Illustration of bullet train-children are interested in mysterious space, how to popularize science? Aviation experts come to help.

Is there anything you can't take with you on the high-speed rail? 0 1

It is strictly forbidden to illegally carry inflammable, explosive, toxic, corrosive, radioactive, infectious disease pathogens and other substances as well as firearms, ammunition, controlled knives and other items that may endanger public safety into the station.

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Nail polish should not exceed 20 ml. Ordinary lighters can only carry two. The items that can be carried in limited quantities, such as safety matches and ordinary lighters, have been adjusted. For example, passengers can carry no more than 20 ml of nail polish, gloss remover and hair dye; Self-spraying pressure vessels such as cold perm essence, mousse, hair gel, insecticide and air freshener shall not exceed120ml; Safety matches are limited to 2 small boxes; Ordinary lighters can only hold two.

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It is strictly forbidden to carry dangerous goods in the consigned ordinary goods, and it is not allowed to conceal or falsely report dangerous goods as consigned ordinary goods. Luggage and parcel shippers should consciously accept the safety inspection of the railway department and implement real-name registration. For the shipper who refuses to accept the safety inspection or false name registration, the railway department refuses to check the luggage and parcels according to law. The consignee of the luggage and parcel should collect it with his valid identity document, otherwise the railway department has the right to refuse delivery.

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There is no explicit restriction on carrying drinks in the regulations of the railway department, but there are restrictions. First of all, bulk liquor is not allowed to be carried on the bus, and passengers can carry sealed bottled liquor on the bus. In addition, passengers cannot directly carry more than 100 ml of alcohol. And the quantity is limited to 20 bottles of wine.

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The weight of luggage is also needed. It seems that adults can only take less than 20 kilograms of luggage, and children are 10 kilograms. In terms of volume, the sum of length, width and height shall not exceed 130 cm. If it exceeds the requirements, it must be checked.

Children are interested in mysterious space, how to popularize science? Aviation experts came to help us. In 202 1 year, we launched two manned spacecraft. 17 In June, Shenzhou XII was successfully launched and landed safely on September 17. 10 16 10: 23, the Shenzhou XIII manned spacecraft was successfully launched, and the manned spacecraft was successfully separated from the rocket and entered the scheduled orbit.

During this flight, astronauts Zhai Zhigang, Wang Yaping and Ye Guangfu will stay in space for half a year, and they will carry out related work as planned.

At the astronaut's expedition ceremony, many people will wonder why they all carry a small box. In fact, astronauts are wearing spacesuits, not ordinary clothes, but a kind of pressure suit, and that small box is a ventilator connected with ventilation and oxygen supply equipment.

The detailed pictures of the above spacesuit are from China Power Science Picture Book, which is a popular science picture book for children over 4 years old, covering China manned space science, China high-speed rail science and super engineering science. The knowledge about space flight is reflected in the launch of the spacecraft. I'm going to space. Hello, space station.

This set of books has been recognized and recommended by authoritative experts such as academicians of China Academy of Sciences, Academy of Engineering and Chief Researcher of Railway Research Institute. The authors are cutting-edge workers in related fields, so that children can have a deeper understanding of China's advanced science and technology.

Seeing that astronauts can take off, children are envious from the bottom of their hearts and are particularly interested in the content of space. At this time, children can learn more about space-related knowledge.

"I want to go to space" leads children to understand the necessary contents of becoming an astronaut from the perspective of how to become an astronaut.

Astronauts need to receive 58 professional trainings in 8 categories, also known as the "58-step ladder" to space, and each content requires great patience and perseverance.

The book introduces theoretical knowledge learning, physical training, space environment adaptability training, psychological training, flight procedures and task training. Each item requires a lot of study and training.

For example, there are 8 or 9 basic knowledge studies, which need to be completed within 1 year and a half, involving aviation engineering and psychological knowledge.

Space environment adaptability training is to make astronauts adapt to the overweight phenomenon during space flight. The rotating arm of manned centrifuge is 8 meters long. Sitting on the rotating chair will cause symptoms such as brain hypoxia, blurred vision and accelerated heartbeat.

The book "I want to go into space" introduces the physical quality and necessary conditions of how to go into space, so that children can deeply understand the training of astronauts and understand the content of this work.

"Hello, Space Station" takes an astronaut's tone and leads children to visit the food, clothing, housing and transportation in the space station and the work content in the space station.

Their home in space is the core cabin of Tianhe, with five-star red flag and Chinese knot, which will give astronauts a deep sense of pride and intimacy.

If there is no clock in the core cabin of Tianhe, intelligent robots will wake them up and tell jokes to make them happy. There is no bed in their bedroom, so they can rest in their sleeping bags. They may wake up the next day and float on the ceiling.

In the lower right corner of this book is the development of wheat in plant Petri dishes. The wheat on every page is growing, from a wheat seedling to an ear of wheat, which is particularly intimate.

Our country's high-speed rail criss-crosses, extending in all directions, not only over mountains and mountains, but also across rivers. The picture book of China Electric Power Science also introduces a lot of knowledge about high-speed rail.

Don't talk about children. I'm curious about a lot of knowledge about high-speed rail. For example, what is the operating mechanism of high-speed rail? How do high-speed trains avoid each other?

In this book,

The high-speed rail is about to start.

Taking a high-speed rail trip of "Beijing West-Guangzhou South" as a clue, this paper tells the story of high-speed rail.

Body design, power supply system, tunnel design and other specific contents.

The reason why high-speed rail can run fast and smoothly is that besides the ingenious car body design, it also needs power supply system and high-quality and high-precision track support.

On the roof of high-speed rail

pantograph

Pantograph is responsible for transmitting the electric energy of the railway catenary to the train. The railway catenary that transmits electric energy covers all high-speed railway lines, which can ensure that the high-speed railway always transmits energy during operation.

High-speed rail has become an important travel tool for everyone, and its speed is fast and stable, which is an important feature of high-speed rail. The guarantee of safety lies in the professional responsibility of the staff in each position.

Taking the high-speed rail together as an introduction, the book tells about the operation, maintenance and driver's driving of Fuxing.

After we take the high-speed train, a flight attendant will tidy up our luggage. If the luggage is too big, passengers will be reminded to put it in a safer place. This is to prevent the suitcase from suddenly falling down and hitting people during operation.

In order to ensure driving safety, drivers are generally not allowed to go to the toilet. And in order to prevent the driver from fatigue, you need to step on the pedal every 30 seconds. If they don't step on it for more than 40 seconds, the train will brake suddenly.

In order to ensure the safety of every trip, the mechanic will check whether the pantograph is invaded, deformed and rusted by foreign objects; Check whether the wheels are cracked or deformed.

Every time we travel safely, we thank every hard-working mechanic, flight attendant, driver and other staff.

The whole set of books contains not only high-speed rail and aerospace, but also engineering knowledge.

"Super Bridge Opened to Traffic" tells how the Hong Kong-Zhuhai-Macao Bridge was built, and takes the children to the engineering site to find out. "Super Port Construction" tells the construction process and steps of Yangshan Port, and restores the knowledge of port construction for children; Taking the Inner Mongolia Railway as the prototype, the railway opened to traffic tells children about the geological survey, line design and gauge selection in railway construction.

This set of books can bring us such rich and interesting knowledge, thanks to editors, painters and recognized engineers. This list alone can be very long:

Cao Huisi, Master of Education in Tsinghua University, is a senior author of children's books.

Cao Guanglei, Master of Engineering in Tsinghua University, researcher in china academy of railway sciences.

Cheng Guanzhi and Tan are doctors of engineering and associate researchers in china academy of railway sciences.

Zhang Zhihui, member of China Popular Science Writers Association, is an expert in space science.

Overall design unit of CCCC Third Navigation Institute and Yangshan Deepwater Port.

Zhang Peng, painter, teacher of the Art Department of the School of Architecture and Art, Beijing Jiaotong University.

Guan Zhiguo, a cutting-edge illustrator at the School of Architecture and Art of Beijing Jiaotong University.

This set of China Electric Power Science Picture Book is a must-have picture book for children who love aerospace, high-speed rail and all projects, and it is also a must-have picture book for children in China to popularize science and technology.

Let children feel the technology, but also understand the knowledge behind it, engineering content, process design and so on.

Sow the seeds of science for them at an early age, waiting for them to blossom and bear fruit.

I want to learn a skill after graduating from junior high school. What should I study? For fresh graduates, young age, inexperience and lack of skills are the reasons why many companies and enterprises refuse to employ them, so it is very important to master a survival skill. So what is the future of junior high school graduation? Now is the Internet age, of course, learning Internet-related majors is more promising.

Advantages of learning Internet technology: 1, high starting point for work and large development space. Now there is a big IT talent gap and many employment opportunities. 2. The salary level is high. Due to the rapid development of the Internet and the huge shortage of talents, the general salary in the IT industry is relatively high. For example, the monthly salary of an engineer with working experience 1-2 years is between 6- 10K. 3. The job is stable and there is no need to change jobs frequently. IT practitioners are highly skilled occupations. As long as you are skilled, your salary will be higher and higher. Moreover, with the popularization of the factory model in the IT industry, more and more grassroots software developers are not limited to academic qualifications, so it is a great advantage for students who like it.

Girls can study design. For example, animation game design, film and television animation design, home design, interior design, UI design and other majors are very suitable for girls to study. Designers need to be very fashionable and have a keen grasp of color. Girls are born with advantages in this respect, so it will be easier for girls to learn UI design. Moreover, girls have the advantage of natural delicate mind, and it is easier to notice details that others are not easy to find. After studying design, it is easy for girls to find jobs, such as graphic design, UI design, visual design director, VI visual design, graphic advertising designer, web designer, commercial illustrator and so on.

What is better to learn after graduating from junior high school? I recommend e-commerce major.

On the internet, the world will become very small. A merchant can face consumers all over the world, and a consumer can shop in any merchant in the world. E-commerce reduces the intermediate links of commodity circulation and saves a lot of expenses, thus greatly reducing the cost of commodity circulation and transaction. In the future, the e-commerce industry will also develop faster, so the employment prospect of e-commerce is very good.

What is better to learn after graduating from junior high school? I recommend the new media major.

The new media major has a good employment prospect. Graduates have great social needs and a wide range of employment. You can engage in information collection, writing and editing in various portals, media business websites, websites of party and government departments, websites of enterprises and institutions, and you can also engage in website planning, network promotion, website construction and management related to new media.

What is better to learn after graduating from junior high school? I recommend the major of UI design.

Compared with programming, UI design is still very suitable for human learning. After learning UI design, you can get a stable and pleasant job, and at the same time, it is conducive to pursuing a higher quality of life, and you can get more enlightenment in the art field. Generally speaking, UI design is very suitable for learning.

Learning the internet is not bad. You can go to school to learn more.

computer industry

Junior high school students also like playing computer now, so if you study this industry, junior high school students will like it and be very interested. Junior high school students are younger and learn things faster. Studying the computer industry, whether you have a high degree or not, you can find your place in the work.

It is recommended to take Internet-related courses. If you like. You can find a better vocational and technical school. Then go to study for further study. For example, learn some software such as 3DmaxPhotoShop. So at least you have a skill. If you want to do technical work, many vocational and technical schools also have related courses. But in any case, you have to learn and get a certificate in the end, so that you can support yourself later. At present, there is a shortage of good artists or web designers, and the basic salary is not low. 3000-4000 is absolutely no problem. I wish you an early study. Don't neglect your study. Pure hand tour, please adopt it if you like. Thank you.

I can't give you a decisive answer if you graduate from junior high school. I can give you four suggestions:

1.360 line is the best, and every technology in every industry has a bright future.

2. What technology to learn depends on a good technical school, which can be considered from the aspects of school environment, employment situation, cooperative enterprises and teachers.

3. What technology to learn should be combined with your hobbies, and it is best to choose the one that suits you.

4. If you don't know what to study, learn an Internet-related technology in the Internet age, and the employment prospects are good.

I hope to adopt.