What changes have astronauts brought to us in space?

It broadens our horizons. For ordinary people, this is the only one, just like the experiment in which Chinese astronauts can float under vacuum in the first class, which gives people a desire for knowledge and makes people understand the vastness of the universe.

do all kinds of scientific experiments. For example, the space pepper we eat is biological breeding.

astronauts go to space in order to explore more knowledge points or things that humans have not yet involved. On July 2, 1969, it was a great progress for the whole human society to understand space, which was of epoch-making significance. The American Apollo program was successful, and the Apollo 11 spacecraft landed safely on the moon and set foot on the surface of the moon. A small step on the moon is indeed a big step for human civilization.

The movie The Wandering Earth may explain why we should explore space, the exhaustion of resources, the deterioration of ecology, the greenhouse effect and a series of other issues are all reasons for human beings to explore space, that is, to prepare for the future. And 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 are spending a lot of money on experiments again and again, and investing a lot in space exploration. However, some people may ask, even in a world power like the United States, there are people in poverty at the bottom, and citizens who can't eat and wear warm clothes. Why can't these huge investments be turned into relief for poor families? What can the space field bring us?

in recent years, China has also been vigorously developing space projects, and is actively promoting the construction of China's manned space station, which is expected to be completed around 222. 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, promoting the development of new energy and so on.

Although exploring space for understanding costs a lot, 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. To put it simply, exploration is to enable people to 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

On April 8, 1984, China's first experimental communication satellite was successfully launched. Today, China's communication satellites undertake the transmission tasks of dozens of TV programs and 3 external 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 technology can also receive cable digital TV signals, allowing us to receive more channels and clearer programs.

as the days go by, who is the prophet? For decades, the "space civilization" that is close to the hearts of the people is of course indispensable to the "weather forecast" provided by meteorological satellites. Li Yonghui, head of the weather forecast team of the Landing Station Meteorological Observatory of the Activity Measurement and Control Recovery Department of Xi 'an Satellite Measurement and Control Center in China, 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 can even be refined to predict the weather changes within half an hour. "

China is a country with frequent natural disasters, with annual losses as high as 2 billion yuan. In recent years, China has widely used satellite remote sensing to forecast and evaluate typhoons, rainstorms and mudslides, which has reduced the country's natural disaster losses by tens of billions of yuan every year.

satellites can also provide farmers with crop yield estimation and pest forecast, and provide fishermen with fish location information. "China's multi-modal microwave remote sensor has realized the ability of all-weather and all-time observation of the earth, and can see the marine products, where there are fish schools, and how big the fish schools are, which is self-evident." Huang Jiangchuan, deputy chief designer of Chang 'e-1 satellite, said.

Medical treatment]

Artificial tissue developed by space technology

The National Aeronautics and Space Administration of the United States has developed "bioreactors" for research, which are used to manufacture human tissues such as ligaments. They neutralize gravity, so cells can grow as they do in the body. The miniature heart pump is developed by using the fuel pump technology on the space shuttle.

Space sickness drugs can also cure seasickness

The first case of space sickness followed the manned space flight, which is the disorientation 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 of 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.

Derive equipment for measuring physical condition

Non-invasive sensors for measuring pulse and other physical conditions are directly derived from similar equipment for monitoring astronauts.

research and development of new drugs

"human space activities in the past half century have achieved a lot of scientific achievements, 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.

Everything from "artificial heart" and kidney dialysis technology, to a pair of travel shoes on your feet, is a "masterpiece" of space 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 place for scientific research. Using the special space environment to induce plant character variation and cultivate new varieties with excellent characters is space breeding.

since 1987, more than 3 kinds of crop seeds have been carried out in China by satellite, and more than 5 strains have been planted and popularized in a large area.

Incomplete statistics show that at present, 43 strains have been planted and popularized in a large area in China, and there are space breeding bases in Beijing, Shanghai, Heilongjiang, Jiangsu and Gansu. "Hangjiao No.3 and No.4", "Space Cucumber" and "Hangqie No.1 and No.3" ... These delicious space vegetables have generally increased their nutritional content by 3% ~ 46%, and have been put on the table of ordinary people.

Of the more than 1, new materials in China in recent years, 8% were developed under the traction of space technology. Nearly 2, achievements in space technology have been transplanted to various sectors of the national economy.

Hu Wenrui said that among the millions of kinds of protein in human body, less than 1% has been known. "In space microgravity environment, protein can grow very large crystals, which can be used for structural analysis. If it is applied to pharmaceuticals, every successful analysis of a protein structure will produce a new product. "

It is reported that the R&D expenditure for developing a new drug in the United States generally ranges from 5 million to 1 billion dollars, which takes about 5 years on average. There is no doubt that studying protein in space environment will greatly improve efficiency and quality, and the results may be used to change human health, solve problems such as food and medicine, and greatly improve human living standards.

We can discover more unknown things, promote the development of science and technology, explore our unknown fields and broaden our knowledge. Can get the most perfect results