave remote sensor has realized the ability to observe the earth all-weather and all-day, and it is self-evident that it can see marine products, where there are fish schools and how big the fish schools are." Huang Jiangchuan, deputy chief designer of Chang 'e-1 satellite, said.
Medical treatment]
Using space technology to develop man-made organizations
NASA has developed a "bioreactor" for research. These reactors are used to make human tissues such as ligaments. They neutralize gravity, so cells can grow as if they were in the body. The miniature heart pump is developed by using the fuel pump technology on the space shuttle.
Space sickness drugs can also treat seasickness.
The first case of space disease was accompanied by manned space flight, which was a directional obstacle caused by weightlessness. Cosmic medicine has developed a variety of drugs and equipment to solve the above and other diseases caused by long-term weightlessness. Some of these methods can also be used to treat common diseases, such as seasickness.
Intelligent materials improve the technology of making artificial limbs.
NASA's research on the next generation space shuttle technology will have a wide impact. At present, we are studying "smart" materials that can still remember the original shape after being changed. This material may help to improve the technology of making artificial limbs.
Derived a device for measuring physical condition.
Non-invasive sensors used to measure pulse and other physical conditions come directly from similar equipment used to monitor astronauts.
New drug research and development
"Humans have made a lot of scientific achievements in space activities in the past half century, some of which have been used to improve human life, and some will be reflected in people's lives in the near future." Hu Wenrui, an academician of China Academy of Sciences and International Academy of Astronautics, explained this in detail.
From the life-threatening "artificial heart" and kidney dialysis technology to a pair of travel shoes on the feet, all of them are "masterpieces" of aerospace technology.
[Space Vegetables]
Space has a unique high vacuum, strong radiation, microgravity and other environments that are difficult to simulate on earth, providing an ideal experimental site for scientific research. Using special space environment to induce plant character variation and cultivate new varieties with excellent characters is space breeding.
Since 1987, more than 300 kinds of crop seeds have been developed in China, and more than 50 strains have been planted and popularized in a large area.
According to incomplete statistics, 43 strains have been planted and popularized in large areas in China, and there are space breeding bases in Beijing, Shanghai, Heilongjiang, Jiangsu, Gansu and other places. "Hangjiao No.3 and No.4", "Space Cucumber" and "Hangqie 1 No.3" ... The nutritional content of these delicious space vegetables has generally increased by 30% ~ 46%, and they have been put on the table of ordinary people's homes.
Of the more than 1000 new materials developed in China in recent years, 80% were developed under the traction of space technology. Nearly 2,000 achievements in space technology have been transplanted to various sectors of the national economy.
Hu Wenrui said that among millions of protein in human body, less than 1% is known. "In the microgravity environment in space, protein can grow very large crystals, which can be used for structural analysis. If it is applied to pharmaceuticals, every successful protein structural analysis will produce a new product. "
It is reported that the R&D cost of developing a new drug in the United States is generally between 500 million and 654.38 billion US dollars, with an average time of about 5 years. Undoubtedly, studying protein in the space environment will greatly improve the efficiency and quality, and the research results may be used to change human health, solve problems such as food and medicine, and greatly improve human living standards.
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