In 1980s, literature was once one of the most fashionable topics in Chinese. At that time, the fastest-selling magazine in newsstands was Dangdai, People’s Literature and Novel Monthly. If you haven’t read "Avant-garde" and "Vague School", you may be embarrassed to say hello to others.

Nowadays, in the fast-paced traffic era, it seems that there are fewer and fewer people who can calm down and read a literary work. So is there still a "shelter" for literature in our daily life? Recently, the second season of the humanistic documentary "Everyday Literature" jointly produced by Southeast Satellite TV, Channel Satellite TV and Youku Video answered this question in an ingenious way. The program enters the writers’ daily life, shows their rich and interesting spiritual world, and makes the public feel the charm of literature enough to illuminate their daily life again.

"De-streaming" writers’ lineup

The second season of Everyday Literature, which returned after a lapse of two years, continued the pattern of the previous season, starting from the visit of friends, and reflecting the writer’s cognition and interpretation of the times and life through the two-day conversation, visit, experience and observation between writers and friends. But at the same time, the program also faces some challenges in the creation of the second season.

The primary problem faced by the creative team is to determine what kind of writers will enter Daily Literature this time. Through the program, we can easily find that compared with last season, the writers in this program seem to be more "de-streamed". Among the six writers, there are writers who have won the Mao Dun Literature Award, such as Liu Liangcheng and Li Xiuwen, and there are also representatives of the "third generation poetry" Yu Jian and representatives of the new generation writers Shuang Xuetao.

The reason why I chose to shoot these writers, director Wang Shengzhi has his own ideas: "After two seasons of programs, the criteria for choosing writers are not whether there are awards or whether they bring their own traffic. The writers I choose are all people who have seen the main works in recent years and caused me to read and think. I value their ability to dream and communicate with their hearts more."

In the film, Liu Liangcheng and Hong Qi roamed the grassland Gobi in Xinjiang, and Lu Yu shepherds, wild camels, donkeys, lizards and other creatures all stopped to say hello. When he said that "a spider’s web is a spider’s home", what the audience got from it was a writer’s philosophy of equality of all beings and integration of things and me. Yu Jian and his good friend Hu Liangcan met in Jianshui ancient city, freely entering and leaving the noisy slag street and the secret quiet house, talking about divinity and eating with a big mouth. Facing the mottled door with no details, he threw a question to the audience, that is, the meaning of details to life.

Whether it’s Liu Liangcheng, Li Xiuwen, Yu Jian, Chen Yan and other writers, all the writers invited by the program are rich in life experience and thoughtful enough. It is precisely because of this that their stories and expressions can make the audience more touched and inspire them.

Let writers roam the world

Let literature combine with life better.

On the basis of exploring the writer’s spiritual world, the new season "Daily Life of Literature" also tries a new way to oppose TV linear narration. The program allows writers and friends to walk into the environment of life, nature and the streets and lanes of the city, which makes the program more "a sense of human roaming".

From the desert Gobi to the ancient city market, writers and their friends swim in the vast world, sing songs in the pastures of Xinjiang and play guitar in the yellow sand of Dunhuang; Or wandering in the bustling fireworks world, drilling hutongs and talking to grandfathers, entering the village in the city and talking to migrant workers at home. With their roaming, the program presents a broader and richer local customs and opens up a richer life.

In Wang Shengzhi’s view, the core of roaming is encounter and improvisation, which is very different from interview. It is not only a physical space movement, but also a spiritual journey. "Roaming makes writers leave their familiar environment, and then they will meet strange people and things. When these encounters occur, they can start a topic, and this expression is from the heart."

As a matter of fact, in each nearly one-hour program, the topic of conversation is changeable, which is often the product of the team setting up the camera and letting it develop when the writer and friends are roaming. Shuangxuetao and Shi Hang wandered between the red bricks and green tiles in the ancient capital Beijing, and came across a narrow family, which reminded him of his childhood sleeping on a hot kang and his parents selling roasted sweet potatoes and being chased around the street by the urban management, and naturally talked about the understanding of "compassion": "What is compassion? It is’ I am also him’. " Li Xiuwen happened to talk with his elder sister who picked bitter vegetables in Xinglin, a wasteland in the northwest. He liked to listen to everyone talk about the triviality of daily life and said with emotion, "Life is exposed to writing, and writing is exposed to life."

Faced with a relatively unfamiliar environment, writers will improvise, express their feelings about life, and respond and rebuild this imperfect real world by watching the initial heart of literature. Just as Shi Hang’s review and Shuang Xuetao’s crazy sledding on the ice rink in Shichahai expressed in the program: "Everyday Literature is not to shape a certain height, but to deconstruct all heights and let you know what is interesting, true, good and beautiful."

"I hope that in the second season’s program, literature can be better combined with daily life and bring different things to the audience." Wang Shengzhi said. Just like in the program, Yu Jian read aloud in the vegetable market, and the old man next to him walked in front of him; Shuangxuetao is reading in a narrow alley, and the people behind him are playing billiards … In the second season of Daily Literature, the author’s reading session is placed in the daily fireworks, which actually brings literature back to its place.

Literature is never empty, it comes from the summary of writers’ life and the philosophy of life. In the second season of Daily Literature, writers and friends swam together in places closely related to literary creation, visited the market life, and skillfully linked literature with life. "In the past, many people felt that literature was far away from them. No, part of daily life was literature, and those shining and poetic existence belonged to literature. So there is daily life in literature, and there is also literature in daily life. " Wang Shengzhi said.

"Invest 20% of creative power to make leading content every year"

In recent years, from Breakfast in China, Dishes, China is so beautiful, and then to Everyday Literature, fujian media group Satellite TV Center takes food, music, literature, etc. as the entry point of creation, and refines the feelings of life from the details of daily life, creating a series of successful documentary works, showing a distinctive style and winning a good reputation.

According to Hong Lei, director of fujian media group Satellite TV Center, director of Southeast Satellite TV, and master planner of Daily Literature, at present, some works blindly cater to the market and capital, and tend to be pan-entertainment and too utilitarian, so they cannot enter the hearts of the public. Therefore, he hopes to leave a "free place" for creators. "Satellite TV Center invests at least 20% of its creative power every year to make content with leading value, and encourages to try new program forms and content themes and do it on the circle. In fact, it is very valuable that each program can at least have emotional dialogue and communication with some people. "

In an era when serious literature is declining and the public attaches too much importance to the entertainment function of literature, Everyday Literature, a documentary with a seemingly niche theme, leads the audience into the world of literature step by step in an interesting way and opens up more space for thinking and taste. In the past reading documentaries, whenever the themes of "reading" and "literature" were mentioned, they were always endowed with profound meanings and heavy concepts, which made many viewers "flinch". However, in the second season of Daily Literature, there is no literary coffee to explain the creative stories of classic works. It is not an interview with famous writers, but to let writers enter a broader world and face the difficulties of modern life through individual discovery and sentiment, thus arousing the emotional resonance of the audience.

As summarized by Hong Lei: "Everyday Literature is not just about literature, but focuses on the writer’s ability to digest life, helping the audience understand and refine life from the writer’s point of view, which is a rational thinking about real life and helping the audience solve their own life problems better."

Liu Liangcheng’s birthplace is a village on the edge of the Gurbantunggut Desert in Xinjiang. The writing of One Man’s Village stems from his memories of a village that has gone far away. Li Xiuwen wrote "To the Elder in Jiangdong", using sixteen simple but extraordinary stories to write the most wordless heavy; Chen Yan took Chen Xiaoduo to visit Xibali Village in Xi ‘an. The spiritual highlights of the bottom workers are the source of his work "The Leading Role" …

"In fact, you will find that many words coincide with the images in the world. If words are the other side of meaning, then this shore is the image of our current life. " Wang Shengzhi said, "It is equally valid to put the words in the book on the hot shore, because there is a bridge between them, so everyone can naturally understand and feel, and this is the most enjoyable place to shoot this film."

"Illuminating daily life with literature and ruminating on life with thoughts" is the initial intention of creating the program "Daily Life of Literature". In the second season, the program is still full of awe of literature. Through the collision between literature and daily life, it reflects the writers’ cognition and interpretation of the times and life, and delivers thoughtful content to the audience, so that the public can glimpse the light of thought in daily life.

　　In the car camp, hybrid cars have both the high endurance of fuel engines and the high efficiency of electric motors. With the further development of hybrid technology by car companies, more and more hybrid vehicles appear on the market. From the technical route, the hybrid is mainly divided into four categories: light hybrid, oil-electric hybrid, plug-in hybrid and extended-range hybrid. Do you know how to choose so many types of hybrid cars?

　　Mild hybrid

　　Advantages: it is more fuel-efficient than a fuel truck and does not need to be recharged.

　　Disadvantages: limited fuel-saving effect

　　It is reported that the "light hybrid" commonly known in the market is a light hybrid, which aims to improve fuel efficiency, reduce emissions and improve vehicle performance.

　　Different from fuel-powered vehicles, light-mixed vehicles are generally started by pure electric power without much vibration and noise; When accelerating,It can provide additional propulsion energy, thus reducing the engine burden and achieving the purpose of fuel saving; When braking, the light hybrid power system will also recover excess energy for itself.Charging to further realize energy saving and emission reduction.

　　Different from other hybrid vehicles, mild hybrid vehicles have no pure electric mode, because there is not enough power to propel the vehicle. At present, 48V light hybrid system is common, which can generally save 10% ~ 15% fuel when driving in cities.

　　For consumers, the cost of light-mixed vehicles should be considered when purchasing. The price of 48V light-mixed vehicles is higher than that of traditional fuel vehicles. Because of its more complicated internal structure, the maintenance cost is relatively higher. Consumers need to weigh the balance between purchase cost and maintenance cost. For example, many Mercedes-Benz models are all equipped with 48V light mixing system, and the new GLC is equipped with a 2.0T engine and a 48V light mixing system. The official guide price is 453,500 ~ 483,500 yuan.

　　In addition, under the dual requirements of environmental protection and fuel consumption, light mixing is still a technical scheme that can effectively reduce fuel consumption. The 48V light mixing system can reach the balance point between cost and fuel saving effect, so that it can meet the requirements of environmental protection emission at a lower cost.

　　Plug-in hybrid power

　　Advantages: fuel saving

　　Disadvantages: short battery life

　　Simply speaking, plug-in hybrid electric vehicles combine the advantages of traditional fuel vehicles and pure electric vehicles, and adopt two power systems, electric drive and internal combustion engine drive, which can provide power alternately. It has not only the fuel engine, transmission and transmission system of the traditional car, but also the electric motor and control circuit of the pure electric car. It can charge the vehicle through an external power supply, and has a relatively large capacity and a charging interface. When the battery is fully charged, the plug-in hybrid vehicle can only rely on the motor to drive and realize zero-emission driving. When the battery is exhausted or needs more power, it can switch to the hybrid mode and use the fuel engine to continue driving, thus greatly increasing the driving range of the vehicle.

　　Compared with traditional fuel vehicles, the comprehensive fuel consumption of plug-in hybrid vehicles is lower. In the hybrid mode, the fuel engine and motor work together, which improves the energy utilization efficiency and reduces the fuel consumption. such asSeal 06DM-i is equipped with DM-i plug-in hybrid system, of which there are two versions, 120 kW and 160 kW respectively. In terms of battery life, the pure battery life of Seal 06DM-i is 60 kilometers and 90 kilometers respectively, and the fuel consumption per 100 kilometers is only 3.98 liters.

　　It is worth noting that although plug-in hybrid vehicles are fuel-efficient and suitable for daily commuting, due to the short battery life of this model, it also means that owners need to charge every day, and it is best to have their own..

　　Oil-electric hybrid power

　　Advantages: fuel saving and no mileage anxiety.

　　Disadvantages: the car price is higher.

　　However, the gasoline-electric hybrid is easily confused with the light hybrid by consumers, because both of them can’t be charged, but can only be refueled. In fact, they are different in working mode, ignition mode, characteristics, fuel consumption and release time.

　　First of all, the motor power and battery capacity of light-mixed vehicles are smaller, while oil-electric hybrid vehicles have stronger performance and pure electric mode cruising range; Secondly, light-mixed vehicles still rely on fuel to drive after being started with electricity, while oil-electric hybrid vehicles can run without using internal combustion engines.

　　In addition, the light mixing system uses 48V battery and motor to match the fuel engine, which can be used only when the vehicle starts or under specific circumstances, which can effectively save fuel. On the other hand, the hybrid electric vehicle adds a drive motor to the fuel engine, so that the motor can assist the engine to generate more power and reduce fuel consumption. Therefore, the light hybrid system adds a small motor to the original engine of the vehicle, while the oil-electric hybrid system adds a driving motor, both of which can achieve the purpose of energy saving and emission reduction.

　　The reporter learned that the application time of oil-electric hybrid power system is earlier than that of light hybrid power system, and the technology development is relatively more mature. The mainstream in the market is Japanese hybrid models, such as GAC Toyota’s ninth-generation Camry, which is the benchmark model in the segmentation field. WLTC’s comprehensive fuel consumption per 100 kilometers is 4.2 liters, and it can travel more than 1,000 kilometers with a full tank of oil.

　　Extended range hybrid power

　　Advantages: reduce endurance anxiety

　　Disadvantages: the price is higher.

　　The extended-range hybrid vehicle is essentially a unique series plug-in hybrid vehicle. Based on the structure of pure electric vehicle, the extended-range hybrid vehicle adds a range extender (engine) to generate electricity through the generator, which provides power for batteries, motors and other equipment on the vehicle, but it cannot directly participate in driving the vehicle. When the battery is fully charged, the range extender rests, and the vehicle is completely driven by the battery pack to realize zero-emission driving; When the battery is low, the range extender is started to drive the vehicle by driving the motor. Some of this electricity can directly drive the motor to propel the vehicle, and the other part can charge the battery pack to ensure that the battery pack always has enough electricity. This means that the range extender is like a large mobile power supply or charging treasure, which provides a steady stream of electric energy for the battery pack. This also enables extended-range hybrid vehicles to still have a long cruising range without or without sufficient conditions.

　　However, due to the fuel and electric systems, extended-range hybrid vehicles are heavier than pure fuel vehicles and pure electric vehicles, which is one of the reasons why most extended-range hybrid vehicles on the market are medium and large SUVs. At the same time, because the extended-range hybrid electric vehicle has more components such as battery and motor than the pure fuel vehicle, and more components such as engine and fuel tank than the pure electric vehicle, its manufacturing cost and later maintenance cost are higher. For example, the national unified retail price of the ideal L6 equipped with a 1.5T four-cylinder range extender is 249,800 ~ 279,800 yuan; The M9 extended range Max version is 469,800 yuan, and the extended range Ultra version is 529,800 yuan.

　

　

First, the TV home page

1. Navigation function

　

　

　　　　The navigation of TV stations uses the mouse to slide through the drop-down menu, which can easily guide netizens to their favorite secondary pages and special areas, including: home page, hot drama online, popular theater and movie Club, etc., and constantly optimize and update them.

　

2. Search function

　

　

　　　　Located above the navigation, users can enter keywords to search for videos in the station, or click on the hot words below to search quickly. The contents of hot words are updated at any time according to the contents of hot dramas on the screen or online.

　

3. The module is being broadcast.

　

　

　　　　Located on the right side of the search bar, according to the content of "popular theater" promoted by TV stations, it will give you a preview of what is being broadcast.

　

4, TV drama popular theater 7+1

　

　

　　　　TV Series 7+1 is a product made by china network television TV Station. By default, the video frame in the home page broadcasts the diversity video of the selected TV series "Hot TV Series", and at the same time, the eight small pictures below correspond to eight professional theaters, providing you with live TV series with characteristics from different angles. Including: hot drama series, tough guy theater, marriage theater, youth theater, criminal investigation theater, comedy theater, nostalgia theater.

　

5. Watch.

　

　

　　　　The watch module recommends the popular plays on the screen and on the Internet, and provides you with the first-hand popular TV series on demand.

　

6. The latest update of TV series

　

　

　　　　The "Latest Update of TV Plays" section presents you with the most detailed information about hot dramas. Taking The Founder as an example, the page presents information about the director, actors and plot of the drama, and provides on-demand services for diversity videos. At the same time, it presents you with the freshest video information to help you learn more behind-the-scenes anecdotes. On the right side of the section, "You may still like to watch" recommends you a play with the same theme according to the plot classification of "The Founder", and diversified choices allow you to enjoy the audio-visual feast!

　

7. We are all watching.

　

　

　　　　The "We Are Watching" section shows you highly concerned and widely praised plays with rich and diverse themes. Here, you can learn about the preferences and pursuits of netizens and find your favorite TV programs quickly!

　

8. User comments on the leaderboard

　

　

　　　　The "netizen comment leaderboard" section is a repertoire leaderboard integrated according to netizens’ star rating of various TV programs. This section is divided into three parts: netizen’s hot recommendation, unsatisfactory, and bad review of bad dramas. The star rating of each drama is determined according to netizens’ evaluation, and funny comments are also a highlight of this section!

　

9. Film and Television Club

　

　

　　　　The "Movie Club" section is a communication place for TV drama fans. Here, you can see the most interesting drama reviews, participate in the most popular voting, vent your regrets about the purpose of TV drama, and share the first-hand gossip in the film and television circle!

　

10. Hot drama list

　

　

　　　　The "Hot Drama Rankings" section presents you with TV drama rankings from the click-through rate, upload time, ratings and other factors, which will help you understand the popularity of TV dramas more intuitively!

　

Second, the TV station query page

　

　

　　　　The TV stations provide users with: letter retrieval, region retrieval, genre retrieval and users’ favorite personality retrieval, which is convenient for users to find the information they want.

　

　　　　Third, the final page of the TV station

　

　　　　The TV station provides two kinds of video frames for netizens to watch videos.

　

　　　　1. Diversity video page:

　

　

　　　　The diversity video window play page is used to play the diversity video of TV series. The floating functions of the player include the main player, title, introduction and other contents. Click the two-way arrow in the upper right corner of the player to switch large-size videos. The floating layer includes functions such as leaderboard, collection, suggestion, sharing, top stepping, rating and so on.

　

　　　　The icon in the lower right corner of the player can play in a full-screen or widescreen video window.

　

　　　　2, popular theater play page:

　

　

　　　　This page mainly presents a personalized theater, providing netizens with a 24-hour TV series. By default, the page will be played in a large video window and provide interactive functions. And the 24-hour scheduling details are presented at the bottom right of the page.

　

　

　　　　

The mainstream car has a moderate size, which can meet all needs well, and the price of the mainstream car is also reasonable, so it is right to buy it! There are many options for gasoline cars now, as we said today. Next, let’s see if its highlights can attract you with Xiaobian.

First of all, from the appearance, Roewe i5 front face lines are fashionable and simple, with multi-banner air intake grille, which looks sporty. Coupled with angular headlights, it outlines the effect of youth and fashion. The car is equipped with LED daytime running lights, delayed shutdown and so on. Come to the car side, the car body size is 4676MM*1838MM*1498MM, the car uses simplified lines, the car body looks very sporty, with large thick-walled tires, smooth lines running through the whole car side. In the rear part, the rear part echoes the front of the car, and the taillights present a cool design style, coupled with the unique exhaust pipe, creating a good gas field.

Sitting in the car, the Roewe i5 interior enhances the visual youthfulness and makes people feel very simple and fashionable. The steering wheel of the car is well designed and made of plastic, and everything looks very cool. Let’s take a look at the central control, with a 10.25-inch central control screen, which makes the interior design quite layered and looks very soft. Finally, let’s look at the dashboard and seats. The dashboard design is remarkable, highlighting the trendy temperament. The car adopts leather seats and is equipped with functions such as the whole seat falling down, which improves the riding experience of drivers and passengers.

Roewe i5 is matched with continuously variable transmission (CVT) gearbox, with maximum power of 95KW and maximum torque of 158N.m.

Roewe i5 trunk space performance is quite satisfactory. If you need to install some large objects, the rear seats also support proportional reclining, which is enough for home use. At the same time, the car is equipped with anti-lock braking system (ABS), LED daytime running lights, brake assist (EBA/BAS, etc.), braking force distribution (EBD), traction control (ASR/TCS, etc.), main driver airbag and co-pilot airbag.

Such a car with the right price is enough to meet the daily practical needs, and it doesn’t take much thought to maintain it at ordinary times, and the cost performance is good. Xiaobian thinks that if you really want to buy this car, you still have to go offline to actually experience it.

　　[Everyone talks about green development]

　　Author: Gu Yaqing (researcher at the Research Base of Anhui Provincial Party School [Anhui Administration College], Socialism with Chinese characteristics Theoretical System Research Center, Anhui Province)

　　The Yangtze River is the river with the richest biodiversity in China, with more than 4,300 species of aquatic organisms. Its unique ecosystem plays an irreplaceable role in maintaining biodiversity and ecological balance and ensuring national ecological security. At the same time, the Yangtze River is also a treasure house of aquatic germplasm resources in China, which has always been regarded as the original seed base and natural gene bank of economic fish.

　　However, for a long time, over-utilization of resources, engineering construction, environmental pollution, population growth and other factors have seriously threatened the survival of species resources in the Yangtze River, and the biodiversity of the Yangtze River has continued to decline. On March 1, 2021, the Law of People’s Republic of China (PRC) on the Protection of the Yangtze River came into effect, regulating the restoration of the ecological environment, and stipulating that the state should implement systematic management of the ecosystem of the Yangtze River basin, which is mainly based on natural restoration and combines natural restoration with artificial restoration; In the same year, the Ministry of Agriculture and Rural Affairs issued the Implementation Plan for Biodiversity Protection in the Yangtze River (2021— 2025) … … A series of laws, regulations, policies and measures have been promulgated, and local governments have actively implemented them. The biodiversity protection of the Yangtze River has entered a new historical period.

　　The process of mainstreaming biodiversity protection in the Yangtze River has been accelerated.

　　In recent years, the mainstream trend of biodiversity protection in China has been continuously strengthened. In December 2022, the 15th Conference of the Parties to the Convention on Biological Diversity adopted the Kunming-Montreal Global Biodiversity Framework, which drew a new blueprint for global biodiversity governance. In this context, biodiversity protection in the Yangtze River is also in the trend of mainstream promotion. In the great protection of the Yangtze River, from the integrated protection and restoration of mountains, rivers, fields, lakes, grass and sand to the promotion of green production and lifestyle, we need to make overall consideration and systematic promotion, aiming at gradually improving and restoring the ecosystem, enhancing the service function of the ecosystem and promoting the restoration of biodiversity. Therefore, the provinces and cities along the Yangtze River have taken active actions to strengthen the remediation of sewage outlets entering the Yangtze River, strengthen the protection and restoration of the ecological environment in the basin, improve the mechanism of capital investment and compensation, and work together to promote the protection of biodiversity in the Yangtze River. Especially in the protection of aquatic biodiversity in the Yangtze River, they have successively implemented actions such as "ten-year fishing ban", strengthening the protection of aquatic wildlife, organizing the monitoring of aquatic biological resources in key waters, and strengthening the protection of important habitats of aquatic organisms. The overall ecological environment in the Yangtze River Basin has been effectively improved, and the passive situation of biodiversity decline has been curbed.

　　Positive Effects of Diversity Protection from "Smiling Angels"

　　Since 1980, the population of Yangtze finless porpoise has rapidly declined. Relevant surveys show that the number of Yangtze finless porpoises was more than 2,700 in 1991, and only 1,012 were left in 2017. In 2021, the Yangtze finless porpoise was upgraded from a second-class protected wild animal to a first-class protected wild animal. In 2022, the scientific investigation of the Yangtze finless porpoise population organized by the Ministry of Agriculture and Rural Affairs showed that the number of Yangtze finless porpoises was 1,249. Compared with the scientific investigation in 2017, the number of finless porpoises increased by 23.42% in five years, and the population stopped falling and rebounded, showing a recovery growth.

　　In order to protect the Yangtze finless porpoise, a rare and endangered species, government departments and protection workers at all levels actively carry out three major protection measures: in-situ protection, ex situ protection and artificial breeding. China has established five ex-situ conservation groups of finless porpoises in Swan Island National Nature Reserve in Hubei, the new Yangtze River Silla National Nature Reserve, Hewangmiao Hunan Integrated Ridge Provincial Nature Reserve, Tongling Freshwater Dolphin National Nature Reserve in Anhui, and Anqing Xijiang Yangtze finless porpoise ex-situ conservation base. On July 5, 2023, the world’s first Yangtze finless porpoise, Taotao, celebrated its 18th birthday. After artificial breeding, "Taotao" has successively bred two Changjiang Dai finless porpoises "Hanbao" and "Xiaojiujiu" in Wuhan Baiju Dolphin Museum. Relevant data show that 13 nature reserves related to the Yangtze finless porpoise protection have been established in the Yangtze River basin, covering 40% of the Yangtze finless porpoise distribution waters and protecting nearly 80% of the population. In addition, with the establishment of "Yangtze finless porpoise protection network" and the strengthening of scientific and educational publicity activities, the public’s awareness of protecting the ecological environment of the Yangtze River has also been greatly improved. In recent years, people often see the "smiling angel" finless porpoise jumping by waves and splashing water in the waters of the main tributaries of the Yangtze River, which is also a strong proof of the phased achievements in the protection of the finless porpoise of the Yangtze River.

　　Plan and advance with a higher position, wider vision and greater strength.

　　Biodiversity reflects the essence and characteristics of ecosystem and is one of the fundamental indexes to evaluate the quality of ecological environment. As an important gene bank of species and living bank of natural aquatic resources in China, the biodiversity protection of the Yangtze River needs to be planned and promoted with a higher position, wider vision and greater efforts.

　　Optimize the spatial pattern of biodiversity protection and properly handle the relationship between protection and development.Coordinate the delineation and control of the three control lines of ecological protection red line, permanent basic farmland and urban development boundary, work out and implement the special plan for ecological protection and restoration of land space on the basis of the overall planning of land space, optimize and adjust the scope and functional zoning of nature reserves, and improve the construction of nature reserves system with national parks as the main body. At present, the vague understanding of "ecological protection restricts economic development" still exists, the overall planning of a few nature reserves conflicts with the overall planning of cities, the establishment of nature reserves has unreasonable functional zoning and overlapping phenomena, and some nature reserves have frequent human activities. Therefore, it is necessary to correctly treat the stage difficulties and long-term goals, correctly handle the relationship between protection and development, strengthen the comprehensive management of grass and sand in landscapes, forests, fields and lakes, rationally utilize ecological resources, promote the value transformation of biodiversity resources, actively explore the path of marketization to realize the value of high-quality ecological products, and form a good mechanism for sustainable utilization of biodiversity.

　　Pay attention to and accelerate the background investigation of biodiversity.At present, the overall trend of the decline of biodiversity in the Yangtze River has not been effectively curbed, and when biodiversity protection is carried out in various places, due to the unclear background, there is a lack of clear understanding of the target object and scope of biodiversity protection in the Yangtze River. Up to now, Yangtze River Fisheries Research Institute of Chinese Academy of Fishery Sciences has set up Chongqing Experimental Station of National Agricultural Science and Wuhan Experimental Station of National Fishery Resources and Environment, and Jiangsu, Hubei, Shanghai, Anhui and other provinces and cities have also carried out background surveys on biodiversity, striving to find out the background of biodiversity in the Yangtze River, grasp the dynamics and identify problems, and provide scientific basis for formulating policies related to biodiversity protection and enhancing the diversity, stability and sustainability of ecosystems.

　　Strengthen the effective connection of biodiversity protection in the whole basin and the functional coordination between departments.As the largest river in China, the Yangtze River has its main stream flowing through 11 provinces (autonomous regions and municipalities directly under the Central Government) and its tributaries extending to 8 provinces and autonomous regions. The biodiversity conservation area of the Yangtze River spans multiple administrative regions, and involves many departments, such as ecological environment, natural resources, forestry, agriculture, geology and minerals, water conservancy, ocean, public security, market, etc. In practice, it often happens that nature reserves span more than two administrative regions without a unified management organization, or although they have their own territorial management organizations, cross-regional management cannot be implemented due to administrative authority, resulting in timely and effective coordination and settlement of resource management and related affairs. Ecosystem diversity not only includes the diversity of ecosystem components, but also emphasizes the complexity of ecological processes and their dynamic changes. In the high-level protection of biodiversity in the Yangtze River, the whole basin needs to adhere to comprehensive management, systematic management and source management, break the shackles of administrative divisions, strengthen the coordination of tasks among functional departments, and clarify the relationship between powers and responsibilities, so as to keep the mother river alive forever.

　　Guangming Daily (October 14, 2023, 07 edition)

　　The 20th National Congress of the Communist Party of China（CPC） opened in the Great Hall of the People on the morning of 16th. The Supreme Leader made a report to the General Assembly on behalf of the 19th Central Committee.

　　Supreme Leader: From now on, the central task of the Communist Party of China (CPC) is to unite and lead the people of all ethnic groups to build a socialist modernization power in an all-round way, realize the goal of the second century, and comprehensively promote the great rejuvenation of the Chinese nation with Chinese modernization.

　　Chinese-style modernization is the socialist modernization led by the Communist Party of China (CPC), which not only has the common characteristics of modernization in all countries, but also has the characteristics of China based on its own national conditions. Chinese-style modernization is a modernization with a huge population, the common prosperity of all people, the coordination of material civilization and spiritual civilization, the harmonious coexistence of man and nature, and the modernization of peaceful development.

　　The essential requirements of Chinese modernization are: adhering to the Communist Party of China (CPC)’s leadership and Socialism with Chinese characteristics, achieving high-quality development, developing people’s democracy in the whole process, enriching people’s spiritual world, achieving common prosperity for all people, promoting harmonious coexistence between man and nature, promoting the construction of a community of human destiny and creating a new form of human civilization.

China Consumer News reports(ReporterWu BofengIn the midsummer, it is a common idea for many consumers to take their family on a weekend trip. And a mid-sized urban smart SUV may be able to meet your car needs.

In recent years, with the steady increase in the market share of new energy vehicles, the development advantages of BYD, which has been fully transformed into electrification, have become more and more obvious. Last year, BYD’s cumulative sales exceeded 3.02 million units for the first time in history, accounting for nearly 10% of the national annual car sales. On May 10, BYD launched a new medium-sized pure electric SUV, the Sea Lion 07EV, which benefited from the first model created by e-platform 3.0 Evo technology and the first model of the new Sea Lion IP of Ocean Network. It has attracted much attention since its launch. In the summer in Beijing, the in-depth contact with the Sea Lion 07EV is a good opportunity for reporters to have a deeper understanding of its product power.

Sea Lion 07EV appearance.Wu Bofeng/photo

Walking into the test drive venue and getting to know the vehicle at first glance, you can feel the distinct family style of the Sea Lion series. As a realistic interpretation of the Ocean X concept car, the front shape of the Sea Lion 07EV extracts the "X" shape from the dynamic perspective as the basic structure. Through the contrast of tone and material, the horizontal lines at the bottom are highlighted, which brings better visual extension to the whole front of the car, increases the overall visual width, and also makes the front profile of the Sea Lion 07EV appear more solid.

At a time when the phenomenon of product homogeneity is becoming more and more serious, how a new car can highlight its own characteristics and bring differentiation is an important prerequisite for being recognized by consumers. To this end, the two wheel hubs of the Sea Lion 07EV are inspired by the posture of the sea lion leaping into the water. Through pictographic treatment, the lines are simple and natural. At the same time, both wheels form a sharp tone contrast through color-painted brake calipers, strengthening the unique taste of the Sea Lion 07EV.

Sitting in the car, the interior style of the vehicle pursues individuality and practicality with the keywords of "suspension, lightweight and speed". Its internal lines continue the flow of the external design, and use a variety of materials to interpret various marine elements with delicate workmanship, bringing more active atmosphere to the elegant passenger cabin space.

This test drive route includes a variety of road conditions such as urban roads, urban expressways and expressways, which can accurately reflect the performance of the Sea Lion 07EV in various life scenarios. From the moment the reporter stepped on the accelerator, he felt the driving texture of the Sea Lion 07EV, which was neither slow nor aggressive, and the accelerator was just right. In addition, thanks to its 0-100km/h acceleration time of only 4.2 seconds, it can bring drivers a hearty power experience.

In the face of urban road sections, the Sea Lion 07EV can always feed back the power to you in time, helping you calmly complete actions such as overtaking and lane changing, without affecting the agility of the vehicle due to the body weight of the SUV. At the same time, the vehicle is very smooth in continuous power output, without making the driver and occupants feel uncomfortable and frustrated. Especially when driving on congested urban roads, this feature will make the driver more comfortable.

For a smart electric SUV, what are the substantive improvements that a new car equipped with a number of intelligent functions will bring? Within the range of high-speed and expressways covered by functions, the Sea Lion 07EV can follow the navigation and complete the task of automatic assisted driving from the starting point to the end point. During the test drive, the vehicle can follow the navigation route to complete operations such as automatic on-ramp, autonomous lane change or overtaking. In addition, the vehicle can intelligently adjust the vehicle speed according to the static and dynamic conditions of the road. When the reporter traveled to the West Fourth Ring Road area of Beijing, he encountered road construction. Seeing this, the vehicle’s high-speed pilot function initiated lane change in advance and actively avoided.

In order to further enhance the daily practicality and operation convenience of the smart driving function, the Sea Lion 07EV adopts a more concise and clear operation mode, and the different states of human-machine co-driving are intuitively presented on the instrument in the form of icons, which enhances the user’s driving perception and improves driving safety. The Sea Lion 07EV adopts the paddle start method pioneered by BYD in the world, and you can activate the driving auxiliary feature by raising your hand on the steering wheel, which is convenient and fast.

The reporter found through this test drive that the good product performance of the Sea Lion 07EV is no less than that of traditional fuel vehicle products of the same level, and a number of advanced technologies have been added to make the vehicle more competitive. It is believed that as more and more consumers understand the pure electric medium-sized SUV, this model is expected to be favored by more consumers.

China Fund News, Chenxi

On Friday evening, Hengda had another big news!

The first is that China Evergrande announced on the Hong Kong Stock Exchange that it has fulfilled various resumption guidelines, including the publication of all unpublished financial results required by the listing rules and the resolution of any audit qualified opinions. The company has applied to the Stock Exchange to resume trading in the company’s shares from 9:00 am on August 28, 2023.

Before China Evergrande, Hengda Automobile and Hengda Property have resumed trading successively. Hengda Automobile resumed trading by nearly 70% on the day, and Hengda Property resumed trading by nearly 50%. Before the suspension, China Evergrande’s share price had fallen to HK $1.65 per share, with a total market value of 21.80 billion Hong Kong dollars. The performance of China Evergrande’s share price next Monday will attract great attention from the market.

In addition, tonight Hengda Automobile also announced the performance of the first half of 2023: the first half of the group’s revenue was 155 million yuan, net loss 6.873 billion yuan, a year-on-year loss of 48.6%. As of June 30, the company’s net debt fell to 32.84 billion yuan.

So here it is.

China Evergrande officially announced the resumption of trading

Trading will resume next Monday

After Hengda Property and Hengda Automobile, China Hengda will finally resume trading.

On the evening of August 25, China Evergrande announced on the Hong Kong Stock Exchange that the company has fulfilled various resumption guidelines and has applied to the Stock Exchange to resume trading of the company’s shares from 9:00 am on August 28, 2023.

In order to resume trading, China Evergrande issued a one-time reissue of its financial results for 2021, the first half of 2022 and the full year of 2022 on July 17.

Among them, in 2021, China Evergrande’s annual revenue was 2500.1 billion yuan, with a net loss of 686.22 billion yuan. In 2022, the loss was reduced. The revenue recorded in that year was 2300.7 billion yuan, and the net loss was 125.81 billion yuan. That is, China Evergrande’s total net loss for two years reached 812 billion yuan. In terms of liabilities, as of the end of 2022, China Evergrande’s total liabilities were 2.43741 trillion yuan, and 1.71639 trillion yuan after excluding 721.02 billion yuan of contractual liabilities.

In January this year, China Evergrande replaced its auditor: PricewaterhouseCoopers (PricewaterhouseCoopers) resigned and appointed Shanghai Parkson PricewaterhouseCoopers Co., Ltd. as the new auditor. In the resumption guidelines, the new auditor gave solutions/solutions to all 9 matters raised by the predecessor. The board of directors of China Evergrande believes that the matters raised by Luo PricewaterhouseCoopers in his resignation letter have been fully resolved and believes that the company has fully fulfilled the resumption guidelines.

In addition, regarding the situation that Hengda’s 13.40 billion yuan pledge guarantee was enforced by the relevant banks, China Evergrande gave further investigation results: among the directors during the relevant period, Xu Jiayin, Xia Haijun and Pan Darong were able to contact and hold relevant documents. Some documents related to the pledge guarantee arrangement were signed by Xu Jiayin, but Xu Jiayin said that the signing was only a process and denied any knowledge of the pledge guarantee arrangement.

In July last year, China Hengda had announced that due to Hengda property 13.40 billion yuan deposit pledge was the relevant bank enforcement matters, the company’s executive director and chief executive officer Xia Haijun, executive director and chief financial officer Pan Darong, subsidiary Hengda Group Co., Ltd. executive president Ke Peng, has been asked to resign the relevant positions.

According to the independent investigation results, both Xia Haijun and Ke Peng have left, and Pan Darong has been transferred to a company under Evergrande as an ordinary employee. Therefore, the board of directors believes that there are no regulatory concerns about the integrity of the company’s management and has fulfilled the requirements of the resumption of trading guidelines.

732 construction projects resumed

Total assets 1.74 trillion yuan

In order to demonstrate that the company has sufficient business operations, China Evergrande has also released a number of business data.

China Evergrande said that the company takes stable operation and risk as the first priority, and actively promotes the work of the protection building with the greatest strength. It has obtained the understanding and support of various parties, including local governments, upstream and downstream enterprises, owners, etc., and has realized the full resumption of 732 protection building projects. A total of 301,000 sets of buildings will be handed over in 2022. The cultural tourism project on Haihua Island in Hainan, China has been operating steadily and has received more than 7.60 million tourists.

As of June 30, 2023, China Evergrande Group has a land bank of 190 million square meters. In addition, the Group is also involved in 78 old renovation projects, including 55 in the Greater Bay Area (34 in Shenzhen) and 23 in other cities.

China Evergrande said that the company’s current sources of Working Funds are mainly rescue fund loans provided by local governments, project disposal income, existing regulatory funds and daily operating sales income. In the first half of 2023, the group realized the contract sales amount of RMB 33.413 billion yuan, the contract sales area was 5.115 million square meters, and the cumulative sales refund in the first half of the year was RMB 27.10 billion yuan.

As of June 30, 2023, the total assets of China Evergrande Group were approximately 1.743997 trillion yuan. The board of directors believes that the group has sufficient business operations and has assets of sufficient value to support operations.

It has been 17 months since China Evergrande suspended trading on the morning of March 21, 2022. According to the "18-month delisting" system arrangement of the Hong Kong Stock Exchange, China Evergrande applied to resume trading in time at the deadline, ushering in a turnaround. After China Evergrande resumes trading, China Evergrande, Evergrande Property and Evergrande Automobile, the three listed companies of Evergrande, will fully resume trading.

The resumption of trading is not easy, and the share price is even more worrying. Before the suspension, China Evergrande’s share price had fallen to 1.65 Hong Kong dollars per share, and the total market value was 21.80 billion Hong Kong dollars. The performance of China Evergrande’s share price next Monday will attract great attention from the market.

In contrast, Hengda Motor resumed trading on July 28, the day plummeted nearly 70%. Hengda Property resumed trading on August 3, the day fell nearly 50%, the continuous decline has been reduced to penny stock, the latest total market value 7.50 billion Hong Kong dollars.

Hengda Automobile reduced losses by 48.6% in the first half of the year.

Net debt fell to 32.80 billion

On August 25, Hengda Automobile announced in the Hong Kong Stock Exchange that the group’s revenue in the first half of the year was 155 million yuan, and the net loss was 6.873 billion yuan, a year-on-year reduction of 48.6%.

In the 6.87 billion loss, Hengda Automobile said that the discontinued business (i.e. divested real estate projects) held for sale lost 1.061 billion yuan, non-operating losses such as asset disposal and asset impairment 3.716 billion yuan, and operating losses 2.096 billion yuan.

The announcement shows that the Group’s discontinued business (i.e. divestment of real estate projects) held for sale was completed on May 12, resulting in a decrease of 43.139 billion yuan in net liabilities in the financial statements. As of June 30, the company’s net liabilities fell to 32.84 billion yuan.

The announcement shows that for the six months ended June 30, 2023 (the reporting period), Evergrande continued to focus on the high-quality production and delivery of the Hengchi 5, improving and streamlining the production management system. Of all the pre-orders for the Hengchi 5, more than 760 units were delivered during the reporting period. In terms of research and development results, Evergrande has applied for 3,512 patents in similar research fields worldwide, of which 2,715 have been granted patents.

Evergrande Motor said that it will fully promote the mass production and delivery of Hengchi 5 in the future. The Group will continue to lay a solid foundation for research and development. While accelerating the research and development of core technologies to lead the research and development of smart electric vehicle technology, it will continue to focus on the research and development of new models. Evergrande Motor will strive to improve the manufacturing level of the Tianjin manufacturing base, improve the quality system, and ensure high-quality production and delivery. In terms of sales, it will further expand sales channels, create overseas markets, and continue to improve sales and after-sales services.

Prior to this, on the evening of August 14th, Hengda Automobile announced that it had received the first strategic investment of US $500 million from the US-listed company Newton Group (NWTN), which is held by the UAE sovereign fund, and another 600 million RMB transition funds will arrive one after another within 5 working days after the announcement. All the war investment funds will be used for Hengda Automobile’s Tianjin factory to ensure the normal production of Hengchi 5 and the mass production of Hengchi 6 and 7.

On August 25, Hengda Motor closed at HK $1.29/share, down 3.01% on the day, and the total market value 14 billion HK $.

Editor: Joey

Review: Wood Fish

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Original title: "Sudden! Evergrande Late Night Announcement"

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This is the first photo of the black hole at the center of the Milky Way released by astronomers on May 12. Xinhua News Agency

At 21:00 on May 12, Beijing time, the Event Horizon Telescope (EHT) cooperation organization held a press conference in seven cities around the world, including Shanghai, and announced the first photo of the supermassive black hole (Sagittarius A *) at the center of the Milky Way. For the first time in human history, the true face of the center of the Milky Way has been revealed.

This black hole photo was co-organized by the Event Horizon Telescope (EHT) and "taken" through a network of radio telescopes distributed around the world. Its release gives evidence that Sagittarius A * is the black hole in the center of the Milky Way, providing valuable clues for understanding this "behemoth" that is generally believed to inhabit the center of most galaxies. Its birth opened a new chapter in human exploration of the black hole in the center of the Milky Way.

Getting to know black holes for the first time

For the mysterious and vast universe, human beings are always full of imagination, and most of them come from the most primitive curiosity of human beings. With the development of science and technology, many imaginings have become scientific predictions, and through the unremitting exploration of generations of scientists, they have further become reality.

Modern astronomy tells us that the beautiful Milky Way we see at night is actually a flat disk-shaped spiral galaxy composed of hundreds of billions of stars. And our solar system, as an ordinary member of it, revolves around the center of the Milky Way 27,000 light-years away from the center of the Milky Way.

The "Galactic Center" was located in the direction of Sagittarius, which was covered with a large amount of gas and dust. It was difficult to observe in the visible light band, and the infrared and radio bands with longer wavelengths were less affected, which became the main way to study the "Galactic Center".

In 1933, when Carl Jansky of Bell Labs published a paper announcing the discovery of radio radiation possibly originating from the center of the Milky Way galaxy, it was the first time that humans had captured radio waves in the depths of space, but scientists at the time knew nothing about the secrets behind this intense radio radiation. Over the next three decades, Jansky’s findings were not only confirmed, but also traces of intense radio radiation were found in other, more distant galaxies.

Similar findings have led theorists to make bold predictions that galaxies harbor supermassive black holes at their centers, which are sources of intense radio radiation.

Black holes are cosmic celestial bodies that make many people curious. But few people really understand this cosmic "monster".

What is a black hole? "In layman’s terms, a black hole is actually the remains of a huge star," said Qin Ruiqiang, president of the Hebei Astronomy Amateur Association.

According to the introduction, the interior of a star is constantly undergoing thermonuclear reactions. When a star ages, it uses up the fuel in the center due to thermonuclear reactions, and there is not much energy produced by the center. At this time, it can no longer bear the huge weight of the shell. Therefore, under the weight of the shell, the core begins to collapse, and matter will inexorably "march" towards the center point. At this time, a supernova explosion will occur for a long time, until finally the star forms a star with a volume close to infinity and an almost infinite density, which is a black hole.

To fly from Earth to space, a rocket needs to reach a speed of 7.9 kilometers per second. As the mass of the Earth continues to increase, its surface attractive force will also increase, and the rocket will escape the Earth at an increasing speed. When this speed reaches 300,000 kilometers per second, nothing can escape the celestial body, including light.

A black hole is this celestial object that even light cannot escape, and this region is known as the black hole’s event horizon.

Inside, no light can escape, and all matter and mass gather at the singularity at the center of the black hole, where the curvature of space-time is infinite and the attractive force is infinite. Once inside the event horizon, all the laws of physics we know about the world break down.

In 1971, astronomers Nader Lindenberg and Martin Rees first predicted that there was a supermassive black hole at the center of the Milky Way. Because of the nature of black holes, it cannot be directly observed. But as the black hole swallows other matter, it forms an accretion disk, in which a large amount of matter rotates, rubs, and warms around the black hole, making the temperature here reach millions of degrees Celsius and appear very bright.

Black holes are one of the rarest cases in the history of science, developed to the point of exhaustion as a mathematical model without any observational evidence to prove their theory correct. In the early 20th century, black holes became widely known by Einstein’s general theory of relativity, but scientists did not discover the first black hole until 1970.

Although scientists have long simulated the appearance of black holes in supercomputers, they have long hoped to take a picture of them.

Photographing a black hole

With the continuous advancement of technology, humans can finally take pictures of black holes. Scientists chose two supermassive black holes as "models".

Released this year is Sagittarius A *, the supermassive black hole at the center of the Milky Way, 27,000 light-years from Earth and more than 400 times the mass of the Sun. The black hole image released in 2019 is from the galaxy M87, which is farther and larger, 55 million light-years away from Earth and 6.50 billion times the mass of the Sun.

"People observe these two black holes from the earth, they are very small, and the apparent diameter of the ring structure is only about 40 to 50 microarc seconds." Qin Ruiqiang introduced that a microarc second is about the size of the period at the end of an article on the earth when viewed from the moon. The two black holes seem to be a "doughnut" on the surface of the moon 380,000 kilometers away from the ground.

Such a small apparent diameter challenges the angular resolution of telescopes.

"Angular resolution is a term that describes the capabilities of a telescope," Mr. Qin said. The smaller the angular resolution, the better the telescope’s ability to distinguish distant celestial bodies, and the clearer the images we can obtain.

The optical telescope is affected by the lens process and the earth’s atmosphere, and its resolution is weak. Even the 39.3-meter European Extremely Large Telescope under construction has a theoretical limit angular resolution of only 1,000 microarcseconds, which is still far from 50 microarcseconds.

Therefore, scientists thought of radio telescopes.

The aperture of a single radio telescope can reach tens of meters or even hundreds of meters. Although the resolution is much lower than that of optical telescopes of the same aperture due to its longer observation wavelength, scientists can use a VLBI (Very Long Baseline Interferometry) technology to form two or more radio telescopes into a larger aperture radio telescope, and improve the resolution by increasing the aperture.

According to reports, the black hole photos released in 2019 were also contributed by the Shanghai Tianma Telescope. It formed the East Asia VLBI Network with several stations in South Korea and Japan to conduct observations. The addition of the Tianma Telescope has improved the quality of East Asia VLBI maps by 53%.

Although Sagittarius A * is closer to Earth, photographing it is much more difficult than M87 *. The achievement was achieved by the whims of more than 300 researchers from 80 research institutions around the world.

The EHT collaboration "combined" eight radio telescopes in six geographic locations around the world to form a so-called "Event Horizon Telescope" with unprecedented sensitivity and resolution.

In 2017, the eight telescopes, which travel north to Spain and south to the South Pole, cast a "big net" at selected targets to "retrieve" massive amounts of data to give us a picture of what a black hole looks like. But the observation window left to scientists is very short, only about 10 days per year.

In addition to the limitation of observation time, photographing black holes is also extremely demanding in terms of weather conditions. "Water in the atmosphere has a significant impact on this observation band, and water affects the intensity of radio waves, which means that precipitation can interfere with observations." As a result, experts say, the eight telescopes are located in areas with high altitudes, very little rainfall and a very high probability of sunny days.

In addition, successful imaging requires all telescopes to be fully synchronized in time. During observations, each radio telescope collects and records radio wave signals from the vicinity of the target black hole, which are integrated to obtain an image of the event horizon. To ensure signal stability, the EHT uses atomic clocks to ensure that the signals it collects and records are synchronized in time.

Chi-kwan Chan, a scientist at the Steward Observatory in the United States, the Department of Astronomy and the Institute of Data Science at the University of Arizona, has described the difficulty of observing Sagittarius A * this way: "The surrounding gas is rotating around Sagittarius A * and M87 * at a high speed at almost the speed of light. It takes a few days to several weeks for the gas to circle M87 *, but for the much smaller Sagittarius A *, the gas can circle once in a few minutes. This means that as the EHT observes Sagittarius A *, the brightness and pattern of the gas surrounding the supermassive black hole are also changing rapidly over time. Taking a picture of Sagittarius A * is a bit like taking a clear picture of a puppy chasing its tail."

In the future, EHT will make a black hole "movie"

Using existing images of two black holes with masses more than 1,500 times different, scientists can further examine the attractive forces in extreme environments.

The photo of Sagittarius A * was made from a combination of many photos extracted from the EHT observation data in 2017. Since then, in 2018, 2020 and 2021, the EHT cooperation organization has not stopped the pace of observation research. Moreover, the number of EHT stations continues to increase. In 2018, three new stations were added, including the Greenland Telescope, and the coverage of the observation array was further expanded.

In future plans, more telescopes will be used to expand the EHT observation array.

In addition to the increase in the number of telescopes, starting in 2023, the EHT will conduct observations in the 0.87mm band, which will improve the resolution by nearly 50% compared to observations in the 1.3mm band under the same circumstances. Sagittarius A * and M87 * remain the most important scientific targets of the EHT collaboration, and astronomers are exploring how they change over time and studying the surrounding magnetic field.

The continued expansion of the EHT population and technological innovation will allow scientists to share more compelling astronomical photos, and even "movies" of black holes.

"Using the next-generation EHT to film such a’movie ‘of the black hole at the center of the Milky Way is the pursuit of astronomers." Some astronomers said so.

Scientists in our country have long been concerned about high-resolution black hole imaging research. In this EHT cooperation, scientists in our country actively participated in the joint promotion of early EHT international cooperation, the joint application of EHT observation time, the observation operation of the Maxwell Telescope in Hawaii, and the post-data processing and analysis.

Scientists will also aim their telescopes at other sources to make more "doughnuts," experts say, a goal that could be achieved by building space telescopes because other "doughnuts" are smaller. (Wang Ludan, Hebei Daily reporter)

　　What can artificial intelligence do when it is considered invincible? What can artificial intelligence still not do in the relatively long future? On the afternoon of August 29th, Li Deyi, an academician of China Academy of Engineering, Eurasian Academy of Sciences and chairman of China Artificial Intelligence Society, gave a keynote speech on the topic "Why is artificial intelligence not conscious yet?".

　　Li Deyi’s first question is the biological attribute of consciousness. There are three kinds of consciousness, the first level of primary consciousness is called perceptual consciousness, the higher level is called self-consciousness, and the higher level is called group consciousness.

　　The biological basis of consciousness is the clear boundary perception ability of biological individuals from brain neurons to terminal brain, which must separate me from the non-self environment. Li Deyi cited how difficult it is to make artificial skin, which includes seven functions: body temperature, self-protection, induction, metabolism, absorption, breathing, secretion and excretion.

Li Deyi gave a keynote speech at the forum.

　　Li Deyi mentioned that when the human body surface is stimulated, it is only a few tenths of a square meter, so you should feel it and take measures. More than that, the total transmission from the skin nerve endings of the body to the whole brain leads to a period of 150 thousand kilometers and milliseconds. He believes that there is a long time to make such artificial skin artificially, and it may take another hundred years. That is to say, it will take about one hundred years to distinguish me from non-me.

　　As far as higher consciousness is concerned, memory is very important. Memory can be divided into instantaneous memory, short-term memory and long-term memory, and memory is definitely not storage. Li Deyi said that instantaneous memory triggers short-term memory, short-term memory triggers long-term memory, and information stored in long-term memory forms intelligence, so high-class intelligence can consciously create new intelligence.

　　The second question, Li Deyi mentioned the social attribute of intelligence. In a typical case, two children fell into the wolf’s den and didn’t speak the language when they spoke it. Later, they couldn’t teach it back in kindergarten, which means that a good gene is not very intelligent if it is not in a good ecological environment.

　　Li Deyi said, I have the view that language, knowledge and civilization are mainly acquired, and this is the social attribute of intelligence. I wrote a book more than ten years ago, and I said in the preface: the human brain is a small universe, which is the mapping between nature and society.

　　Therefore, Li Deyi personally thinks that there are at least three pieces of human intelligence, namely, memory, calculation and interaction, which lead to human intelligence.

　　The third question, Li Deyi mentioned the correlation analysis between intelligence and consciousness.

　　Now, the formalization of computing intelligence, Go intelligence, chat intelligence and driving intelligence is well done, even surpassing human intelligence, and artificial intelligence can exist without consciousness. Li Deyi said, I personally think that artificial intelligence is an extension of human intelligence, which can exist without consciousness.

　　"As the creator of robots, humans don’t need machines to be conscious. Why do we have to have machines to be conscious? How good is it to be one of our tools? As long as we can drive, do math problems and serve our people according to our needs, isn’t it? I believe that human beings are smart enough to control the machine without consciousness. "

　　At the end of his speech, Li Deyi said that the evolutionary history of human beings is to make and use tools to expand the history of human development. No matter from sickles and axes to the present atomic bombs, we are solving the problem that matter and energy are both power tools, power tools are an off-topic extension of human physical fitness, while artificial intelligence is an off-topic extension of human intelligence, and both power tools and intelligent tools are unconscious.

　　As for the biggest impact of the era of artificial intelligence, a new species that surpasses human beings suddenly appears on the earth. Are these future lives human friends or natural enemies? Li Deyi said that it is too early to draw a conclusion at present. To say the least, even if we create such skin in the future and can distinguish physical boundary perception, there are two other conditions to confront us humans, namely, they have their own language and writing.

　　Li Deyi believes that this trilogy will take hundreds of years or even longer. Therefore, rather than worrying about whether the rising artificial intelligence will pose a threat to human beings, the intelligent age is more bound by human ethics and behavior norms. (Reporter He Liping)