China Youth Network, Qingdao, March 24th (Reporter Su Xiqiang) "Let the extras C debut". On March 23rd, the national group performance competition of Qingdao Oriental Film Capital and the project of "Group Performance Commune" was launched in Zhujiang College of South China Agricultural University.

　　Gao Yalin, Vice President of Actors Committee of China Federation of Radio, Film and Television Social Organizations, Xu Wenguang, Secretary-General Zhang Ge, actor Mars, actor Wan Guopeng, well-known host Han Bin, and Gong Junquan, Chairman of Zhujiang College of South China Agricultural University, and other guests were invited to sit on the audition site to help the group perform their dreams.

　　On the morning of the same day, at the audition site of Guangzhou Station of "Group Performance Commune", teachers, students, novel writers, ten-year walk-on players from all over the country showed their talents, singing, dancing, reciting or selecting video clips, from stage performance to costume modeling, they all made great efforts.

　　"I like watching movies and TV series since I was a child, but I don’t have a chance to play." Player 738 from the northeast said. He grasped the smart essence of Aidou, imitated KUN to play basketball, and burst into laughter at the scene. Subsequently, Judge Xu Wenguang gave an impromptu proposition of "Boyfriend Following Girlfriend". This player performed the double drama of spy lurking and family ethics. His lines are fluent and have a funny talent, and he was praised by Xu Wenguang.

　　Player No.735, who loves dubbing and yearns for acting, plays the roles of Mi Yue and Mi Shu in legend of miyue, showing the rivalry between sisters to the fullest and winning unanimous praise from the judges and teachers.

　　In view of the emotional and lines problems in the performance of the contestants, the judges all taught the performance skills without stint, emphasizing "really listening, really seeing and really feeling". Xu Wenguang and the contestants staged a dialect battle, which made the audience laugh. He pointed out that language is the first element of the actor’s own carrier, and acting must first express the language clearly.

　　After the auditions, Gao Yalin shared his acting experience with the contestants: "Acting is actually self-training, and it needs to express true feelings, and inner belief is particularly important. On the road of acting, there is no shortcut. Only by being down to earth can you realize your dreams. "

　　Xu Wenguang, an old opera player, believes that the inspiration for performance comes from life, and the enthusiasm and seriousness of the group performers deeply touched him. "The improvement of the level of young actors also indicates the development potential of film and television dramas and fully demonstrates our cultural consciousness."

　　With "I am a passerby", Wan Guopeng, a representative who grew up from a mass actor to a professional actor, said frankly that the road to chasing dreams is not easy. He encouraged the group performers to seize the opportunity of group auditions. "Love and persistence are the most important things."

　　During the activity, Gao Yalin, Xu Wenguang, Zhao Rui, Mars, Zhang Ge and Han Bin were specially invited by Zhujiang College of South China Agricultural University as visiting professors. "On the one hand, it is necessary for the school to continue to develop on the road of high-end, international and personalized running, and it is also conducive to the cultivation and incubation of performing talents." Gong Junquan said, "On the other hand, paying attention to extras requires the participation of the media, film and television bases, including our schools, to jointly help the development and growth of extras."

　　Du Cuihui, the representative of the organizer of the "Group Performance Commune" project and the head of the activity planning department of Qingdao Lingshan Bay Film and Television Bureau, said at the scene that he hoped that through the implementation of the "Group Performance Commune" project, the group performance groups would be guided, standardized and cared for, and their inspirational stories would be shared to establish a new trend in the film and television industry.

　　Zhao Rui, director of the program operation department of Shandong Satellite TV and producer of the "Group Performance Commune" project, said that a total of 35 contestants advanced to the semi-finals in this Guangzhou station sea election, and 2 contestants went through to the finals. Next, "Group Performance Commune" will hold an off-line audition and rematch in Beijing at the star base of Building C, No.6 Gaobeidian North Garden, Chaoyang District, Beijing on March 30th and 31st, with actor Lin Yongjian as the judge of the rematch. Performance lovers can also register online through the WeChat WeChat official account of Lingshan Bay Film and Television Bureau, the WeChat WeChat official account of Shandong Satellite TV and the Group Performance Commune in DingTalk.

　　It is reported that the eight finalists in the National Group Performance Competition of Group Performance Commune will participate in the recording of reality show, which will be broadcast simultaneously on Shandong Satellite TV and video platform in June 2019. The top eight contestants can also get the opportunity to perform two scripts provided by Xu Weibing, co-founder of the Chinese International Screenplay Festival, and be personally directed by actor Tang Guoqiang.

　　General Secretary of the Supreme Leader pointed out: "Marxism has provided a powerful ideological weapon for China’s revolution, construction and reform, and made China, an ancient oriental country, create an unprecedented development miracle in human history.". Under the guidance of Marxism, the Communist Party of China (CPC) United and led the people of China to forge ahead and make unremitting efforts, and achieved great victories and brilliant achievements in revolution, construction and reform. Practice has fully proved that adhering to the guiding position of Marxism is the choice of history and people.

　　Marxism is a scientific theory.

　　History and people choose Marxism because Marxism is a scientific world outlook and methodology. The scientific and revolutionary nature of Marxist theory stems from the scientific world outlook and methodology of dialectical materialism and historical materialism, which provides us with a powerful ideological weapon to understand and transform the world and points out the correct direction for world socialism.

　　Marxism profoundly reveals the universal laws of the development of nature, human society and human thinking, points out the direction for the development and progress of human society, and provides us with a scientific understanding tool for observing the world, analyzing problems and solving contradictions. The General Secretary of the Supreme Leader pointed out: "In the history of human thought, no ideological theory can reach the height of Marxism in terms of scientificity, truth, influence and communication, and no theory can have such a huge impact on the world like Marxism." Although the era we live in has undergone tremendous and profound changes compared with that of Marx, from the perspective of 500 years of world socialism, we are still in the historical era pointed out by Marxism. No matter how the world changes, Marxism still occupies the commanding heights of truth and morality, and it is still an ideological system and discourse system with great international influence.

　　Marxism can take root in the land of China and the hearts of the people of China, and become the fundamental guiding ideology of the cause of the party and the country, relying on the power of scientific truth. Under the guidance of Marxism, the Communist Party of China (CPC) people led the people of China to complete the new-democratic revolution, realize national independence and people’s liberation, completely end the history of the semi-colonial and semi-feudal society in old China and open a new historical era; Completing the socialist revolution, establishing the basic socialist system and promoting socialist construction have laid a solid foundation for China’s prosperity, strength, development and progress; Carry out the new great revolution of reform and opening up, create, persist in and develop Socialism with Chinese characteristics, greatly liberate and develop social productive forces, greatly enhance the vitality of social development, and achieve great achievements in socialist modernization. All these have confirmed the scientificity and truth of Marxism.

　　Marxism is the theory of the people.

　　History and people choose Marxism because Marxism is the theory of the people. Marxism explores the road of human freedom and liberation from the standpoint of the people, emphasizing relying on the people to advance history and promote human liberation, which points out the direction for the ultimate establishment of an ideal society without oppression, exploitation, equality and freedom for all.

　　General Secretary of the Supreme Leader stressed: "Marxism is profound and profound. In the final analysis, it is a sentence, seeking liberation for mankind." The question of why people are a fundamental and principled one. Adhering to the people’s position, representing the people’s interests and standing on the people’s side are the fundamental positions of Marxism. Marxism can be carried forward, full of vitality and have a wide and profound impact in China. One of the important reasons is that this scientific theory always adheres to the people’s position and takes the pursuit of the liberation of all mankind, including the people of China, and the free and all-round development of human beings as its own responsibility. Over the past 100 years, in the historical process of seeking happiness for the people of China and rejuvenation for the Chinese nation, our party has firmly established the fundamental purpose of serving the people wholeheartedly and has always taken the people’s position as its fundamental political position; Carry out all the mass line of serving the masses, relying on the masses, coming from the masses and going to the masses; Adhere to the people-oriented, ruling for the people concept; Take the people’s support, disapproval, happiness and disapproval as the fundamental criterion to measure the gains and losses of all work; Wait a minute.

　　General Secretary of the Supreme Leader pointed out: "It is the initial intention of the Communist Party of China (CPC) people to seek happiness for the people. We must always remember this initial heart and always take the people’s yearning for a better life as our goal. " Since the 18th National Congress of the Communist Party of China, the CPC Central Committee with the Supreme Leader as the core has persisted in taking the people’s yearning for a better life as the goal, adhering to the people-centered development thought, and persisting in the initial intention and mission of seeking happiness for the people of China and rejuvenation for the Chinese nation. On the basis of continuing to promote development, it has made great efforts to solve the problem of insufficient development imbalance, vigorously improve the quality and efficiency of development, and better meet the growing needs of the people in economic, political, cultural, social and ecological aspects. Grasping the most direct and realistic interests that the people are most concerned about, constantly safeguarding and improving people’s livelihood, promoting social fairness and justice, achieving at a higher level education for young children, learning and teaching, income from labor, medical care for the sick, support for the old, shelter and support for the weak, making people’s sense of well-being, happiness and security more substantial, more secure and more sustainable, and making continuous progress towards achieving common prosperity for all people, vividly explaining.

　　Marxism is a practical theory.

　　History and people choose Marxism because Marxism is a practical theory. The foundation and motivation of truth knowledge is practice, and the standard for testing truth is practice in the final analysis. Marx said: "The degree to which theory is realized in a country always depends on the degree to which theory meets the needs of this country." History and people choose Marxism precisely because Marxism meets the practical needs of China and has stood the test again and again in practice.

　　The General Secretary of the Supreme Leader pointed out: "Marxism is not a study, but was founded to change the historical destiny of the people, formed in the practice of people’s liberation, and enriched and developed in the practice of people’s liberation, providing a powerful spiritual force for people to understand and transform the world." Marxism not only looks at and explains the world from the viewpoint of practice, but also emphasizes changing the world with practice. The viewpoint of practice and the viewpoint of life are the basic viewpoints of Marxist epistemology, and practicality is the remarkable feature that distinguishes Marxist theory from other theories. As Marx said, "All social life is practical in essence" and "Philosophers only interpret the world in different ways, and the problem is to change the world". To grasp the practical characteristics of Marxism, we should link Marxism with the historical practice in China since modern times, especially with the practice in Socialism with Chinese characteristics. Under the guidance of Marxism and the leadership of the Communist Party of China, the Chinese nation has made a great leap from the sick man of East Asia to the station, from standing up to becoming rich, and from becoming rich to becoming strong, which fully demonstrates the practical power of Marxism.

　　Since the 18th National Congress of the Communist Party of China, in the face of the weak recovery of the world economy, frequent local conflicts and turmoil, and intensified global problems, and a series of profound changes in China’s economic and social development, the CPC Central Committee with the Supreme Leader as the core has adhered to Marxism as the guidance, constantly promoted theoretical innovation based on practice, put forward a series of new ideas, new ideas and new strategies, promulgated a series of major principles and policies, and launched a series of major initiatives. We have promoted a series of major tasks, solved many long-term unsolved problems, accomplished many major events that we wanted to do in the past but failed to do, promoted historic changes in the cause of the party and the state, demonstrated the theoretical quality of China-based Marxism, systematically answered the important issues of what kind of Socialism with Chinese characteristics and how to adhere to and develop Socialism with Chinese characteristics in the new era from the combination of theory and practice, and opened up a new realm of Marxist development.

　　Marxism is a developing and open theory.

　　History and people choose Marxism because it is an open and developing theory. Marxism is an open theoretical system that develops with the development of times, practice and science. It does not end the truth, but opens the way to the truth. Marxism has profoundly changed China, and China has also greatly enriched Marxism, and the two have developed through interaction. It is the source of Marxism’s eternal vitality to unify the persistence and development of Marxism and constantly create new theories in combination with new practice.

　　Based on the foundation of the times. Marxism was born to meet the needs of the times, always keeping pace with the times and sharing the destiny with the people. General Secretary of the Supreme Leader pointed out: "After long-term efforts, Socialism with Chinese characteristics has entered a new era, which is a new historical orientation for China’s development." This important political conclusion endows the historical mission, theoretical follow-up, objectives and tasks of the Party with new connotation of the times, and provides us with time coordinates and basic basis for profoundly grasping the new stage and new characteristics of the development of contemporary China and scientifically formulating the Party’s line, principles and policies. In the new era, the principal contradictions in our society have changed, the theoretical innovation of the Party has made a new leap, the cause of the Party and the country has set new goals, the relationship between China and the world has opened up a new situation, and the Communist Party of China (CPC) has taken on a new look. To uphold and develop Marxism, we must base ourselves on the foundation of the times, grasp the pulse of the times, listen to the voice of the times, embody the times, grasp the regularity and be creative, and guide new practice with developing Marxism and China Marxism.

　　Answer the question of the times. The key to Marxism’s eternal youthful vitality lies in constantly answering new topics raised by the development of the times and responding to new challenges faced by human society. A history of Marxist development is a history in which Marx, Engels and their successors constantly develop according to the times, practice and understanding, and it is a history in which all outstanding ideological and cultural achievements in human history are constantly absorbed to enrich themselves. A history of Marxism in China is a history of guiding new practice with developing Marxism. To uphold and develop Marxism, we must answer the questions of the times in studying and solving problems, combine the basic principles of Marxism with the concrete reality of China in the new era, constantly explore and answer the new topics raised by the development of the times, respond to the new challenges faced by human society, clear up the ideological fog that puzzles and restricts the development of practice, constantly promote the modernization and popularization of Marxism in China, and constantly open up a new realm of Marxist development.

　　Lead the change of the times. The world today is experiencing a great change that has never happened in a century. The international structure and system are undergoing profound adjustments, the global governance system is undergoing profound changes, the international power balance is undergoing the most revolutionary changes in modern times, and there is a major trend that affects the historical process and trends of mankind around the world. Contemporary China is experiencing the most extensive and profound social changes in China’s history, and is also carrying out the most grand and unique practical innovation in human history. We have unimaginably good conditions for development in the past, but we are also faced with all kinds of foreseeable and unpredictable difficulties and challenges. The situation and environment are changing rapidly, the tasks of reform, development and stability are heavy, and the challenges of contradictions and risks are numerous, which is an unprecedented test for our party’s governance. To uphold and develop Marxism, we must lead the changes of the times, profoundly grasp the dialectical relationship between the great changes in the world that have never happened in a hundred years and the overall situation of the great rejuvenation strategy of the Chinese nation, base ourselves on the overall situation, coordinate the overall situation, lead the changes, create new ones, achieve progress in change, break through in change, win in change, and lead the great changes in the world in a direction that is conducive to the great rejuvenation of the Chinese nation and world peace and progress.

　　(The author is a professor of philosophy at Peking University)

[Original of Truck House] At every high-speed intersection, we can always see a green passage for transporting fresh agricultural products vehicles. The green transportation passage, which was originally intended to improve traffic efficiency, often causes card friends to vomit, and it is not possible to reduce tolls with a little carelessness. A few days ago, we followed Kayou to transport cabbage from Hebei to Guangzhou. In this short 2000 kilometers, we had a deeper understanding of the high-speed green passage, and it was a lot of trouble to have irregular documents.

● The four certificates of Green Pass inspection must be complete.

I believe that most people will jump out of these keywords in an instant, such as time is short, people are too tired, cars are pressed and freight charges are deducted. In fact, regardless of these factors, it is not a simple matter to pass the toll station in the green transportation. The green passage is more like a "checkpoint". Here, let’s briefly introduce the inspection process of Lutong, and card friends who have just contacted Lutong can also learn about it.

1, into the green channel, the first step is naturally weighing, weighing. At this stage, most areas have issued corresponding regulations, where "transporting fresh agricultural products""Vehicles with overload will not be able to enjoy the preferential policy of toll reduction and exemption.

2. Check the documents. At present, the high-speed toll stations headed by Hunan and Guangdong need to check four certificates when passing the inspection. That is, driver’s license, driving license, road transport qualification certificate and road transport operation certificate. Where the documents are not uniform, you will not be able to enjoy the corresponding preferential policies such as toll reduction. It is recommended that all card friends prepare their certificates to avoid unnecessary trouble.

3. Take photos. The toll booth staff will take detailed photos of license plates, vehicle boxes, goods, photos and goods and report them, and judge whether the goods loaded by vehicles are "fresh agricultural products" on the spot.

4. Release. Vehicles that are judged as being transported by Lvtong can be released directly. If vehicles that do not meet the catalogue of fresh agricultural products and mixed vehicles are found, they will not be able to enjoy the preferential policy of toll reduction.

The principle of green channel inspection of goods is intended to be accurate and rapid, but in fact, the passage efficiency is not high.It is roughly 3-4 times the time of normal traffic vehicles.Moreover, the documents must be available. When we actually passed the toll station on the way from Hebei to Guangzhou, fortunately, another old driver carried his qualification certificate with him, otherwise the toll would be a big expense.

So, in what circumstances can’t you enjoy the toll reduction policy of Green Link?

1. Failing to meet the standards defined by "legal loading of complete vehicles";

Two, the "four certificates" carried by the driver of the cargo transport vehicle (Driver’s license,Driving license, road transport license, road transport practitioners qualification certificate), which is incomplete or illegal after inspection;

Three, overloading, no card, refused to pass the designated lane, refused to accept the inspection management of vehicles.

In addition, most high-speed management departments in Sichuan have issued corresponding announcements one after another. If the overall dimensions and total weight of trucks driving on the expressway do not exceed the following standards, they will be regarded as "normally loaded vehicles" and enjoy the preferential policy of vehicle toll restriction. Vehicles that exceed the vehicle load will not be allowed to enter the expressway or enjoy the preferential policy of toll reduction. Link: There is no discount for the implementation of high-speed overload on the 4.2-meter light truck in Sichuan.

I suggest that all card friends, no matter what industry they are engaged in, must prepare all procedures and certificates for inspection by the traffic control department. Especially novices who have just entered the road transport industry, do their homework in advance to avoid unnecessary troubles. (Text/Tu Zusheng)

　　This week, a mutant strain of COVID-19 called "Delta" sounded a new alert for the global epidemic.

　　According to the Guardian, 99% of the new cases in Britain are infected with the "Delta" strain. WHO pointed out that 92 countries and regions around the world have detected the spread of the "Delta" strain. On June 25th, WHO Director-General Tan Desai was worried.

　　WHO Director-General Tedros Adhanom Ghebreyesus:"Delta" mutant strain is the most transmissible strain found so far, which has appeared in at least 85 countries and regions and is spreading rapidly among unvaccinated people.

　　A few days ago, WHO confirmed that the strain had spread to 92 countries and regions.

　　Swaminatan, chief scientist of WHO:Because the spreading ability of the "Delta" mutant strain has been significantly enhanced, this mutant strain in Covid-19 is becoming the main Covid-19 mutant strain in the world.

　　The "Delta" mutant strain was first discovered in India in October, 2020, and was named B.1.617.2 scientifically.

　　In May this year, in order to avoid the stigma associated with a specific country and facilitate its use, WHO announced the use of Greek letters to name the mutant strains found in various countries.

　　The four mutant strains listed as "needing attention" by WHO have new names corresponding to the first four letters of the Greek alphabet: alpha, beta, gamma and delta.

　　Among them, alpha, beta and gamma mutant strains all have a mutation called "N501Y", which seems to strengthen the infectivity of the virus to cells and make the virus spread more easily.

　　Beta and gamma mutant strains also have a key mutation, called "E484K", which may enable the virus to avoid being blocked by the immune system.

　　The mutation of "Delta" mutant strain is different. Initially, "Delta" was considered as a "double mutant" virus.

　　Maria Van Kokhov, Technical Director of WHO Health Emergency Project:First discovered and reported by India, there are two mutations, E484Q and L452R.

　　Djamil, dean of Trivedi School of Biological Sciences, Asoka University, pointed out in an exclusive interview with Xilong Times that the statement of "double mutation" is not accurate. The Delta variety contains 15 mutations in total, 6 of which occur in spike protein, and 3 of them are key: L452R, E484Q and P681R.

　　L452R improves the ability of virus to invade cells, E484Q helps to enhance the immune escape of virus, and P681R can also make virus enter cells more effectively.

　　The combined effect of these mutations makes the "Delta" mutant strain partially avoid some neutralizing antibodies, so it is more infectious.

　　Maria Van Kokhov, Technical Director of WHO Health Emergency Project:We know that the "Delta" variant does increase the spread, which means that it can be more easily spread among people. This is related to known mutations, which allow viruses to adhere to cells and invade cells more easily.

　　The BBC synthesized data from Imperial College London and The Lancet magazine, and compared the basic infection number of COVID-19 mutant strain with other viruses, that is, R0.

　　R0 of "Alpha" mutant strain is 4-mdash; 5. That is to say, without any intervention of epidemic prevention measures, a patient infected with "Alpha" mutant strain can continue to transmit the virus to 4— Five people.

　　R0 of Delta mutant strain is 5-mdash; 8；

　　The R0 of mumps is 12;

　　The R0 of measles is 18.

　　A study in The Lancet, an international medical journal, shows that the risk of hospitalization is twice as high for people infected with the "Delta" mutant strain as for people infected with the "Alpha" mutant strain.

　　Hairdressing shop owner Shawang:We used to earn 300,000 to 350,000 rupees a month, but now we are completely losing money, and most hairdressers have returned to their villages.

　　This is Maharashtra, one of India’s major economic and cultural centers.

　　According to the international authoritative journal Nature, in the past few months, the highly contagious "Delta" mutant strain has spread rapidly in India and has become the main strain prevalent in Maharashtra. But the ferocity of "Delta" does not stop there.

　　In March this year, researchers first discovered a further variant of the "Delta+"strain in Europe. In early April, "Delta+"was also detected in Maharashtra.

　　According to a report by India’s New Delhi TV Station on June 23rd, at least 40 cases of "Delta+"infection have been found in seven Indian states including Maharashtra, Kerala and Madhya Pradesh, among which Maharashtra has reported more than 20 cases.

　　Trust card for director of hospital intensive care unit:A large number of vulnerable people live in rural areas, suburbs and small towns. This time we expect the virus to spread to these areas intelligently.

　　At present, two-thirds of the new cases in COVID-19 come from rural areas, and about 30% of the urban population has been vaccinated with at least one dose of COVID-19 vaccine, compared with only 15% in rural areas.

　　Local health workers also said: "When we go for virus testing or talk to them, sometimes people will tell us to leave, otherwise they will beat us, and sometimes they will throw stones and bricks."

　　This week, the Ministry of Health of India pointed out that the "Delta+"strain has stronger transmission ability, and adjusted the classification of this new strain from "variant of interest" to "variant of concern".

　　Maharashtra Health Minister Top:We have issued instructions to all subordinate officials to pay close attention to infection cases related to "Delta+"variant.

　　According to a report by the BBC on the 24th, the "Delta+"strain has been found in at least 10 countries including the United States, Britain, Portugal, Switzerland, Japan and Russia. Lisbon, the capital of Portugal, has recently entered a full blockade every weekend.

　　Portuguese National Guard spokesperson Cagnotto:Drivers know the rules, they know that it is forbidden to leave and enter Lisbon metropolitan area, and the traffic on Friday afternoon is much less than usual.

　　Newsstand operator:I think all measures to reduce the number of cases are good. I am located in the city center and I see that all foreign tourists don’t wear masks.

　　Lisbon and the Tejo Valley are the regions with the most serious epidemic in Portugal.

　　According to the report released by the Portuguese National Institute of Health, among the recent new cases in Lisbon, the infection cases related to the "Delta" mutant strain accounted for more than 60%, and some local epidemiologists believe that this proportion has reached 70%.

　　Due to the obvious deterioration of the epidemic, the United Kingdom removed Portugal from the British green navigation list in early June.

　　Simon, an English tourist in Portugal:I’m very angry. I’ve missed half my holiday. Now it costs me a lot of money to change my flight in order not to be quarantined after returning home.

　　On June 21st, Portuguese Health Minister temido said that the spread speed of the "Delta" mutant strain has exceeded the speed of vaccination.

　　Portuguese cabinet spokesman da Silva:We think it’s very important now not to let Lisbon’s current difficulties spread to other regions.

　　On June 23rd, the gymnasium of Lisbon University was temporarily used as the vaccination center for COVID-19, which was operated by the Portuguese Armed Forces to vaccinate people over 50 years old. President De appeared at the vaccination site.

　　Portuguese President De:We are here to call attention to this priority, and the Portuguese are racing against time with unity and cooperation.

　　On June 24th, during the EU summit, German Chancellor Angela Merkel said that Germany and Europe were treading on thin ice.

　　German Chancellor Angela Merkel:We need to be vigilant, especially in the face of Covid-19’s new variety "Delta", which reminds us to be cautious.

　　A few days ago, Merkel had just received the second dose of COVID-19 vaccine.

　　Willer, Director of robert koch Research Institute:Since the second week of June, because there is always a certain time lag in statistics, the proportion has reached 15%, but we think the proportion will certainly be higher today.

　　German Federal Minister of Health Span warned that it was only a matter of time before the Delta strain continued to spread and became the most important strain in Germany.

　　On June 23rd, the European Center for Disease Control and Prevention released the latest epidemic model forecast: It is estimated that by the beginning of August, 70% of the newly confirmed cases in the EU and EEA countries will be caused by the "Delta" mutant strain, and by the end of August, this proportion will rise to 90%.

　　Kruger, Director of the WHO Regional Office for Europe:The worrying "Delta" variety, showing stronger transmission and some immune escape ability, is preparing to take root in the European region.

　　In contrast, on June 24th, US President Biden appeared in Raleigh, the "Oak City" in North Carolina. According to Bloomberg, this is a vaccine trip.

　　US President Biden:The dangerous mutant strain continues to spread, and it is now a very common variant in the United States. People who are not vaccinated are very vulnerable, which is also a concern of experts about the "Delta" strain.

　　In May this year, Biden confidently announced the next stage of epidemic prevention goal in the United States, that is, 70% of American adults should be vaccinated with at least one dose of COVID-19 vaccine before July 4, the day of American independence, and 160 million American adults should be vaccinated with two doses.

　　However, according to the CDC data, as of June 22nd, only about 65% of adults in the United States have received at least one dose of COVID-19 vaccine. Only 55% in North Carolina. White House officials admit that Biden’s epidemic prevention goal may not be completed as scheduled.

　　White House COVID-19 Epidemic Response Coordinator Zienz:There is still a lot of work to be done in this country, especially for people aged 18 to 26. The fact is that many young people in the United States feel that the COVID-19 epidemic will not affect them, and they have no desire to get vaccinated.

　　On June 24th, a strange conversation between Biden and CNN reporter further aroused people’s anxiety.

　　In the eyes of some Americans, Biden was once again questioned as to whether he could be trusted, except for the new nickname "Joe the Terrible".

　　Defense lawyer Woodfield:For the first time in the history of our country, private employers told their employees that as a condition of your employment, you must take part in the vaccine test, which has never happened in the history of our country.

　　In Houston Methodist Hospital, Texas, hundreds of employees were fired or forced to resign because they didn’t want to be vaccinated. Nurse bridges took the lead in bringing a lawsuit against the hospital.

　　Bridges, a former nurse at Houston Methodist Hospital:At first, 117 people joined us, and now we will add another 70 people. We hope that Methodist hospitals will be responsible for their actions, and we hope that the public will know that we should not lose our jobs.

　　Bloomberg pointed out that the COVID-19 epidemic is spreading rapidly in several states with insufficient vaccination, especially in Missouri and Utah, where more and more young people go to hospitals. These data release a clear signal that the epidemic in the United States has rebounded.

　　Frederick, Chief Executive Officer of Missouri Mercy Hospital:At the end of this week, 60% to 65% of the patients who entered the intensive care unit were under 40 years old, which was shocking compared with last year.

　　According to the data released by the US Centers for Disease Control and Prevention on June 22nd, more than 20% of the newly confirmed cases in the United States in the last two weeks were infected with the "Delta" strain, while in the report released on June 8th, this figure was only about 6%.

　　Fauci, director of the National Institute of Allergy and Infectious Diseases:Now this proportion is 20%, and it can be predicted that it will become the main virus-causing strain in the next few weeks to a month.

　　At present, the high-profile European Championship is in full swing in 11 European countries, and in the face of the fierce counterattack epidemic, UEFA is also very headache about what to do in the next competition.

　　Not only that, there is only less than one month before the opening of the Tokyo Olympics. This week, Japanese public health experts also said that "the Tokyo epidemic tends to rebound, which is very worrying."

　　On June 25th, Beijing time, UEFA announced the best team in the group stage of the European Championship, among which Cristiano Ronaldo, the Portuguese star who was crowned the top scorer in the history of the European Championship finals, was selected with the highest score.

　　Wembley Stadium in London, England will be the venue for the semi-finals and finals of the European Championship. On June 22nd, UEFA announced that the British government has agreed to further increase the attendance rate of Wembley Stadium during the European Championship, and the opening rate of the stadium will increase from 25% during the group stage to 75%, which means that more than 60,000 spectators will be accepted in each of the three semi-finals on July 6th and 7th and the final on July 11th.

　　Wembley Stadium will witness the largest audience of British sports events in 15 months, the British Department of Digitalization, Culture, Media and Sports wrote on the top official Twitter.

　　British Health Minister Hancock:The European Championship is going well. The final will be held at Wembley Stadium. I also went to Wembley on Friday night. It was great to hear the noise of the crowd again.

　　However, the recent obvious deterioration of the epidemic in Britain has also caused many people to worry about whether holding large-scale events here will bring risks.

　　Italian Prime Minister Mario Draghi:Yes, I advocate that the finals should not be held in countries where the risk of infection is growing rapidly.

　　German Chancellor Angela Merkel:Britain is a high-risk area for virus variants, which means that anyone from Britain to Germany will need to be quarantined for 14 days.

　　Since May, the number of newly confirmed cases in Britain has increased rapidly, and has recently rebounded to more than 10,000 cases per day.

　　On June 25th, the British Ministry of Public Health said that among the newly confirmed cases in the past week, 96% were caused by the "Delta" strain, compared with 99% in the previous week, and the cumulative number of people suffering from the "Delta" strain in Britain has reached 11157.

　　British Prime Minister Johnson:This is why we are so worried about the "Delta" variant, which is now spreading faster than the third wave of epidemic predicted in February.

　　On June 18th, the match between England and Scotland was held at Wembley Stadium, and a large number of Scottish fans "went south" into London, which brought a lot of pressure to the prevention and control of the epidemic in London.

　　On June 13th, Sadiq Khan, the mayor of London, was photographed celebrating the 1-0 victory of the Three Lions in Trafalgar Square. The excited crowd seemed to have completely forgotten to observe the epidemic prevention regulations.

　　According to the British "Times" report, among the 24 teams participating in the European Championship, except England, Scotland and Wales, the countries and regions to which the other teams belong are all on the orange or even red list of the epidemic in the UK. According to the British epidemic prevention policy, they must be quarantined for 10 days after arriving in the UK. Previously, the British government granted "isolation exemption" to the players, coaches and staff of the participating teams in order to hold the event smoothly. However, UEFA requested that 2,500 officials and VIPs also be granted "isolation exemption" so that they can directly enter Wembley Stadium to watch the game.

　　This puts the British government in a dilemma. If it accepts UEFA’s request, it will arouse the dissatisfaction of its own people. If it refuses, UEFA threatens to move both semi-finals and finals to Budapest, Hungary, where the epidemic situation is well controlled, which is also unacceptable to Britain.

　　The same dilemma also happened in Japan. On June 20th, the Olympic Village of the Tokyo Olympic Games was opened to the media for the first time, and the place where more than 10,000 athletes from more than 200 countries and regions lived was finally presented to the world.

　　Seiko Hashimoto, Chairman of the Tokyo Olympic Organizing Committee:With regard to the response to the COVID-19 epidemic, up to now, 80% of all people from all over the world have been vaccinated.

　　However, just the day before, on the 19th, one of the nine members of the Ugandan delegation who arrived in Tokyo tested positive for COVID-19 screening at the airport. Japanese Olympic Secretary Tamayo Marukawa confirmed that this person was infected with the "Delta" mutant strain. However, all members of the Ugandan delegation had completed two doses of vaccination before going to Japan and provided negative test certificates within 72 hours. On the 23rd, another member of the Ugandan delegation was tested positive, and many Japanese workers who came into contact with it were also isolated, which cast a shadow over the upcoming Olympic Games.

　　On July 23rd, the Tokyo Olympic Games is about to open, less than a month from now. According to the Nihon Keizai Shimbun, about 94,000 people will enter Japan during the Olympic Games, which has sparked a debate about the number of spectators at the Olympic Games.

　　On June 21st, the Japanese government, the Tokyo Olympic Organizing Committee, the Tokyo Metropolitan Government, the International Olympic Committee and the International Paralympic Committee held five-party talks online, and it was formally decided that the number of people watching the Olympic Games on site should not exceed 50% of the venue capacity, with a maximum of 10,000 people.

　　Seiko Hashimoto, Chairman of the Tokyo Olympic Organizing Committee:We have received a suggestion that if no spectators are allowed to enter, we can hold the Olympic Games more safely.

　　Many experts, including Shigeru Omi, the chief medical consultant of the Japanese government, believe that it is the least risky way to hold an event without an audience.

　　Only in this way, the publicity effect of the Tokyo Olympic Games will be weakened. For the upcoming election of the Japanese House of Representatives after the Olympic Games, the boosting effect will also be discounted. Kyodo News noted that Prime Minister Suga Yoshihide was anxious about this situation.

　　Japanese Prime Minister Suga Yoshihide:If it is necessary to implement a state of emergency, I will respond flexibly, not open the stadium to any audience, and hold an event with public safety as the first priority.

　　According to the research forecast of Xipu Bo, a professor of epidemiology at Kyoto University, by July 23rd, the opening of the Tokyo Olympic Games, the positive cases caused by the "Delta" mutant strain will account for 70% of all newly confirmed cases.

　　According to the results of a poll released by Kyodo News, among 2,000 respondents, 86% are worried that the Olympic Games and Paralympics will lead to the further expansion of the epidemic, 40.3% think that the Olympic Games should be held in an empty venue, and 30.8% think that it should be cancelled.

　　Tokyo citizens:As a resident, I am worried that the city may become crowded and Covid-19 will spread further.

　　Regarding the situation of epidemic prevention and control, Indian immunologist Barr stressed that no matter what kind of Covid-19 is targeted at, "vaccination will always put you in a better position to fight infection".

Cover journalist Huang Yong

Han surname (13) | Han E, a famous folk singer in the pre-Qin period, told her story in three days with the idiom lingering.

During the Han Dynasty, the two counties named Yingchuan County and Nanyang County gradually formed. At the same time, Han people spread widely and moved to Jiangsu, Zhejiang, Sichuan, Shandong, Gansu, Hebei, Beijing and some areas in the north.

At the end of the Qin Dynasty and the beginning of the Han Dynasty, people surnamed Han were very dazzling on the historical stage, and even decided the direction of history. Among them, three Han Xin have their own wonderful stories.

Let’s talk about the first Han Xin. It is said that he was the last king of South Korea, Han An, one of the Seven Heroes of the Warring States Period, who was a descendant of Wang An.

After the demise of Korea, Han Wang ‘an was moved to Yingchen, the former capital of Chu.

As we mentioned earlier, Wang An-han is also a backward king. When he took over the South Korean landscape from his father Han Huanhui and Wang Hanran, this landscape was no longer in its heyday, but was in a declining state.

More importantly, Han Wang also inherited the incompetence of his parents.

During Han Zhaohou’s reign, South Korea was also weak and often beaten, but he reused Shen Buhai as a prime minister, and made it strong through political reform, which made South Korea become strong soon, stubbornly standing among the predatory vassal states, and became one of the seven heroes of the Warring States.

If Han Wang ‘an had a little ability, although he inherited a mess full of holes, but he managed it carefully and worked hard, South Korea would not have become the first country among the six males to be eaten by Qin.

If Han Wang-an can see clearly the international situation at that time, understand Qiang Qin’s hegemonic position and follow Qin wholeheartedly, maybe South Korea can survive for some time.

However, these are all assumptions, and history will not have assumptions and will not come again.

After Qin destroyed South Korea, it was more tolerant of Han Wang, who did not make much fierce resistance. After all, Han Wang surrendered voluntarily when he was cornered.

Therefore, Ying Zheng, the king of Qin, did not kill Han Wang, nor did he move him to a remote area far away from the Central Plains, but moved him to Yingchen (once the capital of Chu) not far from South Korea, leaving room for moderation.

In doing so, Ying Zheng aims to let Han Wang-an leave South Korea, cut off the connection between him and Koreans, and guard against possible accidents.

But what Ying Zheng didn’t expect was that Ying Chen had been a hot spot against Qin since he was captured by Qin Jun. Not only did the old people of Chu rebel constantly, but also anti-Qin fugitives from all over the world gathered here. Zhang Liang, for example, once came here to secretly engage in anti-Qin activities after his demise in South Korea.

Historically, after any country is destroyed, there will be unwilling adherents who continue to engage in resistance activities, and Korean adherents are no exception. Their desire to resist Qin and revive South Korea has not died out and they have never stopped underground resistance.

Han Wang ‘an was moved to Yingchen by Ying Zheng, which became the fuse of Korean anti-Qin activities from underground to ground, from concealment to publicity.

An anti-Qin rebellion broke out in South Korea, and Han Wang was implicated and died.

Shortly after Han Wang ‘an was moved to Yingchen, in 226 BC, a large-scale anti-Qin rebellion broke out in Xinzheng, the former capital of South Korea’s old aristocracy.

For this rebellion, the historical records are unknown, and it is difficult to know its detailed process.

But we can infer that the purpose of resistance is to revive South Korea. In this case, there must be a reason to advocate and call on everyone to rise up against Qin, otherwise everyone will listen to you when you say you are against Qin. You have to give a specific reason first.

This reason must be visible, tangible and possible. The biggest possibility is to call on everyone to rise up against Qin in the name of Han Wang’ an.

Therefore, this rebellion, not only played the name of Han Wang’ an, but also had a plan to "rob the prison", that is, to save Han Wang’ an from Xi Chen and lead everyone to fight against Qin together.

Only such a national salvation route and plan can make people believe that the resistance is reliable, hopeful and hopeful.

Of course, the final result was that the resistance failed, and Qin Jun suppressed the uprising.

As for the ending of Han Wang ‘an, relevant historical materials say that Han Wang ‘an died shortly after this rebellion.

It is worth noting that there is no historical data showing that Han Wang was executed or died of rebellion.

Then, why did Han Wang ‘an die soon after the failure of the Korean rebellion? It is obviously a bit illogical to say that his death has nothing to do with the resistance.

If Ying Zheng wanted to let Wang An die, he should have been killed after the demise of South Korea, so as not to bother to move Wang An to Xi Chen and put him under house arrest, and to send heavily guarded.

Therefore, it is most likely that after Ying Zheng suppressed the Korean rebellion, after investigation, he found evidence that Han Wang was involved in this rebellion.

In order to put an end to future troubles, cut off the rebels’ hope of using Han Wang-an to restore the country, and with Ying Zheng’s temper, simply let Han Wang-an die, cut off this influential "flag", get rid of it once and for all, and end up quiet.

From this point of view, the death of Han Wang ‘an should be caused by the involvement of South Korean resistance activities.

Of course, there is another possibility, that is, Han Wang did participate in the planning behind the rebellion, and was later involved in the rebellion and killed in it.

In the early Western Han Dynasty, Han Xin participated in the establishment of achievements in quelling the rebellion between Zhu and Lu.

How many sons does Han Wang An have? There is no detailed record in historical materials. But this Han Xin in the early Han Dynasty is said to be the descendant of Han Yun, the second son of Han Wang.

Han Yunsheng Han Long, Han Longsheng Han Zhi, and Han Zhi gave birth to Han Xin.

In the 4th year of Emperor Hui of the Western Han Dynasty (191 BC), Han Xin was recommended as Xiao Lian and entered the official career.

In 195 BC, Liu Bang died, Prince Liu Ying ascended the throne as Emperor Hui of Han Dynasty, and Empress Dowager Lv Zhi began to monopolize power.

In August 188 BC, Emperor Hui of the Han Dynasty died of depression. Lv Zhi made Liu Gong, the eldest son and prince of Liu Ying, the emperor, and became the first person in the dictatorship of Empress China.

In order to strengthen her rule, Lv Zhi constantly cracked down on Liu’s princes and ministers who opposed her, and sealed her maiden family’s consorts with Lu’s surname, and successively made more than 10 Lu’s family kings and princes, which was called "Zhu Lu" in history.

In August 180 BC, Lv Zhi died of illness. The struggle for power broke out between the consorts group of Lu and the royal group of Liu, and the founding heroes Chen Ping and zhou bo responded, and the kings of Liu rose up and killed Zhu Lu. In the end, the Liu family group won.

Lu Jia and Chen Ping conspired against Zhu Lu. (according to the comic book)

In quelling the rebellion of Zhu-Lv, Han Xin also participated in it, made great achievements, and was appointed as County Yin. During the reign of Emperor Wen of Han Dynasty, Han Xin was made a captain for riding cars, and later he was promoted to the position of Governor of Hejiang County.

According to legend, this descendant of Han Xin changed his surname to He in order to avoid disaster because Han Xin offended the powerful people in the DPRK when he was an official.

Many researchers have expressed doubts about this statement, which is not shown here for the time being.

[Next attention]

Han surname (15) | Han Xin, the marquis of Huaiyin, was wiped out after his death. Did he have any descendants to survive?

　　BEIJING, Shennongjia, October 25 (Luo Yongbin, Peng Linpeng) On the night of October 24, adult giant pandas "Olympic Games" and "Yunyun" arrived safely in Shennongjia, Hubei Province. This is considered to be the return of giant pandas to Shennongjia after more than 100 years, marking a key step in public education and scientific research of giant pandas in Shennongjia.

　　At 11: 00 a.m. on the same day, two giant pandas, escorted by shennongjia national nature reserve and the staff of China Giant Panda Protection and Research Center, set off from Qingchengshan Base in Dujiangyan, flew to Yichang Airport in Hubei via Chengdu, and then arrived at their "new home" in Guanmenshan, shennongjia national nature reserve by land that night. Routine inspection of the entourage showed that the two giant pandas were in good health and stable mood after arriving at home, and soon began to taste new food — — Fargesia shennong.

　　The two giant pandas who returned to their hometown Shennongjia this time were born in 2008, in their prime of life, healthy and lively, and they are about to start a new life in Shennongjia.

　　In 2015, in order to enrich and expand the field of natural science research in Shennongjia, the Party Committee and Government of Shennongjia Forest Region drew up a plan to implement the national treasure panda public education project in shennongjia national nature reserve, which was supported by the State Forestry Administration.

　　In recent years, according to the procedures and requirements of the public education and scientific research project on giant pandas, Shennongjia Forest Area has organized many batches of experts to carry out a large number of investigations, studies and demonstrations, initiated and implemented administrative examination and approval, venue construction, food sources, technology and financial guarantee, and finally decided to implement the panda arrival plan in late October.

　　The China International Conference on the Protection of Giant Pandas held from 19th to 21st of this month clearly stated that giant pandas are the common property of human beings and are still in an endangered state. All parties will make joint efforts to carry out in-depth cooperation in in-situ conservation, ex-situ conservation and public education of giant pandas. The implementation of public education and scientific research on giant pandas in Shennongjia is of great significance to enhance the public’s awareness and cognition of panda protection, effectively improve the protection and research ability of rare wild animals in Shennongjia, and carry out research on the food source and living environment of giant pandas in Shennongjia.

　　Shennongjia is the first "Triple Crown" heritage site in China, and its biodiversity has been widely recognized all over the world.

　　In September this year, the China Giant Panda Protection Research Center organized experts to inspect Shennongjia. In the assessment, it was pointed out that the ecological characteristics of Shennongjia and Sichuan Wolong Nature Reserve were very similar, and the climate and temperature, bamboo source types and quantities, and forest canopy were all in line with the living environment of giant pandas. At the same time, Shennongjia forest region has strong strength and fruitful achievements in the field of golden monkey protection and research, which can provide strong scientific and technological support and personnel support for the protection and development of giant pandas in the future.

　　It is understood that the newly-built Shennongjia Giant Panda Pavilion covers an area of more than 7,000 square meters, with a construction area of more than 1,700 square meters. Its natural environment and supporting research facilities can effectively meet the comfort and safety standards of giant pandas, and also meet the conditions for public display and scientific research.

　　Historical data show that Shennongjia was once a paradise for giant pandas, and the indirect influence of natural environment changes and human activities led to the disappearance of giant pandas in this area. It is of great significance and great responsibility for Shennongjia to welcome back the giant panda and carry out public education and scientific research. In order to achieve this goal at an early date, shennongjia national nature reserve has made careful, meticulous and meticulous preparations in environmental conditions, daily management, staffing, food source supply, disease prevention and control, etc.

　　According to the personage of Shennongjia Nature Reserve, the "Olympic Games" and "Yunyun" have a long-distance transportation, and there is still a process of adaptation to the new environment. Shennongjia Nature Reserve will cooperate with the technicians of China Giant Panda Protection and Research Center, take care of them, and make them better adapt to their "new home" as soon as possible. After quarantine, they will be visited by friendly humans.

　　Wen _ Dianbingtang

　　It is said that at the end of World War II, the German Third Reich, which was violently attacked by the East and West lines of the Allies, came to an end in the rumble of guns.

　　Driven by madness and despair, German scientists put all their eggs in one basket and put forward a large number of new weapon designs, such as the "Giant Mouse" super heavy tank weighing more than 1,000 tons and the "Silver Bird" space plane with a range of 20,000 kilometers. These weapons, which are divorced from rationality and common sense, are jokingly called "Nazi black technology" by future military enthusiasts.

　　Among them, there is a "black technology" with the strongest power and the largest amount of work-and it is also the most impossible to achieve. This is the protagonist of this article: the solar cannon.

　　The fantasy of the solar cannon originated in 1929. In this year, hermann oberth, a famous German rocket scientist, accidentally opened a shocking brain hole in the process of daily research: launching a huge reflector with a diameter of 100 meters into space, which can reflect sunlight to the earth at night. In this way, ordinary crops can enjoy the sunshine 24 hours a day, and the growth rate can be greatly accelerated, thus rapidly increasing the grain output of the fields. In addition, large cities can also get enough light, thus saving a lot of electricity consumed in the lighting system.

　　Oberth recalled: "The sun mirror I imagined is like a naughty student reflecting on the ceiling of the classroom with a mirror. If this light shines across the teacher’s face, it will probably cause him unhappiness. And I am a school teacher who has collected enough data to make this mirror. "

　　With the outbreak of World War II, oberth and his favorite pupil, the famous German rocket scientist Werner wernher von braun, were recruited into the German rocket research and development department to develop the famous V-2 rocket for the army. In the process, oberth revealed the idea of this orbital solar reflector to the German army. After understanding the specific working principle, the German army organized a group of experts to improve oberth’s ideas. In the end, the orbital solar reflector originally conceived for peaceful use was transformed into the doomsday weapon plan of the German army: the solar cannon!

　　In fact, reflecting sunlight as a weapon is not a brand-new design. As early as more than two thousand years ago, there was a legend in Greece that Archimedes used a reflector to focus sunlight and burn the invading Roman fleet. However, the Nazis magnified the power of this concept to an unprecedented order of magnitude this time. According to the German vision, as long as a giant concave mirror is launched into space and enough sunlight is gathered, it can produce an ultra-high temperature that no defense facility can resist, burn enemy warships on the ground and even destroy enemy cities!

　　At that time, it seemed that the idea of solar cannon as an orbital weapon was undoubtedly very advanced. Once it is realized, it is definitely conan the destroyer’s big killer. However, the rocket technology of World War II is still in its infancy. Nazi Germany consumed a lot of resources and only developed a V-2 ballistic missile with a bomb load of 1 ton. It is undoubtedly an idiotic dream to use it to launch solar cannons that must be deployed in high-altitude space orbit. After the war, oberth and Braun were captured by American troops together. During the interrogation, oberth poured beans out of the bamboo tube and gave the details of the solar gun plan to the American interrogators in detail.

　　When the news reached Life magazine in the United States, the olfactory-sensitive editor was immediately attracted by the theme "The Nazis tried to scorch the earth with a sun mirror". They started at full speed at once. In July 1945, when the Second World War was not completely over, Life magazine made this amazing secret weapon of Nazi Germany public.

　　According to Life magazine, Nazi Germany’s solar cannon is an unprecedented giant weapon and the largest artificial object ever designed by human beings. In order to focus enough sunlight and cause devastating killing effect, this weapon will be suspended in a space orbit with a height of 8,200 kilometers, with a reflector area of over 9 square kilometers and a weight of one million tons. Once completed, it will be more than 100,000 times more powerful than Archimedes’ mirror, and it can easily destroy any big city, which can be called killing people and killing Buddha!

　　According to the idea of Nazi scientists, the work of building a space station began with the launch of an unmanned rocket. When the rocket enters the 8200-kilometer-high orbit, it will unfold six long metal cables, which are only about 0.5-1.5 inches in diameter, and will be deployed in place by themselves under the rotation of the rocket as the starting skeleton of the solar cannon project.

　　Next, the subsequent rocket will transport a pair of sunglasses components from the earth to space. These sunglasses components are essentially hollow metal frames made of sodium. On the earth, high-purity metallic sodium will be rapidly oxidized and lose its luster. However, there is no such problem in space. Sodium metal has good reflection effect and low density, and it is an ideal raw material for sunglasses in the eyes of Germans. Along the skeleton, the sunglasses components are pieced together one by one, and the installation angles are slightly different from each other. Finally, a huge concave mirror can be assembled, and the solar cannon is finished.

　　After the solar cannon is completed, this huge mirror will leave a round hole with a diameter of 30 feet wide as a connecting channel. The cargo rocket launched from the earth will be inserted into this round hole in a seamless way to transport building materials and supplies for the solar cannon. In fact, as long as we compare the modern space station, we can find that the German design was too complicated. As long as the operation is a little careless, the launch vehicle is likely to cause irreparable damage to the docking channel, which will directly affect the safety of the solar cannon. However, in the 1940s, it was not easy for German scientists to have such a design.

　　The solar cannon is actually a giant space station, which needs to accommodate a large number of people for daily maintenance. To this end, German scientists deliberately launched various designs.

　　First of all, the energy problem of solar cannons should be solved. In this space station with an area of 9 square kilometers and a weight of millions of tons, the operation of any equipment needs the promotion of energy. Where does the energy come from? The reader’s first reaction may be to directly convert sunlight into electric energy. However, in the 1940s, the technology of solar cells was still far from mature, so the Germans chose the principle of steam turbine-placing a transparent totally enclosed water tank on the outside of sunglasses, using sunlight to heat water, generating high-temperature and high-pressure steam, driving the turbine to drive the generator, and then transporting the cooled water back to the water tank, thus generating a steady stream of electric energy.

　　Secondly, in the 8200-kilometer-high orbit, the interior of the space station is almost weightless. In order to make workers move relatively freely, scientists have designed special "space shoes", with magnets installed on the soles, which can be stably adsorbed on the metal floor to create an environment similar to the ground.

　　However, the next question is quite important. Living in space, where does the oxygen that workers breathe come from? How to get food?

　　The German solution made future generations feel incredible-pumpkin!

　　From the perspective of Nazi scientists, pumpkins can effectively consume carbon dioxide exhaled by workers and provide sufficient oxygen, and more importantly, pumpkins are nutritious and healthy food. As for eating pumpkins all day, will it lead to a decline in staff morale? Germans don’t seem to think too much. Maybe in their view, this is a problem that can be solved by preparing more spices. As a result, thousands of hydroponic farms were placed inside the space station, all of which were used to grow pumpkins. It is worth mentioning that these pumpkins can’t be directly exposed to sunlight, because there is a lack of air in outer space, which can’t filter out some cosmic rays that are unfavorable to plant growth. Therefore, some of the electric energy output by the generator of the space station is used for fluorescent lamps instead of sunlight to illuminate pumpkins and help them carry out photosynthesis.

　　After providing a suitable living environment, the next step is the control of the solar cannon. How to aim at a target and focus sunlight on a point is a very challenging job. Behind the mirror with an area of 9 square kilometers, there are many miniature rocket engines. By adjusting the thrust of the engine, the staff can push the solar cannon to rotate slowly. What needs to be explained here is that even with the back to the sun, the other side of the mirror is polished to minimize the solar radiation.

　　In addition to marveling at the huge amount of work, Life magazine thinks that the height of solar cannons is low, and the best deployment position should be geosynchronous orbit 36,000 kilometers away from the earth. Here, the solar cannon can keep relatively static with the earth, and the staff have enough time to adjust the angle of the mirror and aim at the target on the earth. In addition, American calculations show that the diameter of the spot reflected by the solar cannon to the earth may be 40 miles, which means that the focusing effect is not enough to produce any destructive power.

　　For this, oberth did not agree. "This beam is really not hotter than the sun on the equator, but if the diameter of the mirror is doubled, the irradiation intensity will be four times, and the temperature of the beam irradiated on the ground will be as high as 200 degrees. This beam may not be able to directly burn the city or blow up the battleship, but it can definitely cook the humans on the ground! "

　　When the war ended, oberth devoted himself to the study of UFO phenomenon, and firmly believed that human beings would one day be able to build the solar reflector he envisioned and put it into peaceful use. On December 28th, 1989, when the Iron Curtain of the Cold War was about to fall, oberth died quietly. At this time, his dream-the goal of making a sun mirror in earth orbit-has still not been realized.

　　What oberth didn’t know was that after the war, at the other end of the Iron Curtain, a Soviet rocket scientist was trying to realize his ideal.

　　In the late 1980s, Vladimir Sergevich Syromyatnikov (hereinafter referred to as Tennikov), a famous Soviet space scientist and inventor of the docking mechanism of Soviet/International Space Station spacecraft, came up with a solar reflector scheme to solve the lighting problem in the polar regions of the Soviet Union at midnight. Although the solar reflector he designed was not as crazy as the Nazi German solar cannon, it was enough to provide a full moon-like lighting effect for the area 5 kilometers above Fiona Fang. According to Tennikov’s idea, this design can completely ensure night lighting, making street lamps and flashlights a decoration.

　　Soon after, the powerful red empire collapsed, but Tennikov’s solar mirror plan was unexpectedly unaffected. On October 27th, 1992, the cargo ship "Progress M-15" was successfully launched with the solar reflector "Flag 2" designed by Tennikov. After completing the replenishment mission for the Mir space station, Progress M-15 left the Mir space station on February 4, 1993, and then launched a 20-meter-wide "Flag 2" solar reflector in orbit near the space station to carry out preliminary theoretical experiments. This experiment was quite successful. The "Flag 2" solar reflector successfully illuminated a 5-kilometer-wide area, and the brightness was almost comparable to that of the full moon! In the end, this solar mirror followed the "Progress M-15" into the atmosphere and burned out.

　　Tennikov was greatly encouraged and designed "Flag 2.5" again. According to his prediction, this 25-meter-wide improved solar reflector can produce brightness equal to 5-10 full moons when it is started, illuminating a circular area with a diameter of 7 kilometers. Unfortunately, after the launch, an accident occurred during the deployment of the "Flag 2.5" solar reflector. At that time, a lens was caught in the communication antenna of Mir space station, and the strong communication antenna quickly tore the lens, causing the sunglasses to lose control. In the end, this attempt failed, and this solar mirror, together with the cargo ship "Progress", was burned when it re-entered the atmosphere. Tennikov’s solar mirror plan was cancelled by the Russian Space Agency, which had poor financial resources, because of its high cost.

　　However, Tennikov didn’t give up easily. He went around trying to find new investors, hoping to carry on his solar mirror plan. In order to raise funds, Tennikov almost devoted his efforts to this project. Unfortunately, until his death in 2006, Tennikov had not raised enough funds to continue his "Flag" project.

　　Throughout the development of solar cannons, we can see that there are three obvious shortcomings that limit the development of this equipment.

　　First of all, the cost of building a solar cannon is amazing! According to oberth’s original idea, his solar cannon would cost $3 billion-an astronomical sum at that time. Even the Manhattan Project of the United States to develop nuclear weapons at the same time cost only $2 billion! Compared with the atomic bomb that can instantly destroy a big city, oberth’s solar cannons cost a lot, but even people on the ground are hard to kill, which is obviously not worth it.

　　At the same time, to build a huge solar cannon in space orbit, its engineering quantity and assembly difficulty are very amazing. Although oberth once imagined that this million-ton solar cannon could be built in 15-20 years. But until today, the most Ushizo object assembled by human beings in Earth orbit is only the "International Space Station" with a total weight of 500 tons-this is the result of the cooperation of dozens of countries, including the United States and Russia, in 20 years! Moreover, compared with the international space station built by docking module, the engineering complexity of the solar cannon is several times more difficult: because each mirror must be accurately installed in place, the workers responsible for assembling the solar cannon must wear heavy spacesuits and manipulate wrench tools to install the mirrors one by one, which is difficult for ordinary people to imagine. Even by the time standard of building the International Space Station, it takes at least a dozen generations of efforts and hundreds of years to complete a solar cannon with a weight of one million tons!

　　In addition, the vulnerability of solar cannons is also a problem that people must consider. Although solar cannons in orbit can intercept incoming anti-satellite missiles by reflecting sunlight. However, in wartime, the enemy is likely to use a large number of missiles to launch a saturation attack on this orbital mirror. As long as one missile breaks through the interception line and hits the solar cannon, it can destroy a large number of mirrors and make this expensive special weapon a waste. Moreover, even in peacetime, solar cannons face a major threat-space junk that can be seen everywhere in space orbit. Because of its huge size, the solar cannon has become an excellent target for space junk flying at high speed. As long as space junk destroys one of the mirrors, the effect of the whole solar gun system will be greatly reduced.

　　Although the practical application of solar cannons has encountered many difficulties, this does not mean that no one will carry forward the concept of orbital reflector. On March 23, 1983, President Ronald Reagan announced the strategic defense plan of the United States-the famous "Star Wars" plan. In this ambitious plan, the US military also used an orbital light reflector. However, the light source of these light reflectors is no longer ordinary sunlight, but high-energy laser emitted from the ground! According to the U.S. military’s vision, this weapon can directly reflect the high-energy laser beam emitted by the ground excimer laser transmitter and destroy the enemy ballistic missiles that are on the rise. Once a nuclear war breaks out, the United States can use this weapon to quickly destroy the incoming Soviet ballistic missiles, and then launch a retaliatory nuclear strike without worrying that the nuclear bomb will fall on its own head.

　　Of course, such a powerful weapon still needs to pay a price. Because the laser beam must penetrate the atmosphere, and then be transmitted to the attacking satellite through the relay satellite and then refracted to the target, the laser transmitter on the ground must be very powerful to be competent for this work. In order to achieve this goal, Americans put a lot of money into the development of ground lasers. Until the "Star Wars" project was cut by President Clinton in 1993, the ground laser station for providing light source was still not developed. In the end, the orbital reflector scheme was abandoned by the US military, and the development experience related to the project was applied to other laser weapon research projects of the US military.

　　Although the solar cannon and its derivative products have not been successful in reality, it does not mean that it cannot be a popular weapon in various cartoons, games and movies. In the story of the classic sci-fi cartoon "mobile suit 0079", Ji Wengjun owns a solar shaped gun transformed from a colonial satellite. In the subsequent development of the plot, this solar cannon directly swept the fleet of the Union Army and destroyed one-third of the main ships of the other side. This led to a forced attack by the Union Army of the Earth, which destroyed this threatening solar shaped charge gun. However, this solar energy gathering gun provides energy through the surrounding solar panels, which is essentially different from the working principle of the solar energy gun envisioned by oberth.

　　Besides appearing in the mobile suit series, Sun Cannon also appeared in the Resident Evil series of games. In the plot background of the game Resident Evil: Revelation, a maritime city in the Mediterranean Sea, Tra Griga, collects sunlight through an orbiting solar reflector to provide sufficient solar energy for lighting. When the "Hound" organization launched a biochemical terrorist attack in the city, which turned the whole city into a hell full of monsters, the top management of the Federal Bioterrorism Committee decided to turn the solar reflector into a solar cannon and emit a high-energy beam to completely destroy the city. As Terra Griga was completely reduced to ashes by high-energy beams, the story of the game-Floating Island Panic came to an end.

　　However, the most original work of oberth’s solar cannon design is the last 007 film "Die Another Day" starring pierce brosnan. In this movie, James Bond’s enemies have a solar cannon in orbit exactly as oberth imagined. In the film, this solar cannon destroyed the rocket car driven by Bond, the huge ice sculpture building, the missiles that attacked the solar cannon, and even the transport plane that the villain was riding! Perhaps the director of the film wants to pay tribute to oberth, the visionary of the orbital solar reflector. When the villain in the film announced the existence of the solar gun, he deliberately advocated that the orbital gun was only used for "civil lighting".

　　Although oberth’s idea of a solar cannon, and the idea of an orbital reflector derived from it, has not yet come true. However, his solar cannon is still active in many sci-fi works and is regarded as a classic sci-fi technology setting, which makes people feel very gratified. With the continuous development of space science and technology, maybe in the near future, someone will follow oberth’s legacy, solve the technical problems that limit the development of solar cannons, and finally develop an orbital reflector for the peaceful use of solar energy for the benefit of mankind!

　　Xinhua News Agency, London, August 31 (Reporter Gui Tao) On August 31, several British cities held demonstrations to protest against Prime Minister Boris Johnson’s adjournment of Parliament.

　　On the same day, tens of thousands of people marched in London, Manchester, Oxford, Liverpool, Leeds and Belfast, the capital of Northern Ireland. They shouted slogans and accused the Johnson administration of despising democracy and deliberately pursuing "no agreement to leave the European Union". There are both "Brexit" supporters and "Stay in Europe" supporters in the marchers.

　　The British Parliament, which is currently in summer recess, will resume on September 3rd. Johnson asked the parliament to adjourn again from September 9 to September 12, and the adjournment lasted until October 14. Queen Elizabeth II recently approved this request.

　　Critics believe that the deadline for Brexit on October 31 is approaching. If Parliament adjourns again, there will be only two weeks left for Members to exercise their rights on the issue of Brexit. Johnson’s request to adjourn the parliament again is to stop the members’ efforts to oppose "no agreement to leave the European Union". However, Johnson insisted that there was enough time for parliamentarians to discuss the issue of "Brexit".

　　The winter moon has arrived, and it is near the end of the year. The real estate market in 2021 was ups and downs.

　　In the first half of the year, real estate development loans, sales area and sales performance were very active, and house prices rose steadily in some cities. The turning point appeared in the middle of the year, and the financial regulation and control policies such as the "three-line and four-file" housing enterprise financing management rules and the loan concentration management of banking financial institutions gradually took effect, especially after the liquidity risk of individual large housing enterprises appeared as the "fuse", the market obviously cooled down in the second half of the year. With the sharp decline of the market, the virtuous circle of the real estate industry has been broken to some extent.

　　The Central Economic Work Conference held a few days ago proposed that the city should promote the virtuous circle and healthy development of the real estate industry, and made clear the focus of the current and future development of the real estate market. At present, the debt problem of some real estate enterprises is more prominent, and real estate sales, investment and land transfer all show signs of slowing down. In some cities, there is a wait-and-see mood of falling house prices and buying houses. Especially for areas with high industrial dependence, once the real estate market slows down excessively, it may trigger a more complicated risk transmission chain.

　　Real estate has a large scale, a long chain and a wide range of aspects, which accounts for a fairly high share in the national economy, fixed assets investment of the whole society, local fiscal revenue and total loans of financial institutions, and has an important systematic impact on economic and financial stability and risk prevention.

　　How to realize the virtuous circle and healthy development of real estate industry? Stable expectation is an important prerequisite. The Central Economic Work Conference proposed to strengthen the expected guidance. Many people are not optimistic about the future development of the industry due to the debt crisis of individual housing enterprises and the downward pressure on the real estate market. In fact, although there are serious debt problems in individual real estate enterprises at present, it is still a case, because the enterprises themselves are not well managed, and their influence need not be exaggerated. The overall healthy development trend of China’s real estate market will not change, and the risks of individual enterprises will not affect the normal financing function of the medium and long-term real estate market.

　　At the same time, the reasonable housing needs of buyers are being met. The Central Economic Work Conference proposed that it will support the commercial housing market to better meet the reasonable housing needs of buyers. According to the data released by the central bank on December 13th, the balance of individual housing loans was 38.1 trillion yuan at the end of November, an increase of 401.3 billion yuan in that month, an increase of 53.2 billion yuan over that in October. The recent increase in the balance of personal housing loans is conducive to better meeting the mortgage demand of the first and improved housing.

　　On the basis of stable expectations, the supply and demand blocking point is expected to break through, and a virtuous circle of the real estate industry is expected. The cooling of the real estate market is easy to be transmitted to other links. When the transaction volume of second-hand houses decreases and fewer buyers buy new ones, the new house market may be neglected, while the sales of the new house market directly affect the payment of enterprises. Once the funds are insufficient, it will reduce the enthusiasm of enterprises to take land, and then the cooling will be transmitted to the land market. It can be seen that one link is stagnant and it is easy for the whole market to "turn". To achieve a virtuous circle and healthy development of the real estate industry, efforts should be made to control the liquidity risk of housing enterprises and avoid the transmission of local risks to the whole system. At the same time, it is necessary to smooth all links in the chain of "financing, land acquisition, sales, loans and payment". The improvement of the financing of housing enterprises and the credit environment of buyers will help the real estate industry to further realize a virtuous circle.

　　To achieve a virtuous circle and healthy development of the real estate industry, enterprises need to constantly explore new development models. The development model of high leverage, high debt and high turnover in the real estate industry in the past 20 years has been unsustainable; On the whole, China will gradually transition from incremental development of large-scale demolition and construction to stock transformation; From the perspective of housing supply, from the past, we paid more attention to buying and renting, and changed to renting and buying at the same time. All these decide that real estate enterprises should adapt to the changes and explore new development models.

　　In the process of solving the housing problem, housing leasing will play an increasingly important role. The Central Economic Work Conference proposed that we should adhere to both rent and purchase and accelerate the development of the long-term rental market. Specialized and large-scale housing leasing enterprises are an important carrier to improve professional services in the leasing market. Factors such as high cost and narrow profit space in leasing industry hinder the specialization and scale development of enterprises. Statistics show that the institutionalization rate of housing leasing in first-tier cities in China is less than 15%. Therefore, to speed up the development of the long-term rental market, we should speed up the cultivation of specialized and large-scale housing rental enterprises.

　　To realize that all people have a place to live, housing security cannot be absent. The Central Economic Work Conference proposed to promote the construction of affordable housing. China’s housing security system has completed the top-level design, including public rental housing, affordable rental housing and shared property housing. Among them, affordable rental housing, which focuses on solving the outstanding housing problems in big cities and alleviating the housing difficulties of new citizens and young people, will become the top priority of affordable housing in the new development stage.

　　The central economic work conference once again stressed that "housing is not speculation", indicating that the bottom line cannot be broken. To promote the virtuous circle and healthy development of the real estate industry, we should take "keeping the word steady, striving for progress while maintaining stability" and "trying to smooth the national economic cycle" as the starting point, instead of having the mentality of stimulating and speculating on real estate. (This article Source: Economic Daily Author: Kang Shu)

These days, the male host of CCTV earned enough space, and even a host resigned on the Internet. But don’t worry, there is no one else to watch. If you really want to talk about CCTV anchors, these high-value new generation beauties must not be missed!

1. Li Sisi used to be the beauty of Peking University.

Li Sisi, born in 1986, is a representative of the new generation Hua Dan of CCTV. In 2012, she acted as the host of the the Year of the Loong Spring Festival Gala, becoming the youngest host on the stage of the Spring Festival Gala. Before being the host, Li Sisi actually stepped into the entertainment circle very early. When she was 9 years old, she filmed the MV of Dong Wenhua’s "The Ballad of the Great Wall". When she grew up, she was admitted to Peking University, and she was named "the flower of Peking University". In 2005, she became the only female champion who served for 8 issues in Challenge Host, and has since entered the stage of CCTV.

The stage is temperament type.

Under the stage is-Meng Meng Da!

Life photos of Li Sisi

2. Yang Mingming became the "Central 5 Goddess" during her internship.

Unlike other female anchors, Yang Mingming, born in 1992, was a hit during her internship.
Red. In 2012, Yang Mingming entered the CCTV Sports Program Center as the first batch of interns. At that time, she appeared in the Midnight Sports Report. Her sweet appearance instantly became popular on the Internet, and some netizens stayed up all night to watch new movies for her.
Smell. Because of her outstanding performance during her internship, Yang Mingming stayed at CCTV after graduation, and now she has become the host of CCTV’s "Feast of the Giants".

Life photos of Yang Mingming

3. Tu Jingwei and Xiaosa used to be golden couple.

Tu Jingwei, born in 1980, is the head of the film channel Hua Dan. As the host of "China Film Report" and "Premiere", she is sensitive in the program, not only active on the screen, but also frequently appearing in major film festivals. Outside of work, the relationship between Jingwei and Sa Beining is also widely known. In 2006, they hosted the Changchun Film Festival and sparked off a spark. They were regarded as the "golden couple" of CCTV, but this relationship ended in 2009.

Tu Jingwei

4. Lei Zhang was once called the successor of Dong Qing.

Like Li Sisi, Lei Zhang became famous on the stage of Challenge Host. In 2006, she stood out from more than 11,000 contestants and was announced to join CCTV on the spot. Later, Zhang Lei was the host of Happy China and Happy Hero. With her dignified and generous hosting style and sweet appearance, she was regarded as the successor of Dong Qing. However, in the rising period of her career, she retired, married an iron ore tycoon in 2013, and did not return to CCTV until March 18, 2014, and then served as the host of Variety Festival.

High-end atmospheric portrait, beautiful ~

Professional modeling ~

5. Mi Li once appeared in the movie "The Thorn Tomb".

Mi Li, born in 1986, is currently the host of China Film Report, The Sound of Music and last romance on CCTV film channel. With a pure image, she is not only the beauty queen of China Communication University, but also a famous talented woman. Now she is studying for Dr. Peking University, and she is more proficient in both Chinese and English. With a good appearance, she has also crossed the border many times. She once made a guest appearance as a pork girl in the movie "Thorn Mausoleum" and even appeared in the short film "Charm Sound" with friendship.

Mi Li and Chen Daoming took a group photo at the shooting scene of "Thorn Mausoleum"

Normal work clothes are like this ~

Mi Li visited the barracks.

six.Rachel became popular because of the title of "Squire Liu"

1986
Rachel, born in, is the anchor of CCTV’s "NBA Frontline". With her sweet appearance, she is deeply loved by male fans with her natural girl-next-door temperament and is called the most beautiful sports female anchor in CCTV history. However, she
There is also a louder nickname-"Squire Liu". It turned out that during the World Cup in Brazil, which team rachel wore was out, and her strong ability of "reverse prediction" made her an instant hit on the Internet.

rachel

7. Qin Fang was once the top three in the beauty contest.

On July 26th, 2011, Qin Fang, the anchor of CCTV, choked to broadcast the rear-end collision of a bullet train after introducing Yi Yi’s situation in the program, which attracted the attention of netizens. Qin Fang, who hosted International News and Weather Information, was named one of the top ten beauty anchors of CCTV earlier because of her elegant temperament. With a delicate appearance, she has participated in many beauty contests, not only being among the top three beautiful girls in Chongqing, but also winning the title of Chongqing Division of the New Silk Road Model Contest. In addition, Qin Fang was the top student in the college entrance examination. She was admitted to Communication University of China as the top student in Chongqing Arts.

Anchor platform

Qin Fang photo

Life photo

8. Hu Die

Hu Die was born in Hanzhong, Shaanxi Province on February 16th, 1983. In June, 2005, Hu Die graduated with the first grade in comprehensive assessment, gave up the insurance research and entered Beijing TV Station, and embarked on the road of news broadcasting. In July 2009, he began to host the news program "Chao Wen Tian Xia", which was broadcast live by CCTV-1 and CCTV- News. Won the "2010 Famous Host" of CCTV. It was only recently exposed that Lu Chuan was certified.

Hu Die

9. Ma Fanshu

Ma Fanshu was born in Harbin on November 6th, 1993. On the evening of November 24th, 2014, Ma Fanshu made his first appearance as the host in CCTV’s newly revised Football Under the World. In the program, Fan Fan, who appeared in a green dress, cooperated with Duan Xuan tacitly and showed humor.

ma fan shu

(Observer Network Integrated International Online and other media)