Shen VI Running Timetable 10, What fuel does Shen VI use to run in the air?

What kind of power does a launch vehicle use to send a spacecraft into space? Long before the invention of launch vehicles, people used oil and gas as fuel, and cars, ships, and airplanes relied on these fuels to propel them. Later, scientists invented launch vehicles that rely on chemical energy to generate power.

Launch vehicles use kerosene, alcohol, metamethylhydrazine, liquid hydrogen, etc. as combustion agents, and use nitric acid, liquid nitrogen, etc. to provide oxidants to help combustion, people are accustomed to call combustion agents and oxidants commonly known as fuel or propellant for rocket engines.

Physically, there are two forms of propellant used in rocket engines, one is a liquid substance and the other is a solid substance. An engine in which both the combustor and the oxidizer are in a liquid form is called a liquid fuel engine, or a liquid rocket engine, and if both are in a solid state, it is called a solid fuel rocket engine or a solid rocket engine. If there are two fuels, one is solid and the other is liquid, it is called a solid-liquid rocket engine or a rocket engine that directly calls its substance name.

For example, hydrogen-oxygen rocket engines. Because the energy produced by the solid-state combustion agent is higher than the energy emitted by the liquid oxidizer, therefore, the rocket engine developed at present is mostly the solid-liquid rocket engine, and the two fuels meet and burn to form a high-temperature and high-pressure gas, and the gas is ejected from the nozzle, and the carrier rocket is sent to space by producing a huge thrust.

Reader: Is there any liquid hydrogen fuel used in rocket engines?

Tan Songlin: No. The fuel used in the rocket for the launch of the Shen VI is metamethylhydrazine, which uses nitrogen tetroxide as an oxidizing agent. "(Excerpt from China Security Protection Network).

No fuel.

Because the air in space is extremely thin and close to a vacuum. So the resistance is very small and small, and it depends on inertia for a long time. However, after a certain period of time, it is necessary to adjust the attitude once, that is, to change the orbit once. That is, relying on the power of the pulse rocket.

When rockets go to space, they use too hydrogen and oxygen as propulsion fuel.

When in space, there is electricity in the capsule. Different extravehicular thrusters are used when adjusting the flight attitude, and it is not clear whether it is a solid-fuel thruster or a liquid.

When returning, it also relies on extravehicular thrusters to adjust the orbital attitude.

When there is no need to adjust the attitude in space, it is in a slightly heavy state. Floating in the air almost without external force and without any power.

Earth's gravitational pull, and its own gravity.

It seems to be after going to space. Run at your own speed.

In the Ejina Banner of the Alxa League in Inner Mongolia"Dongfeng base"Lifted off and 115 hours in space.

Germany is the most populous country in Europe, and due to the scarcity of talent in some industries, the aging population in Germany is becoming more and more serious, and the industry has called for a revision of the foreign labor policy to allow professionals from other countries, including China, to work in Germany. Germany has a well-established medical and social security system, and adheres to a welfare system that starts from the cradle. At the same time, Germany has a well-developed healthcare system and people enjoy universal health insurance.

The average life expectancy in Germany is a full decade longer than the global average life expectancy. German companies are in urgent need of the following professionals: nursing, mechatronics, metal processing, mechanical manufacturing, electrical engineering, automation technology, automobile maintenance, automotive engineering and other majors.

With more than 1,300 hours a year, Germans have one of the shortest working hours in any country, so on average they only need to work about six hours a day. Germans have a very different attitude towards work, they are very focused and productive at work, but they never want to work anymore when they leave the place where they work. It is also because of this attitude of being attentive enough at work and at rest that makes Germany's manufacturing industry one of the world's leading companies.

About working hours.

Working hours are usually from 8 a.m. to 5:30 p.m.

**The office is open to the public from 8 a.m. to noon.

Shops are mostly open from 9:30 a.m. to 6:30 p.m.

The general banking hours are from 8:30 a.m. to 13:00 p.m. and 14:30 p.m. to 4:00 p.m. from Monday to Friday, and extended to 18:30 on Thursdays, weekdays.

6. Rest all day.

Doctors' clinic hours are generally Monday to Friday from 10:00-12:00 am and 15:00-l8:00 pm, with many doctors closed on Wednesday afternoons.

About store business hours.

The shop is open from 9:00 to 18:00 on weekdays and until 14:00 on Saturday afternoons.

Some places are weekdays until 18:00 and Saturdays until 12:00.

Some stores, mainly large stores in large cities, are also open until 16:00 (summer) or 18:00 (winter) on the first Saturday of every month.

Similarly, there are many shops that are open until 20:30 every Sunday. Closed on Sundays and holidays.

The general work is to start work at 8 o'clock, and there should be 9 o'clock, but noon is not like our formal meal, generally bring some bread or something, take a break to eat, or go to the nearby fast food restaurant to eat casually, and it is estimated that you will not go home at noon.

After-hours vary depending on the job! But it's usually after 4 o'clock.

Generally, the work is 9 to 5, and the work in Germany is relatively relaxed, basically mixed hours, working in the morning, drinking beer and eating sausages in the afternoon. In addition to manufacturing. But the insurance system in Germany is very good, and it is possible to live without working.

I've heard that Japan has a 4-hour workday, 5 days a week, but Germany doesn't know.

As of 3:44 a.m. on April 15, 2006, the orbital module of the Shenzhou-6 spacecraft had been operating normally for 180 days, orbiting the earth 2,920 times.

More than 300 days is no problem.