September 7-8 Theme: Vehicle Observation

      A white line on the crosswalk of a city street, also called zebra crossing. Zebra crossing originated from jumping stones in ancient Rome. As early as in ancient Rome, on some streets of Pompeii, chariots and horses crossed with pedestrians, which often caused traffic jams and accidents in the city. To this end, people separated the sidewalk from the carriage road, raised the sidewalk, and built blocks of stones protruding from the road near Ma Lukou as signs to instruct pedestrians to cross the street. Pedestrians can step on these jumping stones and slowly cross the road. When the carriage is running, the jumper is just between the two wheels of the carriage. Later, many cities used this method. At the end of the 19th century, with the invention of automobiles, the traffic in the city was rolling, and people were crossing the street at will, which hindered the traffic. The previous kind of stone jumping could not avoid the frequent occurrence of traffic accidents.

      In the early 1950s, the British designed a kind of crosswalk on the street, which stipulated that pedestrians should only take crosswalks when crossing the street, so a series of striking crosswalks appeared on the streets of London, which looked like white stripes on zebras, so people called it zebra crossing. When the driver sees this white line, he will automatically slow down or stop to let pedestrians pass safely. Zebra crossings are still everywhere in the streets.

Beijing released "Thirteen Questions on Haze Protection"

  CCTV News:In order to help you prevent haze scientifically, today (9th), Beijing Municipal Health and Family Planning Commission and Beijing Municipal Center for Disease Control and Prevention released.Thirteen Questions about Haze Protection.

  1. What is haze?

  Haze is a kind of weather phenomenon that a large number of tiny dust particles, smoke particles or salt particles are suspended in the atmosphere, which makes the air turbid and reduces the horizontal visibility to less than 10 kilometers. Haze is generally milky white, which weakens the color of objects, making bright objects in the distance reddish yellow and dark objects reddish blue.

  Relevant research conducted by Beijing CDC in 2013-2015 found that the main components of smog are water-soluble inorganic ions (nitrate, sulfate and ammonium salt ions, etc.), metals and metalloids (lead, cadmium, arsenic, etc.), and carbon substances (organic carbon and inorganic carbon).

  2. Does smog affect the human body?

  Smog has an impact on the human body! According to the data, the impact of smog on human body is generally divided into direct impact and indirect impact.

  Direct impact: When the concentration of air pollutants rises sharply in a short period of time, people may cause acute harm by inhaling a large amount of pollutants, resulting in respiratory tract and eye irritation symptoms, such as cough, sore throat and headache. If it is exposed for a long time, it will cause chronic inflammation, decreased immunity and allergies.

  Indirect effects: smog can affect our health through long-term indirect effects, such as affecting solar radiation and microclimate, producing greenhouse effect, destroying ozone layer and forming acid rain.

  3. Why should we reduce outdoor activities in foggy weather? 

  Relevant research conducted by Beijing CDC in 2013-2015 shows that the indoor PM2.5 concentration is 30% to 40% lower than the outdoor concentration in severe haze weather, so it is suggested to minimize outdoor activities in haze weather.

  4. Do you want to wear a mask when the smog comes? How to choose? How to wear a mask correctly?

  If you have to go out in foggy days, wearing a mask is the most important protective measure. Any mask has a certain protective effect, but it is recommended to choose a mask with good protection. 

  According to national standards, the protection level of masks is divided into four levels from low to high: D, C, B and A, which correspond to different air quality conditions.

  Grade A corresponds to "serious pollution" and is used when the concentration of PM2.5 reaches 500 micrograms per cubic meter. Grade d corresponds to "moderate and below pollution" and is suitable for situations where the concentration of PM2.5 is less than or equal to 150 micrograms per cubic meter.

  Wearing a mask should follow the instructions for use. When wearing, you must completely cover your nose, mouth and chin, and keep the mask close to your face. The better the tightness, the better the protection effect.

  5. What should I pay attention to when wearing a mask?

  Not everyone is suitable to wear a mask. The tight structure and filter material of the mask will increase the respiratory resistance and reduce the comfort.

  Different groups of people should pay attention to wearing masks: pregnant women should pay attention to their own conditions and choose products with better comfort, such as protective masks with exhalation valves to reduce exhalation resistance and sultry feeling; Children are in the stage of growth and development, and their faces are small, so it is difficult for general masks to achieve the effect of close fitting. It is recommended to choose children’s protective masks produced by regular manufacturers. When the elderly, patients with chronic diseases and special people with respiratory diseases wear masks, it is recommended to use them under the guidance of professional doctors.

  Masks are not suitable for wearing for a long time. On the one hand, pollutants such as particulate matter are adsorbed on the outside of the mask, resulting in an increase in respiratory resistance. On the other hand, bacteria, viruses, etc. in exhaled breath will also accumulate inside the mask. Failure to breathe fresh air for a long time will make people’s own immunity decline.

  Non-disposable masks should be cleaned regularly, and the filter membrane should be replaced. When they are not worn, they should be kept properly.

  6. How to pay attention to personal hygiene after going home for outdoor activities in foggy weather?

  After going out for activities in foggy weather, clothes, nose and mouth, and bare skin will be attached with a large number of pollutants in the smog, which will be harmful to health. Therefore, it is suggested to take off your coat, wash your face, wash your hands, and wash your mouth and nose in time to reduce pollution.

  7. Why should children and the elderly pay more attention to smog protection?

  Children are in the stage of growth and development and are more sensitive to the environment than adults. The elderly have low body resistance and usually suffer from basic diseases. A large amount of dust and particles in the smog will stimulate the respiratory tract and easily cause respiratory irritation symptoms. Therefore, children and the elderly should pay more attention to the protection of smog.

  8. What should I do if there are symptoms such as cough and sore throat in foggy weather?

  The acute harm caused by people inhaling a large amount of pollutants in haze weather is mainly manifested in respiratory tract and eye irritation symptoms, such as cough, sore throat, red swelling and tears in eyes, etc. It is suggested that symptomatic treatment be taken when necessary to alleviate the symptoms.

  It is suggested that sensitive people with basic diseases should reduce outdoor activities in foggy days, but also reduce to crowded places with dirty air, pay attention to personal hygiene, wash their hands frequently, and pay attention to increasing or decreasing clothes at any time to maintain good physical condition.

  9. How do families choose air purifiers?

  The air purifier has a certain effect on purifying the air. When selecting, the first thing to do is to make clear the purpose of use, and to buy a purifier with purification effect on PM2.5.

  Second, we should pay attention to the performance indicators of the purifier. According to national standards, a truly effective air purifier should achieve the energy efficiency index of "three highs and one low".

  High clean headroom: The clean air volume (CADR) is the purification effect index of the purifier. The greater the CADR value, the stronger the purification ability of the purifier and the better the purification effect.

  High cumulative purification capacity: The higher the cumulative purification capacity (CCM) value, the more pollutants to be purified and the longer the life of the filter screen.

  High energy efficiency value: The higher the energy efficiency level, the more energy is saved.

  Low noise level: the working noise of the instrument is generally lower than 50 decibels, which is relatively quiet. When purchasing, you can observe the prototype for intuitive feeling. 

  Thirdly, in order to achieve the purification effect, the air purifier must be turned on for a certain period of time according to the room area, the power and purification efficiency of the purifier, so as to effectively reduce the pollution degree of indoor pollutants. Pay attention to the product manual when purchasing. Generally, the product manual indicates the test report or certificate of conformity issued by the air purification effect testing unit. Products that have not given experimental conditions and are too simple or even absolute should be purchased carefully.

  10. What should I pay attention to when using the air purifier?

  Attention should be paid to the purification effect of the air purifier during use, and it is suggested to replace or clean the filter material according to the product instructions. If it is found that the purification effect is obviously reduced, or that there is an odor after the air purifier is turned on, it is necessary to replace the filter material and clean the filter in time. Moreover, the purification materials in the air purifier also have a service life. In order to avoid secondary pollution, they should be replaced in time according to the pollution degree and service time. When indoor pollution is serious, the replacement frequency of filter media can be increased. Self-protection should be done when replacing the internal materials of the air purifier. For example, gloves and masks should be worn when replacing the filter screen to prevent contact and inhalation of trapped harmful substances during replacement.

  11. Does smoking affect indoor air?

  Indoor smoking has a great influence on indoor air. The experimental data of Beijing CDC show that the indoor PM2.5 concentration can reach more than 500 micrograms per cubic meter when one cigarette is burned in a 30 cubic meter experimental cabin. Therefore, it is recommended to avoid smoking indoors in foggy weather.

  12. How do families cook reasonably in foggy weather?

  Home cooking is also an important source of indoor PM2.5 Relevant research by Beijing CDC shows that the instant PM2.5 concentration can exceed 800 micrograms per cubic meter even if the cooking methods such as frying, frying and frying are used in the kitchen (doors and windows are closed). And can spread to the living room, bedroom and so on to a certain extent. However, the concentration of PM2.5 in the kitchen does not change much when cooking by steaming or boiling.

  Therefore, it is suggested that when cooking in foggy weather, the kitchen door should be closed and the range hood should be turned on; During the period of heavy pollution, try to steam and cook; After cooking, you should continue to turn on the range hood for 5 to 15 minutes.

  13. How to pay attention to the indoor environmental sanitation in foggy weather?

  The indoor activities of human beings increase in foggy weather, which will lead to the gradual increase of indoor PM2.5 concentration when doors and windows are closed. Therefore, in heavily polluted weather, wet cleaning method should be adopted for indoor cleaning, and wet mops and rags should be used for indoor cleaning, and the frequency should be increased appropriately. If the smog clears, open the window in time for ventilation for at least 15 minutes. (CCTV reporter Zhang Jing)

Development Status of Artificial Intelligence AI Industry in China

     1. Development status of AI

    With the advent of the fourth industrial revolution, artificial intelligence has gradually entered reality from science fiction. Since the concept of artificial intelligence was first put forward in 1956, the development of artificial intelligence has experienced ups and downs. With the breakthrough of core algorithms, the rapid improvement of computing power, and the support of massive Internet data, artificial intelligence finally ushered in a qualitative leap in the second decade of the 21st century, and became the focus of science and technology attracting worldwide attention.
 
    For China, the development of artificial intelligence is a historic strategic opportunity, which is crucial to alleviate the pressure of population aging in the future, meet the challenges of sustainable development and promote the transformation and upgrading of economic structure. As the core driving force of the new round of industrial transformation and the strategic technology leading the future development, the state attaches great importance to the development of artificial intelligence industry. In 2017, the State Council released the "New Generation Artificial Intelligence Development Plan" to strategically deploy the artificial intelligence industry; In the government work reports in March 2018 and March 2019, it was emphasized that it is necessary to accelerate the development of emerging industries and promote research and development of artificial intelligence.app; applicationCultivate a new generation of information technology and other emerging industrial clusters to expand the digital economy.
 
    Since the deep learning algorithm was put forward in 2006, the application of artificial intelligence technology has made a breakthrough. Since 2012, the explosive growth of data has provided sufficient "nourishment" for artificial intelligence, and deep learning algorithms have achieved breakthroughs in speech and visual recognition, making it possible for the artificial intelligence industry to land and commercialize.
 
    2. Development layout of AI


    On the whole, China’s artificial intelligence industry has formed a pattern of coordinated development in Beijing-Tianjin-Hebei region, Yangtze River Delta region and Pearl River Delta region, especially in the eastern coastal areas. According to IDC’s Evaluation Report on the Development of Artificial Intelligence Computing Power in China in 2019-2020, the TOP5 cities in China’s list of artificial intelligence cities in 2019 are Beijing, Hangzhou, Shenzhen, Shanghai and Guangzhou in turn.
 
    Among them, Beijing has a relatively mature layout and a relatively complete industrial chain. In particular, Zhongguancun Science City and other institutions provide favorable policies, technologies and talents for the development of Beijing’s artificial intelligence industry. At present, the number of enterprises with artificial intelligence in Beijing ranks in the forefront of the country, about 300.
 
    The number of artificial intelligence enterprises in Shanghai is less than that in Beijing, but it is also ahead of other provinces and cities. Shanghai plans to build an artificial intelligence highland and create a first-class artificial intelligence innovation ecology. At present, it has laid out a "human-shaped" spatial structure, which is distributed in 8 regions and 11 industries. In addition to Shanghai, Jiangsu, Zhejiang and other places are also actively deployed, and artificial intelligence enterprises are more concentrated.
 
    Guangdong’s scientific and technological innovation ability is also in a leading position, especially the planning and development of Guangdong-Hong Kong-Macao Greater Bay Area attaches importance to the layout of artificial intelligence. Up to now, Guangdong Province has successfully identified two batches of 8 parks as "Guangdong Artificial Intelligence Industrial Park". In addition, relying on the important opportunities of national characteristic towns, thousands of enterprises and thousands of towns projects, the Pearl River Delta National Independent Innovation Demonstration Zone and the Guangzhou-Shenzhen Science and Technology Innovation Corridor, Guangdong encourages local cities to speed up the application layout of artificial intelligence industry and build a number of artificial intelligence towns.
 
    Hangzhou attaches great importance to the basic research of artificial intelligence. The "Xiangyun" DRMS system is the first data resource platform based on artificial intelligence in China. It is a full-volume, real-time "data warehouse" of Hangzhou’s urban data brain, which can provide functions such as real-time data collection, data Rubik’s cube and data governance, and creatively apply artificial intelligence to data exchange, sharing and opening. Driven by leading enterprises such as Alibaba, Netease, zhejiang dahua, Hikvision and Straight Flush, Hangzhou has formed a number of distinctive applications in smart cities, finance and other fields. In addition, Hangzhou actively builds an artificial intelligence industrial cluster, taking Hangzhou High-tech Industrial Development Zone and Hangzhou Chengxi Science and Technology Innovation Corridor as the core, optimizing the layout of the city’s artificial intelligence industrial structure and realizing orderly competition and dislocation development.
 
    3. Market demand and scale of AI
 
    China’s artificial intelligence industry focuses on diversified application scenarios. Under the guidance of China’s national conditions and market demand, it aims at the practical needs of intelligent transformation and upgrading in transportation, medical care, finance, security and other fields, and focuses on selecting one or several key areas for key layout, focusing on the whole life cycle of big data in the industry, and taking the lead in promoting commercialization by optimizing scene design. In recent years, the competitive situation of differentiation and regionalization has attracted a large number of emerging artificial intelligence enterprises in China, which has promoted the continuous outbreak of China’s industrial scale.
 
    According to the statistics of Gaozhan think tank, the scale of China’s artificial intelligence industry reached 8.31 billion US dollars in 2018, and by 2019, the industrial scale exceeded 10 billion US dollars, reaching 10.55 billion US dollars. Among them, the industrial scale of AI basic layer, technology layer and application layer reached 1.99 billion US dollars, 3.06 billion US dollars and 5.5 billion US dollars respectively. Driven by policies and markets to accelerate the implementation of a new generation of artificial intelligence application scenarios, it is estimated that the industrial scale will approach 30 billion US dollars in 2022.
 
    Chart: The scale of artificial intelligence industry in China from 2015 to 2019 (USD 100 million)
    Source: Gaozhan think tank
 
    4. Number of AI enterprises
 
    According to the statistics of Gaozhan think tank, by the end of 2019, there were 779 artificial intelligence enterprises in China, accounting for 21.9% of the total number of artificial intelligence enterprises in the world, second only to the United States. In terms of the distribution of start-up time, the establishment time of artificial intelligence enterprises in China concentrated in 2010-2016, accounting for 67.3%, and reached its peak in 2015, and the number of enterprises established in 2016-2019 gradually declined.
 
    Chart: Time distribution of artificial intelligence enterprises in China as of 2019.
    Source: Gaozhan think tank
 
    In terms of geographical distribution of enterprises, artificial intelligence enterprises in China are mainly concentrated in the three metropolitan areas of Beijing-Tianjin-Hebei, Yangtze River Delta and Pearl River Delta, accounting for 44.8%, 28.7% and 16.9% respectively. Among the provinces and cities, artificial intelligence enterprises are mainly distributed in Beijing, Guangdong, Shanghai, Zhejiang, Jiangsu and other places, accounting for 88.4% of the total.
 
    Chart: Regional distribution of artificial intelligence enterprises in China in 2019
    Source: Gaozhan think tank
 
    5. Market structure and market share of AI enterprises
 
    The artificial intelligence application market mainly includes three aspects: computer vision application, speech semantic application and machine learning algorithm platform. Among them, computer vision application scenarios are rich and have great commercial value, and about 40% of artificial intelligence enterprises are concentrated in the field of visual artificial intelligence. According to the statistics of Gaozhan think tank, in 2019, the largest manufacturers in China’s artificial intelligence computer vision application field included Shangtang Technology, Defiance Technology, Yuncong Technology, Yitu Technology, Hikvision, Innovative Qizhi, Smart Eye Technology and Dahua Co., Ltd., accounting for 79.5% in total; The manufacturers occupying the largest market in the field of artificial intelligence speech semantic application include Iflytek, Tulsi and Xiao I.robot, Baidu Net News, Jietong Huasheng, Yunzhisheng, Shenzhou Taiyue, Alibaba Cloud and Spirits, accounting for 39.2% in total; The leaders of artificial intelligence algorithm learning platform include Fourth Paradigm, Alibaba Cloud, Baidu, Tencent Cloud, AWS and Microsoft. The main participants include Merrill Lynch Data, Jinshan Cloud, Jiuzhang Yunji, Intelligence Explorer, Xinghuan Technology, Xinhua III and Neusoft.
 
    Chart: China artificial intelligence market pattern in 2019

The initial heart of the new era "Awesome, My Country"

Editor’s note:

  The documentary film Awesome, My Country records the super projects such as China Bridge, China Road, China Car, China Port and China Net, and shows the landmark scientific research achievements that lead people to a new era, such as the largest radio telescope FAST in human history, the world’s largest offshore drilling platform "Blue Whale 2", the research and development of maglev train and 5G technology.

  The young post-90s and post-00s, as a "powerful generation", will witness and build a socialist modernization power in the next 30 years. "China Youth Daily" invited a group of college students to write about the feelings of watching "Awesome, My Country" and write down their initial feelings in the new era.

  (This edition is supported by China University Media Alliance)

  ————————————–

Faster, how can I slow down?

Xu Jingran, 2017 graduate student of Chinese Academy of Sciences.

  "What can I do?" I often ask myself this question, but after I went to college, the frequency of asking myself increased again. When I watched "Awesome, My Country" in the cinema, I was half proud and half nervous, as if I had pulled out some thoughts, lowered my head from a height, leaned over to examine and even asked myself: "What can I do? What can I do for this country and society? "

  The film shows China’s brilliant achievements in scientific and technological development, economic construction, national defense construction, environmental protection, poverty alleviation, internal affairs and diplomacy since the 18th National Congress of the Communist Party of China. For me, the most inspiring thing in the film is the display of a series of major construction projects and scientific and technological achievements in China in recent years: the world’s largest radio astronomical telescope "FAST", the largest offshore drilling platform "Blue Whale 2", the most advanced quantum communication satellite "Mozi", the high-speed railway "Fuxing" with a speed of up to 350 kilometers per hour, and Airbus. …

  This makes me feel excited and scared: I am excited to board a great ship of the times, but I am afraid whether I can make a little contribution to this great ship. No one asked me to do anything, but I think it is a kind of responsibility, a kind of self-questioning, self-encouragement, self-alarm and self-reflection derived from "being proud".

  Soon after school started, I got together with a senior sister. When chatting, she brushed the mobile phone news, and her expression suddenly collapsed. "Teacher Nan Rendong died, and I interviewed him." The atmosphere suddenly cooled down and we ended the party hastily. At that time, I still couldn’t understand the complicated feelings of my senior sisters. These scientists seemed to be very far away from me, just a name.

  Later, I visited the two bombs and one satellite memorial hall and the innovation exhibition of the Chinese Academy of Sciences. I listened to stories such as "Mr. Turbulence can’t get away". I watched the WeChat public platform "Voice of Chinese Academy of Sciences" and pushed the latest scientific research achievements of scientists and technicians every day: the dark matter particle detection satellite "Wukong", the world’s first cloned monkey, the 11-bit cloud superconducting quantum computing platform, and the world’s first "chorea" gene pig & HELIP; … New discoveries and progress emerge one after another.

  I took classes with academicians and people whose names have been seen in textbooks. My teachers are meticulous academically and love students as much as children in life; My classmates are serious and lovely. In the class of dialectics of nature, the classroom presentations submitted by everyone are "Qinghai-Tibet Plateau Uplift and Its Influence", "The Mystery of Solar Neutrino Absence" and "The Loss of Mathematical Uncertainty — — Godel’s great discovery "and so on are" shivering "topics. This makes me feel that I am so close to science that science and scientists are alive by my side.

  Everyone in this school is different, but what they have in common is "working very hard". Whenever, they are rushing to the next thing to do. A biology teacher once said, "Doing scientific research is like washing clothes in the dark. You can’t see the real-time progress of others’ washing, so you should keep washing, try your best to wash, and you can’t stop until the light comes on."

  Whenever I see the persistence in these people’s eyes, I will tell myself, "How can you slow down if you are faster?" History will only care for the determined, the enterprising and the fighters, and will not wait for the hesitant, the lazy and the fearful.

  After watching the movie, any China people will strongly feel their sense of identity, belonging, security and pride in their motherland. My friends, study astronomy, ocean, geology, biology, artificial intelligence … … Frankly speaking, the first year of graduate students is like a screw. What you can do is to drill and tighten it.

  We are scattered in the basic unit of scientific research — — The 114 research institutes in China insist on facing the major international frontiers, facing the national strategic needs and facing the main battlefield of the national economy, and writing scientific and technological achievements on the land of the motherland. Starting from basic scientific research, we should explore things close to the truth, find ways to make life happier, and break the status quo to meet more possibilities.

  I have no doubt that there will be future scientists among my friends, which makes me a little envious of not studying science and engineering anymore. I study science communication, and I am very satisfied that I can call myself half a scientist.

  Walking on the path to the classroom, thinking about the time allocated to each academic task, I think, I am willing to be a purely practical person. "This era is too good, you have to work hard, you can’t be unworthy of this era."

Dreams are like a seed.

Duan Jingwen, a 2016 undergraduate of Nankai University.

  Recently, I went to the cinema to watch Awesome, My Country. Before the movie started, an old woman in a wheelchair was pushed into the cinema and sat next to me. She has white hair and trembling legs, and her face is covered with wrinkles and age spots left by years. As the film story unfolded, the tears on grandma’s face flashed in the dim light, and the crutch trembled.

  Many people may feel a little confused after watching "Amazing, My Country": "How big is the gap between national strength and individual happiness? How close will national prosperity be to everyone? " At this moment, my grandmother’s tears answered me. Probably only those who have experienced the history wash can understand what the power of this country really means.

  "At that time, I walked from our home to Yunnan for many days. It was a bus and a train. Zhengzhou stopped for a long time and Zhuzhou rested for a night. I also sent some big cakes to satisfy my hunger … …” On the plane to Kunming to see his comrades-in-arms, Grandpa slowly told the story of going to the army that year. Now, the worrying "many days" has been shortened to three hours on the plane, and many long hardships have been replaced by convenient high-speed trains.

  Undoubtedly, high-speed rail has become a new business card for China, which has brought us closer to our hometown. In Spring Festival travel rush, the high-speed trains lined up on the track carry thousands of homesick hearts like bullets on standby, allowing homesick people to cross the north, south, east and west, and come and go freely without being trapped by homesickness.

  Last year, when I went to Wuhan by train, I crossed the Wuhan Yangtze River Bridge. This bridge, which was completed in 1957, witnessed the Yangtze River water rolling eastward, taking away the decline of the nation and bringing about the strength of the country. In addition to the Yangtze River, China Bridge also stands on the vast sea, among the steep mountains, and at the junction of national history and future. From then on, it is no longer difficult for Shu Dao to go to the sky, and the country has the ability to let people go out of places where only birds used to fly out.

  When I saw my hometown, a county-level city also has seven expressways, I really felt that the strength of the country is closely related to my personal life, and I can proudly say, "My country is really powerful!"

  "Awesome, My Country" shows us many achievements made by the country since the 18th National Congress of the Communist Party of China. The country is no longer a rose with only fragrance but no thorns in Lao She’s Four Generations under One roof, and every citizen no longer needs to use silence to cover up his grief over national subjugation like Qi Ruixuan. Festive scenery does not treat each other, Sangtian blue sea needs to be changed in an instant, looking back at history, the predecessors have gone through thousands of difficulties to make China stand in the east of the world again; Looking forward to the future, a better life depends on our common struggle and common achievement.

  A dream is like a seed. If everyone in China can plant it in his heart and take good care of it, the Chinese dream will come true when all the seeds take root, sprout, blossom and bear fruit.

"Powerful country generation" has a long way to go.

Zhai Yujie, a 2015 undergraduate of Southwest University.

  "In the wind and rain, the voyage is magnificent, thousands of miles away in Wan Li, the sun is in my heart, my dream shines ahead, and your faith ignites courage … …” Accompanied by soothing and inspirational music, my heart repeatedly replayed "Awesome, My Country".

  In the form of documentary, the film presents the development achievements of the motherland on the big screen, pushes and pulls the swaying motion lens and degradation lens, brings together scattered pictures and scenes, and conveys to us an image of the motherland that is at the forefront of world development.

  A series of high-speed trains shuttle through the motherland, from the northeast of Snow Country to tropical Hainan; Cars are running on the expressway, reshaping the new symbol of China geography; The automated seaport terminal can handle the world trade quickly and effectively; China’s network has achieved global connectivity in minutes. During the running, China also kept slowing down, stopped to look back, and reflected on various problems encountered in the process of modernization.

  Tears and laughter of Luocuo and Rosandanda, poverty alleviation cadres in Zhaxigang Village, Xizang Autonomous Region, children having free lunches in the mountains, China soldiers "No matter where you are, don’t forget that behind you is a great motherland, and there is a speed called China’s rescue, and there is a kind of luck that I am from China" … … The film’s rigorous but vivid commentary expresses the rapid development of the motherland in a slow-flowing daily life.

  A British media reported the transition from the old platform to the new platform at Longyan Railway Station in Fujian, which only took nine hours, which made the British amazed at the advanced infrastructure project in China. Musk, an American entrepreneur who just sent a sports car into space, couldn’t help forwarding this report and praised that "China’s advanced infrastructure is developing more than 100 times faster than the United States".

  The mountain peaks that Shan Ying once couldn’t fly can now be climbed in 10 minutes; It used to take 12 hours from Beijing to Shanghai, but now it only takes 4.5 hours; 2.99 million base stations and 890 million users, and the total length of optical cable lines in China has reached 30.41 million kilometers; China has contributed more than 30% to the world economy, becoming the first engine to drive the global economy … … Long after the film ended, these pictures and figures still reverberated in my mind.

  The grand vow of the great rejuvenation of the Chinese nation is echoing in the east of the world. The film not only brought the double shock of vision and soul, but also made China people proud and proud, and made our younger generation full of fighting spirit and vitality!

  The first three hours of the film’s release broke the box office record of this kind of film in China. The noteworthy data is that young people constitute the main force of watching "Amazing, My Country". Cat’s eye data shows that 55.5% of the audience in this film are 20-29 years old. On the Internet, a large number of post-90s and post-00s praised the film. The young mode of communication makes the young audience, as the main force of the box office, feel cordial and causes our personal thinking.

  As soon as Qiao Wenwen, a college student, walked out of the cinema, she excitedly took out her mobile phone and chatted with her grandmother in the countryside, telling her that more welfare policies would be distributed to the grassroots. Qiao Wenwen’s dream is to become a grass-roots worker, and transform the mountains that gave birth to her with both hands and the villagers. Wang Jie Shao, a young man from Lanzhou, said that it takes six hours to get home by high-speed train when he goes home for the New Year. In the past, it took more than ten hours to get a hard seat in the Spring Festival travel rush train.

  At the beginning of the film, Dr. Sun Yat-sen’s lifelong struggle is to hope that China will become "the richest country in the world, the happiest country in the world, and the people of China will become the happiest people in the world". Today, the rapidly developing motherland has created a good employment environment and a world of innovation for us. As a "powerful generation", this is the best time and a challenging time, and we have a long way to go.

After 90, we should also tell the "China story"

Zhong Yang, a master student of Huazhong University of Science and Technology in 2016

  After reading "Amazing, My Country", I can’t calm down for a long time like an electric shock. I am not only confident and proud of the development achievements of my motherland, but also moved by the ordinary stories of countless people who are fighting in the front line of building the motherland. When the shocking sound effect, the magnificent narrative picture, and the eloquent story are integrated, my blood is boiling all over and my eyes are wet many times, and I sincerely give my thumbs up to praise my motherland.

  In addition to the magnificent narrative, the film also shows the lives of ordinary people struggling in their jobs from an equal perspective. What impressed me the most was a Tibetan poverty alleviation cadre. In order to persuade her poverty alleviation object to move, she tried her best, tried her best, and made a lot of efforts, just for the poverty alleviation object to live a good life, but her kindness was often not understood. She is the epitome of countless poverty alleviation cadres in China. She has devoted herself wholeheartedly and selflessly, just to contribute to the construction of the motherland.

  This poverty alleviation cadre is about my age, which is one of the reasons why she left a deep impression on me. She is so young, but she shoulders the mission of getting rid of poverty and working silently in precision poverty alleviation, which has become the pillar of the times. In addition to being moved, I am also rethinking: What can I do for the construction of the motherland?

  As future news media practitioners, we have the obligation to open up the public opinion field between the government and the people, to assume the responsibility of media supervision, and to strive for more right to speak in the public opinion field of the international community with pen as a sword and mouth as a knife. Have the obligation to tell the "China Story" well, and inherit and spread the profound and profound China culture from ancient times to modern times.

  As a future news media practitioner, in my daily life, I also want to contribute to the cultural communication of the motherland. During the exchange study in Taiwan Province, I became a Chinese volunteer, teaching foreign students Chinese and actively carrying out the mission of "telling the story of China and spreading and inheriting China culture". I found that foreign students not only revere the long-standing traditional culture of China, but also yearn for the lively and open modern culture of China. "The whole world is speaking Chinese" not only exists in songs, but also is fully reflected in our real life.

  In addition, I found that Taiwan Province people’s understanding of the mainland is not comprehensive enough, but in fact, many young people in Taiwan Province are full of yearning for the mainland. They have been exposed to the development status of many mainland cultural industries through the Internet. Mainland film and television dramas, mainland music, mainland variety shows and mainland apps are imperceptibly affecting young people in Taiwan Province. With the economic development of the mainland of China and the introduction of the policy of Taiwan Province compatriots coming to the mainland to enjoy national treatment, many Taiwan Province people have the opportunity to come to study, find jobs, start businesses and live. Through on-the-spot experience, they can feel the changes in the mainland and get to know the real mainland. They have virtually become the folk mouthpiece of cross-strait exchanges and spread the real mainland message.

  As media practitioners and researchers, we should also devote ourselves to presenting a more comprehensive, three-dimensional and positive image of China to people all over the world through various media channels and forms, so as to enhance the all-round attraction of China culture.

  The post-90s generation was once regarded by public opinion as "tricky in character and weird in behavior", a bit like the "beat generation", but now, we are given a new mission and responsibility — — I am sincerely proud of the "powerful generation". We should constantly improve ourselves and actively become young people with ideals, morality, education and discipline.

  The "powerful generation" happens to be at the historical intersection of the goal of "two hundred years". History gives us a mission and also gives us opportunities. It is our advantage of "maverick, unconventional and pursuing individuality" that makes us full of innovative spirit and infinite possibilities in the future.

  In the new era, our small life will be like a meteor, breaking the sky, blooming gorgeous sparks in the long river of history, reflecting the meaning of life. The "powerful generation" has a heavy sense of responsibility, but at the same time, their self-confidence is stronger. There are so many charming people in the country, and it depends on the present.

I am willing to be a pawn for a strong army and jump down to the grassroots.

Liu Weichao, Ph.D. student of the 17 th Team of Political College of National Defense University

  It is lucky and even greater to throw yourself down and do one thing well all your life.

  "Amazing, My Country" begins with the introduction of a China Bridge that can be called a miracle of the world — — Hong Kong-Zhuhai-Macao Bridge. What moved people was not only its grandeur, but also the memory of its chief designer Lin Ming: "When I first accepted this project, I was 48 years old. Today, the final joint installation is carried out, and I am over 60 years old. " In the past twelve years, my hair has become fashionable, which makes people feel the passing of time. But what is even more impressive and admirable is the self-confidence evaluation of Mr. Lin’s designer: "What we see here is the best equipment, the best construction method, the best technology and the best project in the world." Behind the four "best in the world", it is the dedication and concentration of the great country craftsmen represented by Mr. Lin.

  This dedication and dedication have deepened my understanding of "going to the place where the motherland needs it most" and solved the problem of "going to the grassroots" that has been bothering me for a long time. My father is a veteran. From his age of eighteen to mine, he devoted his best forty years to the fiery grass-roots military camp. May be influenced by my father’s subtle influence, after graduating from a local university, I was admitted to the graduate school of the military academy; And after three years, I was fortunate to be one of the few direct doctoral students in National Defense University. At the beginning, I chose to join the army, hoping that one day, like my father, I could burn myself and exercise myself in the fiery melting pot of grass-roots military camps. After reading the blog, my initial heart was shaken from time to time, and I was concerned about which unit was closer to home and more comfortable.

  Until I saw the miracle of China and the silent efforts behind the speed of China in Awesome, My Country, I understood. Yes, the grassroots are indeed more bitter and tired, and they will encounter more difficulties. However, if you are afraid of hardship and tiredness and covet "promotion and wealth", you can "please go elsewhere". Why did you join the army with a pen to serve the country when you graduated from college? Young people have many ways to live: working close to home, surrounded by relatives and friends; Or decent and tidy, with high income … … These are not necessarily the most suitable for your life. Because what really suits you is never the appearance of reality, but the inner feelings brought by your own values and beliefs. "Today’s responsibility lies not with others, but with my youth." I threw myself down and made myself a pawn on the road to strengthening the army. I think it is more glorious than "setting a small goal and earning him 100 million yuan."

  Do not seek comfort, unwilling to be mediocre. Dedicated to the grassroots, but also a hero!

  As a "powerful generation", besides having a firm will to be down-to-earth and rooted at the grassroots level, we should also focus on establishing the following three consciousnesses: First, we should establish mass consciousness and fight as soldiers. First of all, uphold the concept that "doctors and masters are all soldiers" and truly blend in with their comrades. A first-class army needs a first-class team, and it should be the first step for itself to enter the grassroots.

  The second is to establish a model consciousness. There are many examples in Awesome, My Country. One sentence "Look at me" is better than ten thousand sentences "Give me the job". Combining with oneself, we must first take the lead in ability, learn from teachers, classmates, books and practice, and effectively improve our own ability and quality; In the future grass-roots work, we should give play to our comparative advantages of strong understanding and fast learning, and give play to the leading role of the backbone. In addition, it is necessary to take the lead in attitude, have a good command of knowledge and skills, and it is difficult for a person to master everything. However, in the face of hard work, tiring work, dirty work and dangerous work, he should dare to be the first to show his responsibility and attitude of "dedicating himself to the mission and leading troops" in the Political College.

  The third is to establish a sense of learning. Doctors and masters are all soldiers, but they can’t just be soldiers. First of all, we must establish a lifelong learning concept. The progress of various undertakings in "Awesome, My Country" requires builders to keep up with the pace of the times and keep learning and moving forward. The military affairs of grass-roots companies are complicated, and it is easy for people to delay their studies and forget to study under various excuses, so they should always be self-vigilant; Secondly, it is necessary to change from information sender to knowledge sharer. The information transmitter was once one of the important roles of grass-roots political cadres and the key mechanism for political work to play its role. However, with the continuous improvement of the informationization and intelligence level of the military camp, being a doctor does not necessarily have more information resources to serve comrades. Therefore, it is necessary to change roles and use the academic thinking cultivated by scientific research experience to reprocess and further process "information" so that "information" can become "knowledge" more suitable for the needs of officers and men.

  Looking back at history, the fate of the country and the nation has always been closely linked with the strength of the army and the victory or defeat of the battlefield. In today’s China, the goal of national rejuvenation has never been so firm, and the desire to realize the Chinese dream has never been so strong. A generation has a generation’s mission and responsibility, and the heavy responsibility of strengthening the army falls on our shoulders. If we want to provoke this burden, we must jump down. As a "powerful generation", I don’t want to be named Hou, I hope Hai Boping.

A new era of temperature, strength and grace

Ye Zipeng, a master student majoring in Party building at the Party School of the CPC Central Committee.

  The word "time" makes people feel that there is a sense of historical vicissitudes, which seems out of reach. When we read or hear the stories of a certain era, we often envy or feel the people who are in different times. But just as we can’t detect the revolution of the earth, it is difficult for us to have an overview of the magnificent times when we are there.

  Fortunately, there is such a film, "Awesome, My Country", which shows us the era we live in — — This is a new era.

  The new era is an era with temperature. From the three generations of Bashang plantation to the health administrators who work in households, from the poverty alleviation of the whole population to the weaving of the world’s largest basic medical security network … … Every ordinary hero’s dream should not be hidden in the snow. This is the temperature in China.

  The new era is an era of strength. From "Jilong" going into the sea to "Mozi" going up to the sky, from "Sea Beast" Blue Whale 2 to "Five-hundred-meter Aperture Spherical Radio Telescope (FAST)" FAST, from "Liaoning" aircraft carrier going out to sea smoothly, to C919 aircraft successfully soaring … … The hard struggle behind it turned into a sonorous step.

  The new era is an era of grace. From the community of human destiny to the "One Belt, One Road" strategy, from the establishment of the AIIB to the establishment of the Silk Road Fund, from the APEC meeting in Beijing by Yanqi Lake to the G20 Summit in Hangzhou by Xizi Lake … … Today’s China is closer to the center of the world than ever before, taking on more responsibilities in the center of the stage.

  Not long ago, a tribute film to Tsinghua University also triggered a discussion boom. What makes people unable to calm down for a long time is the different times of each generation and the choices that people made in different times. "Ask nothing about the west and the east" has also become a hot word for a while. This word is selected from Tsinghua University’s school song "Lide makes a point, asks nothing about the West and the East". "Nothing to ask about the West and the East" is actually a kind of "pursuit without personal utility". It is actually a blend of feelings of home and country and historical responsibility, and it is also an initial heart belonging to the times.

  This year is the year of reform and opening up. The extension line of reform and opening up has been drawn to this day, and we still have many problems to face, to think about and to solve. The situation we are facing now is no easier than it was 40 years ago. However, it is this difficulty that has become the responsibility of our generation.

  Without reform and opening up, there would be no "awesome, my country" today. Looking back at the whole time axis of reform and opening up, the beginning is ideological emancipation, the big discussion about the standard of truth. Nowadays, we still need to emancipate our minds.

  We do face many difficulties and challenges, at the same time, we also face many opportunities and opportunities. At this moment, we need to hold the banner of reform and opening up higher.

  Looking back at history, from the household contract responsibility system in Xiaogang Village of Fengyang to the implementation of the "streamline administration, delegate power, strengthen regulation and improve services", from the rapid rise of Pudong New Area to the spread of the "Belt and Road", it is always inseparable from our understanding of the national conditions, our understanding of practice and our grasp of the present. The new era is a promising period of historical opportunities, and we should stick to seeking truth from facts. Seeking truth from facts as the motto of my school, I think its significance lies not only in my school, but also in a wider range.

  Countries in the new era need to seek truth from facts, and seeking truth from facts here is a determined force. "Don’t take the rigid and closed old road, and don’t take the evil road of changing the flag." For a country, the choice of development path must be deeply rooted in the soil of the motherland, and it is not allowed to "digress" at all. This requires firm self-confidence and finding strength in self-confidence.

  The society in the new era needs to seek truth from facts, and seeking truth from facts here is a joint effort, "thinking in one place and making efforts in one place." With the rapid change of society, flowers are becoming more and more attractive, and various values are rampant. Individuals in society should ask themselves what kind of us are needed for the current development. We need to build a broader consensus and follow it to make the society better.

  Young people in the new era need to seek truth from facts. Seeking truth from facts here is a relay to "walk the long March of our generation". Each generation has different historical experiences and different historical missions. But the same thing is, history has chosen those who have chosen the motherland without exception, and those who have striven and taken responsibility without exception. Only when the younger generation has ideals and can successfully take over the "baton" of history can the country and society have hope.

  The country, society and youth in the new era need to return to the initial heart of the times, and the initial heart of the era of "asking nothing about the West and the East" is actually seeking truth from facts. In line with the principle of seeking truth from facts and unremitting struggle, we can see a more powerful country.

The Story of China People: Wang Mingli: From a War Hero to a Poverty Alleviation Hero

  The breeze blows gently, and the tea in Sinan Chenxi Ecological Tea Garden is fragrant.

  Ten years ago, it was once a barren hill, and the per capita annual income of villagers nearby was less than that of 800 yuan. Ten years later, thousands of acres of tea gardens here are a million hectares, and the per capita annual income has increased by nearly seven times.

  With a 6 kg prosthetic leg, Wang Mingli dragged his broken legs on this road for 10 years. He led the veterans and the local people to find a way where there was no road, and turned the barren hills and stone ridges into more than 4,000 acres of ecological tea gardens.

  Wang Mingli, Party branch secretary and trade union chairman of Chenxi Ecological Agriculture Professional Cooperative in Sinan County, Guizhou Province, and chairman of Dongsheng Forest Breeding Family Farm in Sinan County, is in the tea garden. Photo courtesy of myself

  Blood-stained battlefield, the iron-hearted hero will never regret losing his leg

  "It is not easy to survive, we must be strong!"

  In April 1984, the battles of Laoshan and Zheyinshan started. At the age of 20, Wang Mingli wrote six letters of invitation, urging the company to hand over the most difficult combat tasks to the sharp knife class he led.

  On the battlefield, he rushed to the front and died, but unfortunately he was injured by enemy shrapnel in his right leg and blew up his left leg. Wang Mingli, who woke up from a pool of blood, did not flinch. While fighting back, he dragged his disabled body to continue fighting, completed the combat mission with tenacious perseverance and rescued the injured comrades.

  Although the war cost him a leg, it didn’t take away his hope for life. In the eyes of Wang Mingli, he is still lucky. "Many of my comrades-in-arms have died, and I am still alive. I am lucky. I should cherish my hard-won life."

  Return from disarmament, take root at the grassroots level and open up a new battlefield.

  In 1985, Wang Mingli retired to his hometown. The fighting spirit of "I’d rather die before and never take a step back" was like a bright lamp, which lit up his way forward. In 2000, Wang Mingli was selected as a resident cadre. He found that there were some veterans in the countryside, and they had a hard time because they didn’t have any skills. Seeing that his comrades-in-arms and local people are suffering from poverty, his heart is very unpleasant. How can we find a way for them to get rich? Wang Mingli turned his attention to Wanjiashan, the origin of Yan tea in history.

  Sinan, where Wang Mingli is located, is located between Wuling Mountain Range and Daloushan Mountain Range. It is rocky and full of thorns. In the eyes of local people, Wanjiashan is a "dead mountain" without access, water and electricity!

  Can you dig out a tea garden on the "Dead Mountain"? Almost everyone thinks this is impossible, but Wang Mingli believes it. Sinan has a long history of planting tea, and suitable soil and climate conditions have made Yan tea a tribute tea. Today, Sinan can also grow good tea.

  He dragged his heavy prosthetic leg and climbed up Wanjiashan. The land here is barren, and the people on the mountain eat corn and potatoes for every meal. Only during the Chinese New Year are I willing to eat a little rice, wearing all patched clothes, and my liberation shoes are worn out.

  "Be sure to make this ‘ Dead mountain ’ Become a golden mountain! " The living conditions of the local people have strengthened Wang Mingli’s determination to plan mountains and grow tea.

  Have faith in your heart and swear to turn the "dead mountain" into a golden mountain.

  Wang Mingli’s "absurd" idea was opposed by almost everyone.

  "He just likes to show off, so let him have a taste of losing everything." "Not only has his leg been blown off, but now his brain is out of order" … … It is said that Wang Mingli will plant tea trees on Wanjiashan, but people don’t believe that he can succeed. However, Wang Mingli did not flinch.

  In 2007, the roar of excavators broke the silence of Wanjiashan for many years. Without funds, he took out all his savings, borrowed from the east and borrowed from the west, and even mortgaged the property. His wife finally couldn’t help but feel distressed and complain about him, and the two were facing a divorce.

  Dragging his broken legs, people don’t know how many unimaginable hardships the pioneers of today’s entrepreneurship have suffered. All he said was, "Dig even if you lose everything!"

  Wang Mingli has to face three major problems in cultivating tea gardens on Wanjiashan Mountain: difficulty in entering the mountain road, difficulty in using water on the mountain and difficulty in supplying electricity. What should we do? No matter how hard it is, we must go on!

  He took several laid-off comrades-in-arms and set up tents on the barren hills thousands of meters above sea level. There was no road on the mountain, so he led the villagers to cut a 3-kilometer mountain road on Wanjia Mountain at an altitude of more than 1,000 meters. There was no water on the mountain, so he led everyone to dig more than 40 water cellars and carry water with horses. When there was no electricity on the mountain, he lit the lantern with kerosene. When his hand was blistered, he found a band-aid to stick it on. During the day, he dug mountains with his comrades. At night, he took off his prosthetic leg as a pillow. When the prosthesis was worn, he tied it tightly with wire; When the wound became inflamed, he quietly put on the painkiller … … Finally, the tea base was built.

  After the tea garden was built, before Wang Mingli could enjoy the joy of success, a disaster came. The newly planted tea seedlings suffered from heavy snow disaster and freezing weather for two consecutive years, and lost 40% at once. That night, man of iron, who had fought his life on the battlefield without tears, cried. He is tired! Because of Chashan, he has worn out many prosthetic limbs and suffered many misunderstandings. However, he stood up again when he thought of his comrades who had been buried in his hometown.

  "Can’t cry! The comrades who died on the battlefield will not forgive me for giving up. "

  In the spring, he brought the masses to replant tea seedlings. It is another year of tea picking, and it is no longer a wilderness, but an endless tea garden; It is no longer cold, but spring full of hope.

  Stick to the position of poverty alleviation and make new contributions to the hero of poverty alleviation

  Every morning, Wang Mingli will stumble slightly in a thousand acres of tea garden. Looking at this green hill and thinking about the road he came, a smile appeared on his mouth.

  Driven by tea gardens, six poor villages around have taken off their "poverty hats" one after another, and many villagers have bought cars. The vigorous development of ecological tea gardens has convinced Wang Mingli that only by building a good platform for entrepreneurship and employment can more people get rid of the "hat" of poverty. He founded Sinan County Veterans Entrepreneurship and Employment Demonstration Base with the model of "Party branch+veterans+enterprises+bases+farmers".

  In 2009, together with several veterans, he seized the opportunity of Sinan county party committee and government to develop ecological tea industry and established Sinan Dingsheng Ecological Agriculture Development Co., Ltd. in Guizhou Province. In recent years, through leasing land and farmers’ participation in land, the company has concentrated on transferring more than 4,000 mu of land for tea garden construction in a large scale, radiating six national poverty-stricken villages around, making the local per capita annual income jump from more than 800 yuan to nearly 10,000 yuan.

  "I did it with him, not by accident, but by necessity." "I really appreciate him, because he made me useful." When my comrades expressed their gratitude to him, Wang Mingli always said, "You are all rich, so I have no regrets."

  As night fell, Wang Mingli dragged his tired body home. He collapsed on the bed, rolled up his trouser legs, silently removed his heavy prosthetic leg, peeled off layers of gauze, washed the bloody wound with salt water, applied medicine, and wrapped it in layers of new gauze. Early the next morning, he rushed around his thousand acres of tea garden in high spirits. He said that he will always stick to his "position" and protect his tea mountain. (China Youth Network reporter Yang Yue Zhang Wei trainee reporter Li Huihui)