An article in which God asks the heavens, and the gods ask how much the heavens know

**Umbrella: flame retardant, wear-resistant, high strength, light weight, red and white, special-shaped design.

Spacesuit: good elasticity, strong radiation resistance, ultra-low temperature resistance, **expensive.

The launch of "Shenzhou VII" is imminent, but you may not know that the raw materials used in the extravehicular spacesuits of the "Shenzhou VII" astronauts and the ** umbrella of the return capsule are produced and provided by Chengdu Hairong Special Textiles. Yesterday (10th), Li Feng, a senior engineer of the company, revealed that the raw materials of the "Shenzhou VII" spacesuit were delivered to Beijing for testing as early as the end of last year, and the textile wire used in the spacesuit and the first umbrella is comparable to the "first price".

**Umbrella 300 kg per rope pull.

The special raw materials for the "Shen VII" spacesuit and the first umbrella were completed at the end of last year and delivered to the Beijing Institute of Aerospace Medicine for early testing. Li Feng said that the first umbrella can be different from ordinary aviation umbrellas, it is made of special polyester materials with high strength, light weight and good cushioning, and the umbrella has an area of 1,200 square meters.

Revealed: The raw materials used for ** umbrellas include more than 10 varieties of umbrella clothing materials, parachute ropes, connecting straps, sewing threads and so on. Li Feng introduced that the first umbrella of the spacecraft return capsule has very high requirements for the flame retardant, wear-resistant, strong, elongated, and weight of textile materials.

The raw material of the umbrella is special polyester, which is quite thin. **The umbrella is supported by 96 lines, each with a length of 46 meters and a weight of only 2 grams per meter. Each rope can withstand a tensile force of 300 kg.

The "Shen VII" return capsule ** umbrella adopts a special-shaped design, composed of red and white colors, and the strength on both sides of the umbrella is higher than that in the middle. At that time, 96 paracords will support the first umbrella, and the return capsule of the "Shen VII" spacecraft will land in a perfect posture with the help of the first umbrella.

Spacesuits are adapted to a variety of special environments.

In fact, after the 'Shen VI', we began to develop the spacesuit material for the 'Shen VII'. Li Feng said that the company had previously provided raw materials for spacesuits for the "Shen V" and "Shen VI" spacecraft, but they were all cabin suits, and the spacesuits of "Shen VII" had higher requirements for raw materials, to meet various special environments such as ultra-low temperature and strong radiation.

Revealed: As a special textile manufacturer, Hairong has been working on research and development since the 80s of the last century. Since it is impossible to produce spacesuits in large quantities, the raw materials produced by the company are also produced in small batches.

It is understood that the raw materials for the spacewear are provided by Hairong Company from head to toe, and high-strength brocade silk is used to connect all aspects of the clothing. Li Feng said that sometimes for the connection line on the head and hat of the spacesuit, it is necessary to go back and forth to Beijing many times to discuss and prove, "although the ** per kilogram of this kind of line is only more than 100 yuan, but the cost of the exchange is comparable to the ** price!" "The raw materials of these spacesuits are quite elastic, and the inner layer of the fabric is wrapped with rubber, which is resistant to ultraviolet rays and radiation.

I think this topic couldn't be more cute. It's not just the gods who are cute, but also those who have the courage to explore and work tirelessly. In ancient China, there was a legend of "Chang'e running to the moon"; There is also the idea of a "rocket" of 10,000 households; Dunhuang, the elegant picture, interprets the human questioning of the sky.

What's out there? Is it really still heaven outside the sky? For this reason, people have also worried about whether the sky will fall.

Mankind has carried these problems for centuries to the present day, where the economy and technology are sufficiently developed. Breakthrough after breakthrough, victory over yourself again and again. As Chiolkoski said, the earth is the cradle of humanity, but humanity will not live in the cradle forever.

For the universe, human beings are like innocent children, full of infinite curiosity about the universe. From Shen I to Shen VI, China's aerospace technology has made a qualitative leap. September 25, 21:

10。China has also successfully launched the Shenzhou-7 manned spacecraft. September 27, 16:

41。The astronaut walks out of the cabin. Against the backdrop of the cosmic enormity, the azure Earth rotates gracefully.

In the light of the sun, astronauts waved their national flags and walked through space. September 28, 17:20.

Astronauts return to Earth. At that moment, China boiled, and the world boiled. Our country became the third country in the world to master this technology.

With the expectations of the Chinese, Shenqi completed this difficult task. This aerospace dream is wonderful and beautiful. We can finally be as elegant and chic as the "flying sky" in the mural.

By 2020, China will have its own space station. It will also launch the Divine Eight, Divine Nine, and Divine Ten. We still need the courage to explore and the spirit of continuous innovation.

Suddenly I found that the world has become bigger, and there are many things unknown to human beings. It will take the efforts of generation after generation. I am proud that we are the descendants of "Feitian".

First, three astronauts took off as a flight crew. Prior to this, the "Shenzhou" spacecraft had two manned flights, one and two people, respectively, and this time three astronauts were in space. A total of six people are currently in training, of which three are on flight missions and three are in reserve.

This change in numbers shows that the "Shen VII" has greatly improved its interior space and comfort. A netizen who claimed to be a "NASA professional" claimed: "From my professional point of view, China's new spacecraft has been able to achieve a breakthrough in the free movement of astronauts in the cabin, which not only means that the space has increased, but also shows that the cabin environment technology of the Chinese spacecraft has made a qualitative leap, closer to NASA."

Second, the new spacesuit is a big highlight. China** reported in June 2007 that 300 square meters of spacesuit material had been produced. The new material is resistant to fire and radiation.

The new spacesuit was not only suitable for spacewalking, but also very comfortable. This is also a big breakthrough for Wang Sou for China's aerospace, because China's spacesuit previously had the "Sea Eagle" imported from Russia, but this spacesuit is relatively bulky, and it is very inconvenient to move in the cabin or outside the cabin. At present, the technology of the "Feitian" spacesuit developed by China is "comparable to that of the United States."

Of course, such spacesuits are worth a lot of money, and it is said that each set is up to 100 million yuan. Third, release the little companion. The United States** said that the astronauts on the "Shen VII" will release small surveillance satellites, that is, "companion satellites".

The stereo camera on the "companion" can provide instant footage of the spacecraft and astronauts' spacewalks. However, people in the European military and astronautical circles are not without concern and say that this technology means that China's spacecraft will have the ability to "hunt stars in space," because since Chinese astronauts have the ability to release satellites, they are of course also capable of "captive" satellites from other countries. Fourth, the challenge of walking out of the cabin is not trivial.

The "Shen V" is mainly to test the spacecraft, and the two astronauts of the "Shen VI" are mainly involved in the in-orbit flight of the spacecraft, while the astronauts of the "Shen VII" will undertake the out-of-cabin walk that no one in China has ever tried before. This is an important step in laying the technological foundation for China's space station. The U.S. aerospace community believes that China's first spacewalk should not last longer than an hour.

Fifth, the spacecraft's underwater experiments have made the outside world curious. After China made public that the spacecraft was training in a pool filled with water, there was speculation about what it was for. Sixth, the new performance of the launch vehicle is amazing.

The Long March Trap Calendar-2F rocket will be used to launch the Shenzhou-7 spacecraft, send three astronauts into a predetermined orbit and carry out space out-of-cabin activities. Compared with the rocket that launched the Shenzhou-6 spacecraft, this rocket has a total of 36 technical improvements, which further improve reliability and safety. In particular, in view of the large upward vibration of the rocket in the past, the design was improved to improve the comfort of astronauts riding the rocket. Telemetry image measurement devices are also installed in key parts of the rocket, which can monitor and record the main flight actions of the rocket in real time.

The international astronautical community has always been very concerned about the mature and advanced technology of China's rockets, and has been trying to collect China's rocket technology.