During the launch of Shenzhou-10, what scientific experiments did Shenzhou-10 conduct in space? What is the significance of the successful launch of Shenzhou-10?

1970, a nun from Zambia wrote to Ernst Stalinger, deputy director of the University Science Department of NASA. In her letter, she asked, there are so many children starving on earth, why should we explore Mars? Stalin said in his reply: "A trip to Mars cannot directly provide food to solve the problem of famine. However, a large number of new technologies and methods it brings can be used in areas other than the Mars project, which will generate benefits several times the original cost. " Some people call it "spillover effect".

Tao Jianzhong, an expert from Shanghai Institute of Aerospace Technology, said recently that the conversion efficiency of solar cells of Shenzhou-10 has reached about 26%, which is at the international leading level. If this technology can continue to develop and further reduce the cost, it will greatly change our lives.

Wang Kunsheng, president of China Institute of Aerospace Systems Science and Engineering, said that about 80% of the more than 1 100 new materials developed and used in China in recent years were developed under the traction of space technology.

During the Shenzhou VII mission, China conducted the space exposure test of solid lubricating materials for the first time. After more than 2000 experiments, researchers from Lanzhou Institute of Chemical Physics and Institute of Photoelectricity of Chinese Academy of Sciences have developed an experimental device that can be reliably locked and easily unlocked. In space, astronauts can take down and recycle test equipment through simple actions. The later result of this experiment is to obtain a new lubricating oil and a new lubricating grease, which can help solve the lubrication problem of precision bearings of space remote sensing instruments. Since China's first artificial satellite, solid lubricating materials have been used in spacecraft. Some lubricating products later entered the civil field and were used in automobiles and household appliances.

Answer the argument

For scientists, some problems that cannot be solved on earth will be solved in the microgravity environment of space.

Botanists have long discovered that in the process of upward growth, the top of plants will swing upward. It is difficult to see this relatively slow movement of plants by direct observation of human eyes, but it is obvious when shooting with time-lapse photography technology. There are two hypotheses to explain this phenomenon for a long time.

Darwin was the first person to put forward this explanation. He thinks this movement is the internal behavior of plants. However, two Swedish scholars believe that the swing of plants is only the result of gravity induction. If we turn the root of a plant upside down, it will know that it is upside down, and then let the root and stem grow in opposite directions. This is because there is a substance similar to human otolith inside the plant, which can make it find balance according to gravity. The proposer of the latter hypothesis thinks that plants always overcorrect in the process of balance, and then adjust in another direction, and then go too far, and then adjust again … and so on.

Which of these two hypotheses is correct will not be judged until the arrival of the space age. As early as the 1960s, scientists took plants to satellites to observe how plants move in weightlessness. The experiment didn't get a definite conclusion. Later, during the mission on the International Space Station, this question was finally answered. In the weightless environment, the swing amplitude of plants becomes smaller; After artificial simulation of gravity, it returned to the swing amplitude when it was on the ground. This shows that Darwin is right, the swing is endogenous, and the role of gravity is to increase this movement.

Physiological detection

Many space science experiments on the shenzhou spaceship are closely related to the human body. During the Shenzhou-9 experimental mission, Chinese scientists conducted a systematic human physiology experiment in microgravity for the first time, and synchronously detected arterial pulse, venous pulse, EEG and eye movement before, during and after the mission flight.

In this mission, the researchers also accumulated data of astronauts' bone metabolism to study how to prevent bone loss under weightlessness. "Shenzhou IX" * * * carried out 15 experiments related to space medicine, including the pharmacokinetic study of paracetamol under weightlessness and the monitoring of biological cycle rhythm of astronauts during sleep.

In these disciplines, many interesting scientific questions remain to be answered. For example, in previous space and simulated microgravity experiments, scientists have observed the occurrence of osteoporosis in humans and animals, but it is still unclear what mechanism led to this result.

Meaning.

1

Shenzhou 10 was successfully launched.

China has entered the era of applied space flight.

2

Through its own efforts, China has completely mastered the construction and operation of a long-term habitable space station.

Key technology, this is a milestone.

three

、

This is the first one in shenzhou spaceship.

10

Secondary launch,

Astronaut Yang Liwei made his first flight in Shenzhou 5 spacecraft.

Space happened.

10

A few years. In the meantime, * * * has been

10

A Chinese astronaut went into space.

"Shenzhou 10"

A successful launch,

It marks the progress of our space strength.

The promotion of military strength

Litres,

Understanding of space resources!

Undoubtedly, it is another step for China to have a permanent space experimental station in the near future.

A solid step,

It is a microcosm of China's gradual becoming a space power.

At this time, China people are exploring the unknown universe.

Our dreams and practices have turned a new page.

China has fully mastered the key technologies for building and operating a long-term habitable space station.

Here is.

The significance of milestones!