Needle puncture, blood drawing, ozone injection, etc., and then the blood is returned to the body … … Recently, a medical beauty project named "Blood Purification" became popular on social media because of many "Amway" in online celebrity. In online celebrity’s sharing posts, it is frequently mentioned that "blood purification" can resist aging, promote metabolism, regulate immunity and help the body to detoxify. Some merchants even claim that it can treat tumors. But is this really the case?

　　A survey by Beijing Youth Daily reporter found that this project, known as "Beauty Black Technology", has been carried out in medical and beauty institutions and private hospitals in Beijing, Guangdong and Nanjing, with a single charge ranging from 3,000 yuan to 50,000 yuan. According to the description of beauty institutions and private hospitals, "blood purification" is simple, safe and reliable. In this regard, medical experts reminded that the "blood purification" project is not suitable for everyone, not a beauty care project, but an operation. Patients in need should follow the doctor’s advice and receive treatment in regular hospitals. "If you operate in an environment that is not up to standard, there will be risks such as blood infection."

　　In addition, the health departments in Beijing, Guangdong and Nanjing all said that they had not approved the relevant qualifications of the beauty institutions and private hospitals involved in this area to carry out such "blood purification" medical beauty projects, and suggested that consumers should report the relevant situation to the health department in time.

　　raise concerns

　　Medical beauty project "blood purification" became popular.

　　Recently, a "blood purification" project has quickly become popular in the medical and beauty circles, and many online celebrity and beauty bloggers have fancy "Amway" on social platforms. Online celebrity mentioned that she experienced the project in Japan by a friend’s recommendation. The steps were simple: pricking a needle, drawing 100 ml of blood, and then injecting ozone. During this time, online celebrity said that he saw his blood "change from dark red to bright red". Finally, the "purified" blood is returned to the body. Online celebrity said that after "blood purification", "I only slept for five hours every day but I was not sleepy at all". The post also showed photos of her "doing projects".

　　The reporter of Beiqing Daily noticed that there are not a few "Amway posts" about "blood purification" on social platforms. A beauty blogger told the reporter of Beiqing Daily that he had done the project in Ginza, Tokyo. "I have done it three times, and it is not easy to get tired after I finish it." In addition to Japan, South Korea and Thailand, many netizens "Amway" medical and beauty institutions in Guangzhou, Nanjing and even Beijing.

　　Despite being sought after by many beauty lovers, netizens have mixed opinions. Some netizens bluntly said that this is paying an "IQ tax"; There are also medical experts who question that once there are irregularities in the operation process, it is very likely to cause injury or even death.

　　Journalist investigation

　　Be touted as an "anti-aging artifact"

　　An unannounced visit by the reporter of Beiqing Daily found that there are not a few beauty and plastic surgery institutions in China that claim to be able to carry out "blood purification" projects. There are two specific forms: one is the direct operation of the plastic surgery hospital; The other is the beauty salon "matchmaking", which leads the passenger flow to private hospitals, which are charged by the beauty salon, but operated by private hospitals.

　　A staff member of a beauty agency named "Qinxin Yimei" located in Fogang County, Qingyuan City, Guangdong Province said that they are doing a "blood purification therapy" introduced from Germany. "Take out your own blood, then mix and purify the high-concentration and high-dose active oxygen with the blood, and then return your own blood to the body." The staff member said, "Many online celebrity and celebrities in China are doing it here, and they can excrete a lot of toxins from the body." Subsequently, the staff sent a number of videos and photos of customers "doing projects".

　　Asked about the charge, the staff sent a leaflet page, which read "1000 ml of net blood is worth 79800 yuan at a time". However, she said that it is more recommended for reporters to "do cards", saying that the more recharge, the lower the single charge price. "After the discount, the single charge ranges from 10,000 yuan to 50,000 yuan."

　　Coincidentally, when the reporter of Beiqing Daily consulted the anti-aging problem as a consumer, the staff of "Nanjing Mijia DR.CICI Plastic Surgery Hospital" recommended a similar "blood purification" project to the reporter of Beiqing Daily. In the video sent by the other party, a woman in a nurse’s uniform kept shaking with a bottle filled with blood, and a patient waiting for "blood transfusion" was lying next to the woman.

　　Seeing the reporter’s interest, the staff further introduced that the agency’s "blood purification" project is divided into two types: large circulation and small circulation. "The price of large circulation is 50,000 yuan, and the price of small circulation is 3,980 yuan. Great circulation is the whole body blood circulation. Blood is drawn from one arm, purified by the machine, and then returned to the body from the other arm. The small circulation is to pump 100ml of blood, then inject ozone into the blood with a machine, and then return the blood to the body. "

　　Beijing luodian

　　Clients are drained to private hospitals.

　　"Great Cycle" and "Small Cycle" have a new expression in a beauty salon named "Kiss of Flowers" in Chaoyang District, Beijing — — "adsorption column" The staff introduced, "‘ Adsorption column ’ Is added in ‘ Blood purification ’ A link in the process will absorb impurities and precipitates in the blood, which will double the efficacy, but the price is relatively high after addition. " Different from the first two cosmetic and plastic surgery hospitals, the staff of "Kiss of Flowers" said that they did not operate the "blood purification" project, and after signing an agreement with customers, they would take customers to a private hospital named "Ciming ‘ao Sub-health Management Hospital" for specific operations.

　　Subsequently, the reporter of Beiqing Daily consulted Ciming ‘ao Sub-health Management Hospital in beiyuan road, Chaoyang District as a citizen. A "health consultant" of the hospital introduced that "blood purification" is a medical beauty project with "anti-aging effect" in the hospital, and admitted that it has "channel cooperation relationship" with many beauty salons.

　　As for the benefits of "blood purification", the above-mentioned staff sent a paragraph saying that the project can "reduce hyperlipidemia and high cholesterol; Eliminate environmental toxins and metals in the body to prevent the occurrence of cancer; Remove endotoxin from the liver and improve the detoxification function of the liver; Treatment and prevention of complications of diabetes; Repair damaged myocardium and blood vessel wall to prevent cardiovascular and cerebrovascular diseases; Improve male impotence symptoms and sexual function, improve immunity; Improve cell activity, rejuvenate the vitality of the body, and effectively prevent premature aging; Improve the symptoms of numbness and fear of cold in hands and feet, make qi and blood smooth, and improve the gloss and whiteness of skin. "

　　No photo receipt, only "medical examination fee"

　　"We are a regular hospital, and physical examination is our main project. If you are not at ease, you can come and have a look in person. " Aware of the reporter’s concerns, the staff of Ciming ‘ao Sub-health Management Hospital took the initiative to make suggestions.

　　Yesterday morning, a reporter from Beiqing Daily and his party came to this hospital in beiyuan road, Chaoyang District. According to the salesperson, "blood purification" is carried out in the "sub-health conditioning center" inside the hospital. "Customers are all members of the hospital, and there are customers brought by the channel, so there is no need to publicize them."

　　Then, two salespeople took the reporter of Beiqing Daily to a consulting room on the second floor of the physical examination center. A "director" wearing a white coat sat down and began to introduce the benefits of "blood purification" in anti-aging to reporters. Subsequently, the salesperson introduced the price of "blood purification". "Yes ‘ Adsorption column ‘ The big cycle is 50 thousand yuan at a time. The small cycle of pumping out a small amount of blood and injecting ozone is not done alone, but combined with the large cycle. The price is 10 times for a course of treatment, totaling 50,000 yuan. " After the reporter of Beiqing Daily asked "whether it is possible to invoice", the salesperson said, "This is our internal price, and we can’t invoice. Even if it is a receipt, we can only write the medical examination fee."

　　During the consultation, in addition to a director, there are two salespeople, a man and a woman, who always follow the reporters of Beiqing Daily, and are not allowed to take photos casually.

　　Subsequently, the reporter of Beiqing Daily asked if it was possible to "look at the departments doing the project", and the staff replied, "It’s a sterile room, and everyone is doing it in it ‘ Blood purification ’ It is not convenient to see. " After repeated requests, two salespeople led the reporter of Beiqing Daily to visit the general ward, and said, "The ward for blood purification is similar to the general ward, but the bed will be better than this." The reporter of Beiqing Daily saw that the bed in the general ward of the hospital is similar to a single or double bed in a hotel. The staff added, "When doing the project, the hospital ward bed is used, and an instrument for blood purification will be placed next to it."

　　Regarding the treatment risk, the sales staff insisted that it was "absolutely safe" and stressed that they had relevant qualifications approved by the health department. A salesperson said, "This is equivalent to the process of blood collection. This arm is drawn out, and after the circulation of the machine, the left arm enters and exits the right arm, and the (filtered) fresh blood is injected back from the other arm. After you finish, you can see a small tube filled with impurities extracted from your blood. "

　　Expert opinion

　　If the environment is not up to standard, there will be the risk of infection.

　　For the "blood purification" medical beauty project launched by beauty institutions and private hospitals, Dr. Wang, an attending doctor in the rehabilitation department of a 3A hospital in Beijing, told the reporter of Beiqing Daily, "What they said ‘ Blood purification ’ The project should be an auxiliary medical project carried out in regular hospitals, which is mainly suitable for the auxiliary treatment of patients with physical pain, herpes zoster, cardiovascular and cerebrovascular diseases, but not for everyone. ‘ Anti-aging ’ The beauty project. Moreover, this is an operation, and even if it is carried out in a sterile operating room of a regular hospital, there will be a certain risk of infection. "

　　Zhu Chenggang, deputy director of the Cardiovascular Department of Fuwai Hospital, said that the blood purification project recommended by some beauty salons and medical institutions costs tens of thousands of dollars, and the curative effect is fantastic, claiming that it can beauty beauty, and even has a miraculous effect on treating tumors, which should be regarded as selling fear and over-publicizing. Zhu Chenggang pointed out that if you want to reduce blood fat and treat cardiovascular diseases, you must go through regular hospitals and use professional machines to achieve blood purification. There is no need for ordinary patients to carry out such treatment. Only patients with a family genetic history or a particularly high blood fat content can apply to such treatment methods.

　　Text/reporter Zhang Ya Wang Tianqi Wang Haoxiong

　　Intern Zhang Yaolin Jing Wang

　　Coordinator/Jiang Shuo

　　Official response

　　Many health departments said that the project had not been approved.

　　The reporter of Beiqing Daily consulted the health departments in Fogang County of Qingyuan City, jianye district of Nanjing City and Chaoyang District of Beijing where the three medical institutions are located.

　　On February 21st, the staff of the Medical Administration Department of Fogang County Health Bureau in Qingyuan City, Guangdong Province said that the approved practice scope of the beauty hospital involved was cosmetic surgery, cosmetic dermatology and medical laboratory. "It is ok to do it within the skin, which is similar to hemodialysis ‘ Change blood ’ This kind, they don’t have this permission. " The staff said that they do not know the specific situation of this "treatment" in the beauty hospital involved for the time being, and will conduct an investigation according to the complaints of consumers.

　　On February 22nd, the reporter of Beiqing Daily called the Nanjing jianye district Health Bureau, and the staff said that the "blood purification" project described by the plastic surgery hospital involved had not been filed in the unit. "Blood things are no joke, even when many large hospitals are carried out, cases of infection can’t be avoided. We will ask the staff to investigate the specific situation of their project. "

　　On February 22, the reporter of Beiqing Daily called the Medical Administration Department of Chaoyang District Health Bureau as a citizen to ask whether the hospital involved had the relevant qualifications for "blood purification". The staff said that Ciming Aoya Hospital is a private hospital with a medical institution practice license. "If the hospital has a medical beauty department, it can carry out medical beauty services." After listening to the description of the "blood purification" project, the staff clearly stated, "I have never heard of this project you mentioned. You ask him to take out the approval and qualification materials and see what we give him for approval. It’s definitely not this. We have not approved this (blood purification) project here. " The staff suggested that patients who are unwell should go to public hospitals for treatment.

　　The reporter of Beiqing Daily noticed that as early as 2005, the Ministry of Health had issued "Strengthening ‘ Blood therapy ’ Notice of management ". According to the circular, medical institutions in some parts of China carry out so-called "blood therapy" by collecting patients’ blood, carrying out treatments such as magnetic supplement, adsorption, oxygenation, radio frequency, purification and medicine addition, or directly processing blood in patients’ blood vessels by physical methods. The safety and effectiveness of most of these therapies lack scientific research and evidence-based medical evidence, and may cause harm to human body. In this regard, the Ministry of Health proposed that "blood therapy" which has been proved to be safe and effective in clinical application through basic research and clinical research evaluation at home and abroad can be standardized on the premise of clear indications. For example, "ultraviolet irradiation and oxygenation autotransfusion therapy" can be used for clinical treatment of bacterial, fungal and viral infections, low immune function, poisoning and so on. The controversial "blood therapy" should not be provided to patients as a clinical service item. For "blood therapy" which has neither basic research conclusion nor clinical research,All clinical applications will be stopped.

　　In order to conscientiously implement the decision-making arrangements of the CPC Central Committee and the State Council on reducing the logistics cost of the whole society, further promote the logistics industry to reduce costs and increase efficiency, scrap and update trucks, and reduce pollution emissions, the Municipal Transportation Commission, the Traffic Management Bureau of the Municipal Public Security Bureau, the Municipal Bureau of Commerce and the Municipal Bureau of Ecology and Environment jointly issued the Notice on Priority Access of New Energy Logistics Distribution Vehicles in the Fifth Ring Road of this Municipality, Issue a day pass for new energy trucks (hereinafter referred to as the "pass"), and facilitate the passage at times other than the morning and evening peak hours (7-9: 00 and 16-19: 00) on the roads where trucks are not set up day and night signs in the city.

　　Combined with the actual production and life in this city, the circular clarifies the types of necessary materials for day transportation, including: express delivery to distribution centers, distribution outlets and other places; Lunch boxes and barreled meals entering various schools; Types of rice flour, grain, oil, meat, eggs, milk and other materials entering supermarkets, restaurants, farmers’ markets, wholesale markets and other places.

　　The pass can be applied as required, and any unit or its carrier that has the above-mentioned demand for day transportation materials can apply for it. On November 15th, it was launched on the website of Beijing Municipal Transportation Commission. It can be processed online in the whole process, and an electronic pass will be issued within three working days, providing the applicant with an integrated service with clear and transparent work flow and traceable progress of the whole process.

　　A new energy truck applying for a pass must meet the following four conditions:

　　First, vehicles should be included in the Catalogue of Announcement of Road Motor Vehicle Manufacturers and Products. There are three types of vehicles: van, fender truck and heavy tractor (none of the above vehicles includes mini-van), and the power source is pure electric (driven by electric motor with rechargeable battery as the sole power source) or hydrogen fuel cell.

　　Second, the vehicle is the license plate issued by the city and registered under the name of the material demand unit or its carrier.

　　Third, relevant data such as vehicle positioning and transportation information must be uploaded to the government platform.

　　Fourth, there are no abnormal conditions such as overdue safety technical inspection, unfinished accident, and overdue traffic insurance.

　　The applicant needs to access the vehicle positioning data in advance, log in and declare after registering on the website, and submit information such as vehicles, materials and transportation. The relevant departments can verify the status of illegal accidents of vehicles, confirm the necessity of day transportation of materials and evaluate the use of documents through the system, and generate electronic documents after verification. The applicant can view, download and print the pass in the system.

　　When passing through with a pass, you should abide by the provisions of road traffic safety. The public security traffic control department will continue to strengthen daily supervision and law enforcement, and relevant departments will also strengthen supervision after the event, and strive to create a safe, orderly and civilized road traffic environment.

　　In addition, on September 24th, our city issued the Detailed Rules for Beijing to Further Promote the Scrapping and Updating of Old Trucks and Large and Medium-sized Buses with National Emission Standards 4 and below, and eligible car owners can get subsidies ranging from 35,000 yuan to 170,000 yuan. Under the linkage of the above policies, old fuel trucks can be scrapped and updated into new energy trucks, which can not only get subsidies, but also get priority.

　　Ten questions and ten answers

　　1. Why should we formulate the priority traffic policy for new energy logistics distribution vehicles in the Fifth Ring Road of this city?

　　[Solution]

　　In order to conscientiously implement the decision-making arrangements of the CPC Central Committee and the State Council on reducing the logistics cost of the whole society, supporting equipment renewal and trade-in of consumer goods, and promoting the popularization and application of new energy vehicles in the transportation industry, optimize the energy structure of trucks in this city, and reduce pollutant emissions, combined with the recent series of incentive policies for scrapping and updating diesel trucks operated by the National Fourth Company in this city, we will further strengthen policy convergence and coordination, and effectively benefit the industry.

　　According to the Law of the People’s Republic of China on Road Traffic Safety, Regulations of Beijing Municipality on Prevention and Control of Air Pollution, Regulations of Beijing Municipality on Road Transportation and other relevant regulations, combined with the needs of urban production and life, this Municipality has set up a day transport pass for new energy trucks in the Fifth Ring Road (hereinafter referred to as the "pass") to facilitate the passage of new energy trucks that meet the requirements and ensure the transportation of necessary materials in the Fifth Ring Road. Pass can be applied on demand, and the demand unit or its transportation unit that transports necessary materials by day can apply. The types of materials and the requirements for trucks are introduced in detail later.

　　Considering the above factors comprehensively, we will implement traffic measures by vehicle type, time period and region, increase policy support and guidance, and promote cost reduction and efficiency improvement and new energy utilization of trucks in this city.

　　2. Please introduce the legal basis for issuing this notice.

　　[Answer] This circular is formulated in accordance with the Road Traffic Safety Law of the People’s Republic of China, the Regulations of Beijing Municipality on the Prevention and Control of Air Pollution and the Regulations of Beijing Municipality on Road Transportation, as follows.

　　First, Article 39 of the Road Traffic Safety Law of the People’s Republic of China stipulates that "the traffic management department of the public security organ may take measures such as diverting, restricting traffic and prohibiting traffic for motor vehicles, non-motor vehicles and pedestrians according to the specific conditions of roads and traffic flows".

　　Second, Article 25 of the Regulations on Road Transportation in Beijing stipulates that night transportation shall be the main mode, supplemented by day transportation. The city implements total control, classified management and optimal allocation of freight vehicles engaged in day transportation in the central area of the city, and gradually implements it; This Municipality shall publish the conditions of freight operators engaged in day transportation in the central area of the city, and the standards for the models, appearance, safety and environmental protection of freight vehicles; Determine the freight operators who meet the requirements in an open, fair and just way, and establish an elimination and withdrawal mechanism.

　　Third, Article 71 of the Regulations on the Prevention and Control of Air Pollution in Beijing stipulates that "the Municipal People’s Government may take traffic management measures to restrict motor vehicles in a certain area according to the quality of the atmospheric environment".

　　3. What are the types of daily transportation materials in this city?

　　[Answer] In order to ensure the normal production and life of the city, some materials can apply for a pass if they really need to be transported by day. After combing, there are mainly the following types: express goods entering distribution centers, distribution outlets and other places, and doing a good job in the distribution service of online shopping goods; Enter the rice flour, grain, oil, meat, eggs and milk dishes in supermarkets, restaurants, farmers’ markets and wholesale markets to ensure the transportation of daily necessities for the general public; Lunch boxes and barrel meals distributed to various schools have solved the problem that some primary and secondary schools do not have canteens, so that teachers and students can eat hot meals in time. In addition, there are temporary truck traffic needs such as moving companies.

　　4. What conditions do vehicles applying for a pass need to meet?

　　[Answer] A new energy truck applying for a pass must meet the following four conditions:

　　First, vehicles should be included in the Catalogue of Announcement of Road Motor Vehicle Manufacturers and Products. There are three types of vehicles: van, fender truck and heavy tractor (none of the above vehicles includes mini-van), and the power source is pure electric (driven by electric motor with rechargeable battery as the sole power source) or hydrogen fuel cell.

　　Second, the vehicle is the license plate issued by the city and registered under the name of the material demand unit or its carrier.

　　Third, relevant data such as vehicle positioning and transportation information must be uploaded to the government platform.

　　Fourth, there are no abnormal conditions such as overdue safety technical inspection, unfinished accident, and overdue traffic insurance.

　　5. Which specific sections of this city can licensed new energy trucks pass through at which specific time periods?

　　[Solution]

　　Traffic time: The city requires the management of limited trucks during the day. At present, trucks in this city are prohibited from passing within the Fifth Ring Road (excluding) from 6: 00 to 23: 00 every day. In order to ensure the demand for day transportation materials in the Fifth Ring Road, a day transportation pass for new energy trucks was set up. However, in order to avoid the overlapping of truck traffic and bus traffic in the daytime and alleviate the traffic congestion in the morning and evening rush hours, the daytime transportation time is set at 6-7, 9-16 and 19-23.

　　In terms of road sections: certified new energy trucks can pass through the roads in the city without the day and night ban sign for trucks within the specified time period. Here are three points to emphasize:

　　First, the roads where trucks are forbidden to pass day and night, such as Chang ‘an Avenue, cannot pass with certificates. The documents state the roads where trucks are forbidden to pass all day. Please read them carefully and pay attention to traffic signs during driving.

　　Second, licensed vehicles can pass through the truck-restricted areas set up in various districts outside the Fifth Ring Road (except the roads where trucks are forbidden to pass all day), but it is forbidden to pass through the main roads of the Second, Third and Fourth Ring Roads from 6: 00 to 23: 00.

　　Third, the morning and evening peak hours specified in the certificate, whether in the Fifth Ring Road or outside the Fifth Ring Road, must be strictly observed. In addition, please observe the relevant regulations on road traffic safety when driving, such as height limit and speed limit.

　　6. How many types of documents are there? Please introduce the validity of the certificate.

　　[Answer] According to the duration of validity of certificates, passes can be divided into three types: long-term certificates, short-term certificates and temporary certificates. The long-term certificate is valid for three months, which is suitable for day transportation needs with relatively fixed distribution objects and high frequency of use; Short-term certificate is valid for 1 month, which is suitable for the staged daytime transportation demand; The temporary certificate is valid for 7-15 days, which is suitable for temporary day transportation needs.

　　In order to promote the peak shifting of relevant vehicle positioning data and orderly access to the government platform, a short-term certificate will be issued before the end of 2024, valid for one month; From 2025, the necessity of material transportation demand and the efficiency of document use will be comprehensively judged, and three kinds of documents will be issued as a whole.

　　7. Where can I get a pass?

　　[Answer] In order to provide the applicant with an integrated service with clear and transparent work flow and traceable progress of the whole process, relevant departments are currently studying the integrated handling method, which will be launched on the website of Beijing Municipal Transportation Commission from November 15th. After the integration service goes online, it can be processed online all the time, and electronic passes will be issued within 3 working days.

　　8. What is the workflow for applying for a pass?

　　[Answer] The workflow is as follows:

　　First, the applicant needs to access the vehicle positioning data through the "Beijing Smart Freight Integrated Service Platform" in advance; Before the end of 2024, "access to positioning data" is considered as a tolerance for vehicle-related verification, as long as the applicant promises to access data before the end of 2024. Please carry out data access work in a staggered and orderly manner;

　　Second, after the integrated service is launched on November 15th, the applicant can register and log on the website of Beijing Municipal Transportation Commission to declare and submit information such as vehicles, materials and transportation.

　　Third, the Municipal Transportation Commission, the Municipal Bureau of Commerce, the Municipal Public Security Traffic Management Bureau and other departments have systematically confirmed the necessity of day transportation of materials, evaluated the use of documents, and verified the handling of vehicle accidents;

　　Fourth, after the vehicle passes the verification, the system generates the electronic code and electronic certificate, and the applicant can view, download and print the pass in the system.

　　9. What are the access methods and requirements for vehicle positioning data?

　　[Answer] The applicant accesses the "Beijing Intelligent Freight Integrated Service Platform" through the direct connection of the vehicle terminal, and the data reported by the terminal shall conform to the Technical Specification for Remote Service and Management System of Electric Vehicles.
Part 3: Communication Protocol and Data Format (GB/T 32960.3-2016) or Terminal Communication Protocol and Data Format of Satellite Positioning System for Road Transport Vehicles (JT/T
808-2019) standard requires that the frequency of positioning data fields is not more than 10 seconds, and the number of effective transmissions is not less than 30.

　　10. What information should I fill in to declare my certificate?

　　[Answer] To declare documents, you need to fill in three types of information, such as the applicant, the vehicle and the document requirements, including the name of the demanding unit, the name of the carrier, the license plate number, the brand model of the vehicle, the total mass, the type of goods transported, and the start and end time of the document requirements.

　　Comprehensive: Beijing issued according to Beijing Traffic Subscription Number.

Hu Guohua data map

　Cctv news On March 29, 1984, a young man came to the office of the State Patent Office, which was still painting and laying bricks. He held the card "Patent applicants line up here, the first aerospace institute 207" in his hand, and held it up and hung it on the door frame. When the scattered people around him saw that the young man was the vanguard, they consciously began to line up. This young man is Hu Guohua.

It turned out that in 1984, China’s first patent law was officially promulgated and implemented in April. After learning this news, Hu Guohua, who was working in No.207 Institute of the Second Hospital of the Ministry of Aeronautics and Astronautics at that time, came up with the idea of fighting for the first invention patent and letting the national No.1 patent "blossom" in space. In order to ensure that astronauts can obtain the first patent, Hu Guohua came to the National Patent Office to inquire in advance. He found the office that accepts patent applications. Although he hasn’t officially started to apply, there are already many people around him who are wandering around like him. Hu Guohua had a brainwave and wrote a card "Patent applicants line up here, ranking first in Aerospace Institute 207". People who didn’t know what to do originally were lined up by Hu Guohua.

In the afternoon, Hu Guohua brought bedding and waited outside the office for three days and nights. On April 1, 1984, he was finally the first to submit the patent application. In December 1985, Hu Guohua successfully obtained the certificate with the patent number of "85100001.0" issued by the State Patent Office, and became the "No.1 Patent" inventor of New China. The patent he applied for is called "Variable Optical Filtering Real-time False Color Display Method and Device". Simply put, it is to turn a black-and-white picture of the earth taken from a satellite into a color image according to certain characteristics, so as to see more information.

Do not forget your initiative mind is only because of the space dream.

In 1966, 23-year-old Hu Guohua graduated from the Physics Department of Fudan University and was assigned to work in Beijing Institute of Physics, China Academy of Sciences. In 1970, he took the original research topic and transferred to the 207 Research Institute of the Second Hospital of the Seventh Machinery Department (later the Space Department) to engage in optical research. Since then, the space dream has been deeply rooted in Hu Guohua’s heart and has become the driving force for him to persist in developing products for so many years.

His laser group is the earliest unit to carry out modern physical optics research in China. It started not too late, but because of the new principle, high requirements and low output of scientific research equipment, it needs to spend a lot of foreign exchange to import from abroad. Hu Guohua was very upset when he saw this situation, so he decided to design a set of cheap, universal and systematic modern optical experimental device.

The road to design is full of hardships. The difficulties he encountered were enormous: there was no assistant, no funds, no factory building, and even no laboratory where a newly-developed experimental instrument was placed. Hu Guohua’s difficulties attracted Deng Xiaoping’s attention. With the support of important responsible comrades of the Institute, the Institute, the Ministry and the Central Committee, Hu Guohua’s belief was strengthened, and he worked day and night to develop and tackle key problems.

Once he tried to design a "resettable device" with a reset error of less than one thousandth of a millimeter. He thought about walking and eating, but turned a blind eye to people. One night, he designed another device. Because he used his brain too much, his eyes suddenly turned black and he couldn’t see anything until noon the next day.

In 1980, Hu Guohua also developed the "Holography and Optical Information Processing Experimental System", which consists of 15 sets of more than 60 devices, including lasers, shock-proof platforms, optical and mechanical components. It can do dozens of modern optical experiments, such as holography, laser speckle, image spectrum analysis, spatial filtering and optical information processing, and is widely used. It can make blurred electron microscope images or satellite photos clear, and promote the early realization of optical computers with faster speed and larger capacity than electronic computers. The successful trial production of this experimental system has filled a gap in optical research equipment in China. At that time, only a few countries such as the United States could make and use it.

70-year-old retired to "plant the sun"

As an astronaut, Hu Guohua always has an "aerospace dream" in his heart. He dedicated his best years to the aerospace industry. After retirement, Hu Guohua still insisted on his own aerospace dream and never stopped after his seventies.

In recent years, based on years of research in the field of optics, and considering the future of industrial development, the leaders of 207 research institutes decided to participate in the project competition of developing a large-scale solar simulator in a research institute in Beijing, and formed a research team with optical experts to manufacture a solar simulator with a diameter of two meters. Hu Guohua, who was retired at that time, was one of them.

After studying the information about the manufacture of solar simulators at home and abroad, Hu Guohua began to challenge the research and manufacture of solar simulators according to the requirements of Institute 207. He worked tirelessly. In order to buy the parts for manufacturing the solar simulator, he personally drove around Beijing and found the relevant manufacturers to customize it himself. For a component, he has been to an optical production factory in Tongzhou District, Beijing for many times. Because of the special components he requires, even the technicians who process the components don’t know much about it. Therefore, he became a teacher again, explaining the principles and requirements of manufacturing optical components to technicians.

At that time, Hu Guohua was over seventy years old, and everyone in the team affectionately called him "the elder". Hu Guohua said: "I have never felt that I am a ‘ Elder ’ It’s never too old to learn. " He taught his experience and knowledge to young people without reservation, and at the same time learned from them their enterprising spirit.

Stick to the same as before, the space is boundless

Professional innovation, in life, Hu Guohua is using the knowledge to serve the public.

After retirement, Hu Guohua once created a space haunted house for an old Beijing street in the New Dong ‘an market in Beijing. Through the combination of space sound equipment and sound and photoelectricity, the horrible scene is reproduced. At that time, tourists lined up to experience the sci-fi effect of space sound; Hu Guohua also applied optical knowledge to anti-counterfeiting technology, made anti-counterfeiting trademarks for Xinjiang Tobacco Company, and made contributions to cracking down on counterfeit and shoddy products and raising national tax revenue.

Hu Guohua often uses it to help some poor countries. In April 2016, some scientists and technicians from Malaysia and Indonesia planned to build hydropower stations in some mountainous areas of East Malaysia to solve the lighting and living problems for local people. At this time, they found Hu Guohua, and Hu Guohua immediately planned for them and led them to visit Jinhua, Zhejiang. He brought China’s technology to Southeast Asia, which not only enabled the residents in those areas to use electricity, but also enabled China to transfer technology and gained economic benefits.

But doing all this, Hu Guohua didn’t make a penny. He spends his energy and wisdom to help others, which fully shows the feelings of an astronaut, that is, he is open-minded and generous, and he is willing to do whatever he can, regardless of gains and losses.

For half a century, Hu Guohua’s determination and belief in practicing his space dream need not be repeatedly emphasized. He has been telling people that he is an astronaut and practicing his space dream with practical actions. (Text/Contributed by 207 Institute of Wang Ruoyu Aerospace Science and Technology Second Hospital)

Original click on the starboard food table on the right

Did everyone eat zongzi on Dragon Boat Festival ~

Even during the Chinese New Year, we have to distinguish between "jiaozi School" and "Tangyuan School", but this Dragon Boat Festival, Zongzi is always a fixed program.

In order to visit the best zongzi in the country, Taiwan and Taiwan have gone deep into six provinces in the north and south and traveled tens of thousands of kilometers.

Our lens has recorded the most famous fresh meat dumplings in Jiaxing, the oldest yellow rice dumplings in Jinzhong in the north, Chaozhou double-spelling dumplings with a clever combination of salty and sweet flavors, as well as Quanzhou roasted meat dumplings, Zhaoqing steamed dumplings, Yunnan rice dumplings and Hainan five-color dumplings. ……

In the past, I only knew whether it was a sweet dumpling or a salty dumpling battle. I didn’t expect to subdivide it. There are many kinds of zongzi in our country, far beyond my imagination!

The zongzi that I want to share with you today is golden and transparent, sticky and sweet, and has a slight sweetness without adding sugar. It is the great predecessor of the zongzi industry-alkaline water zongzi.

Suanshui Zongzi first appeared in the Western Jin Dynasty, so it is not an exaggeration to say that it is the "ancestor" of Zongzi!

The ancient taste of alkaline rice dumplings is the taste of many people’s childhood, and our guest, Mr. Aike, has a "obsession" with it.

This year’s Dragon Boat Festival, please ask Mr. Aike to take us to recreate the taste in this memory ~

Make dumplings.

The traditional alkaline rice dumplings are made of alkaline water from plants, and it is more suitable to use the ashes from the shells of rice straw or tea seeds.

Using plant ash’s soda water test method, the process is very similar to making coffee by hand.

Prepare a filter basket, put a basin under it, put the ash into the filter bag and smooth it, and slowly and evenly pour boiling water on it.

Let the filtered grey water stand for 30 minutes, take out the clear part of the upper layer, and cool it to normal temperature.

Put the washed and drained round glutinous rice into clear alkaline water, soak it for 30 minutes, and then filter it for later use.

Fresh zongzi leaves can’t be wrapped directly, so they should be boiled in clear water for 5-10 minutes, and then soaked in cold water for later use.

Teacher Aike shared two kinds of alkaline dumplings, one made of sappan wood and the other made of bean paste. When you are ready, just open the bag ~

01 | Sumu Suan Shui Zongzi

It is an ancient practice to wrap hematoxylin in alkaline rice dumplings.

Sappan not only has the effects of promoting blood circulation, removing blood stasis, reducing swelling and relieving pain, but also is a natural plant dye.

The cooked Sumu alkaline rice dumplings will reveal a faint deep red color in the golden glutinous rice, which is very beautiful.

The bought sappan wood should be trimmed first and cut into thin strips of uniform size with a knife.

Take a leaf of zongzi, fold it into a funnel shape, fill it with glutinous rice, and put a piece of hematoxylin in the middle.

Compact the rice, and tie the zongzi firmly with zongzi rope.

Click on the picture above to see four ways to wrap zongzi.

The shape of zongzi varies according to preferences. We have shared four ways to wrap zongzi, so let’s review them ~

Sumu alkaline rice dumplings taste sticky and elastic, with a little fragrance of rice, and a touch of sweetness in the faint alkaline taste.

When eating, take out the hematoxylin and dip it in white sugar or osmanthus sauce to eat it best.

02 | Dumplings with bean paste and alkaline water

Sweet alkaline rice dumplings are a good match with delicate bean paste, with a Q-shaped skin, full stuffing and sweet mouth.

First, knead the bean paste stuffing and put it in the refrigerator for later use-if it is soft and collapsed, glutinous rice will be embedded in the stuffing, and the dumplings will not look good!

When wrapping bean paste dumplings, you should first lay the bottom with glutinous rice, add the bean paste stuffing, and then fill it with glutinous rice.

Be careful not to let the rice grains leak out, wrap them and tie them tightly with zongzi rope.

When both kinds of zongzi are wrapped, you can start cooking.

Put zongzi in cold water and cook for two hours. After turning off the fire, continue to soak until it cools, and you can peel it off and enjoy it.

It’s amazing to make zongzi with alkaline water. The ashes of rice straw are made into alkaline water, soaked in rice, and wrapped into zongzi. It’s more beautiful to make the best use of the hair color and fragrance.

What are the characteristics of Zongzi in your hometown? What’s your favorite flavor? Share it with Taiwan ~

Everyone, Dragon Boat Festival is healthy!

Text | Ruka

Figure | Zhong Heng

Original title: "Dragon Boat Festival Ankang, send you an" ancient early rice dumpling ",sweet without sugar! 》

Read the original text

Twenty-three departments jointly issued nineteen measures.
Accelerate the release of demand and expand residents’ consumption

With the consent of the State Council, 23 departments, including the National Development and Reform Commission, the Publicity Department of the Communist Party of China and the Ministry of Finance, jointly issued the Implementation Opinions on Promoting Consumption Expansion, Upgrading and Accelerating the Formation of a Strong Domestic Market (hereinafter referred to as the Opinions). The Opinions put forward 19 measures to promote consumption expansion and quality improvement from six aspects: market supply, consumption upgrading, consumption network, consumption ecology, consumption capacity and consumption environment, and help form a strong domestic market.

Expanding consumption is an important focus to hedge the impact of the epidemic.

The COVID-19 epidemic has had an impact on China’s consumption at present and even in the future, especially in the fields of shopping, catering, tourism, culture, education and entertainment.

"Releasing the suppressed and frozen consumer demand, cultivating and growing the new consumption and upgraded consumption that were born in the prevention and control of the epidemic, and making the physical consumption and service consumption be replenished, is one of the important points to hedge the impact of the epidemic." Chang Tiewei, deputy director of the Employment Income Distribution and Consumption Department of the National Development and Reform Commission, said that it is of great significance to promote consumption expansion and quality improvement while doing a good job in epidemic prevention and control.

Since last year, the CPC Central Committee and the State Council have deployed a series of policies to promote consumption, and various localities have successively introduced a number of targeted measures, such as Beijing, Tianjin, Shanghai and other places to build a new platform for consumption upgrading by cultivating night economy.

"The Opinions are the inheritance and development of previous policies." Chang Tiewei said that it not only inherited the previous policy orientations such as updating consumption and cultural tourism consumption, but also integrated into the new models, new formats and new industries in the current new consumption development.

To expand consumption, the key is to conform to the upgrading trend of residents’ consumption, break through the "blocking point" and "pain point" in the consumption field, break down the institutional and institutional obstacles that restrict consumption, and improve the governance capacity in the consumption field. The "Opinions" adhere to the structural reform of the supply side as the main line, seize the most potential consumption areas and focus on improving supply, constantly improve consumption policies, optimize the consumption environment, and stabilize consumption expectations.

Chang Tiewei introduced that the Opinions pay more attention to service consumption in terms of consumption types; Highlight holiday and night consumption in terms of consumption time; Accelerate the cultivation of new models such as online and offline integration in terms of consumption patterns; Focus on launching the county consumption engine in the consumption area; In terms of consumer groups, we will focus on enhancing the consumption power of low-and middle-income groups, and urge the vast number of urban and rural residents to consume, be willing to consume, and dare to consume.

Accelerate the construction of information infrastructure and build a "smart+"consumption ecosystem.

Cloud fitness, cloud shopping, cloud shopping, cloud reading … Since the outbreak, "cloud business" has developed rapidly. "Mobile phone ordering and delivery to home" has become the first choice for people to buy fresh food, medicines and other necessities during their stay at home.

"The new consumption formats and new models represented by online shopping have shown strong development potential in this epidemic." Chang Tiewei said that in 2019, the online retail sales of physical goods in China accounted for 20.70% of the total retail sales of consumer goods, which was about 8.52 trillion yuan. It is expected that the online retail sales of physical goods will exceed 10 trillion yuan this year.

"With the gradual control of the epidemic, China’s consumer market will usher in a new round of rapid development opportunities." Wei Wang, director of the Institute of Market Economy of the State Council Development Research Center, said that innovative online service models, especially in the fields of entertainment, education and medical care, have been recognized and accepted by consumers, which will greatly promote the further improvement of new formats and new models and drive more online service consumption.

The "Opinions" put forward four specific measures to cultivate new consumption formats and new models, and accelerate the construction of a "smart+"consumption ecosystem.

Accelerate the construction of a new generation of information infrastructure. Accelerate the construction and commercialization of information infrastructure such as 5G networks.

Encourage the development of new consumption patterns such as online and offline integration. Improve the "internet plus" consumption ecosystem, and promote online and offline interaction and business travel style coordination.

Encourage consumers to use green smart products. Encourage enterprises to use the Internet of Things, cloud computing, artificial intelligence and other technologies to promote the intelligent upgrade of various electronic products, and accelerate the development of new information products such as virtual reality and wearable devices.

Vigorously develop the consumption pattern of "internet plus Social Service". All departments will promote the online and offline integration of education and training, medical care, aged care services, infant care, sports events and other service consumption.

"The Opinions proposes to build a’ smart+’consumption ecosystem to adapt to the development trend of smart and online consumption at this stage. While promoting consumption expansion and quality improvement, we will better lead the industry to intelligent and green development and promote the dual upgrading of industry and consumption. " Wang Yun, a researcher at China Macroeconomic Research Institute, said.

Continuously improve consumption capacity and build a consumption network integrating urban and rural areas.

The consumption pattern is wired online and offline, and there are cities and towns in the consumption space. To improve the quality and expand the consumption, it is necessary to realize the coordinated and interactive development of the urban and rural markets. What other "hard bones" are there to break through urban and rural consumption and expand grassroots and rural consumption?

"There is still a’ stuck neck’ link in the current consumer infrastructure." Chang Tiewei said, for example, the service consumption infrastructure is not perfect, the shortcomings of consumption facilities in some emerging urban areas and rural areas are prominent, and the distribution of urban commercial facilities is unreasonable.

Wei Wang said that in order to build a consumption network integrating urban and rural areas, on the one hand, we should promote the construction and development of consumption center cities, accelerate the development of middle and high-end consumption and service consumption markets, and form a group of international consumption center cities with large consumption scale, strong consumption radiation driving effect, outstanding consumption innovation leading ability and international influence, and become a leading demonstration base for China’s consumption upgrading and expansion.

The "Opinions" propose to further improve the tax-free industry policy and improve the supply of imported goods. We will support central cities to strengthen the "first-store economy" and "first-time economy", encourage internationally renowned brands to launch or simultaneously list new products in the China market, and adjust and optimize the collection links of some consumption tax items.

"On the other hand, we should speed up the sinking of the consumer market, build a platform for cooperation and exchange between Internet companies and poverty-stricken areas, promote the two-way circulation of industrial products to the countryside and agricultural products to the city, boost the sales of agricultural products with characteristics and advantages in rural areas, especially in deep poverty-stricken areas, and better meet the consumer demand in rural markets and carry out consumption poverty alleviation in depth." Wei Wang said.

The income level of residents is directly related to their consumption ability, and the expansion and upgrading of consumption cannot be separated from the improvement of consumption ability.

"To improve the consumption power of residents, we should pay attention to improving the income capacity of middle-income groups and enhancing basic security, and promote the reform of the income distribution system." Wei Wang said, smooth the upward flow channels for low-income groups, steadily expand middle-income groups, strive to narrow the income gap among residents, and accelerate the improvement of the income incentive mechanism for knowledge-based, skilled and innovative workers. (Reporter Li Xinping)

　　At 4: 00 a.m. on July 22nd, in Zhongshan City, a case of COVID-19’s nucleic acid screening positive was found during the nucleic acid detection of those who returned to Guangdong from middle and high risk areas. It was positive after review by the municipal CDC. Zhongshan immediately launched the emergency response plan, quickly entered the emergency state, and carried out the work of tracing the source, personnel investigation and control, nucleic acid detection, control and disinfection of key places.

　　The relevant information is as follows:

　　First, the basic situation of positive cases

　　Guo Moumou, female, 23 years old, is an employee of a company in Zhongshan Health Base, Torch Development Zone, Zhongshan City, and lives in a single dormitory of the company. On the afternoon of July 21st, I went to Torch Development Zone Hospital for COVID-19 nucleic acid detection. In the early morning of July 22, it was reported that the initial screening result of nucleic acid detection was positive, and it was positive after review by the Municipal Center for Disease Control and Prevention, and it was judged as asymptomatic infection, and it was transported to the designated hospital for isolation treatment in a closed loop.

　　Second, the trajectory of positive cases

　　From July 7 to July 14, I had no history of going out in Zhongshan, and mainly worked in the company.

　　On July 14th, Guo Moumou collected throat swabs in Zhongshan Torch Development Zone, and the result of COVID-19 nucleic acid test was negative.

　　On the afternoon of July 15th, I flew to Nanjing in zhuhai jinwan airport and arrived at T2 Terminal of Nanjing Lukou Airport at 21:55.

　　July 16th to 19th at noon, mainly in Nanjing and Wuxi, Jiangsu Province.

　　On the afternoon of July 19th, I departed from Nanjing Lukou Airport Terminal T1 and returned to zhuhai jinwan airport by flight CZ5846 (taking off at 13:35- arriving at 16:05, seat number 54H). After arriving in zhuhai jinwan airport, transfer to the Airport Express to Zhuhai Station, and take the bullet train (D942, Zhuhai Station 18:15- Zhongshan Station 18:38, carriage 13C) to Zhongshan Station. Transfer to buses K08 and 001 and return to the dormitory at about 20: 00 on the same day.

　　On July 20th, I worked in the company from 8:30 to 17:30, and moved downstairs in the dormitory after work.

　　I went to work in the company from 8:30 to 17:30 on July 21st. According to "Warm Tips on Health Management of People Coming (Returning) to Zhongshan in Nanjing" issued by Zhongshan City, I went to the Development Zone Hospital for nucleic acid testing after work, and immediately returned to the dormitory by network car after sampling.

　　Closed-loop transport to designated treatment hospital in the early morning of July 22.

　　Iii. Emergency response

　　On the morning of July 22, Zhongshan City carried out nucleic acid detection and comprehensive disinfection of the environment and personnel in the factory and dormitory areas where the infected people were located.

　　Up to now, 435 close contacts and key people have been identified, and control areas have been delineated according to Guo’s activity trajectory, and control measures have been implemented.

　　It is planned to start the whole city’s nucleic acid screening. Please actively cooperate with the arrangement of the government and the community.

　　The Office of COVID-19 Epidemic Prevention and Control Headquarters in Zhongshan City appeals to the general public, those who took CZ5846 flight from Nanjing to Zhuhai on July 19th, carriage 01 of train D942 from Zhuhai to Guangzhou, and those who took buses K08 and 001 at the same time with Guo Moumou, please report to the community immediately and conduct nucleic acid detection at the nearest COVID-19 nucleic acid detection point.

　　At the same time, please pay attention to the official authority release, do not believe in rumors, do not spread rumors, further raise awareness of prevention, and do a good job in personal hygiene protection. Don’t leave the city, go out of the province or go to middle and high risk areas if it is unnecessary in the near future. If there are returnees from high-risk areas, please do a good job in health monitoring and management according to the announcement and guidance of COVID-19 Prevention and Control Command Office in time.

　　　　Whether you look at it or not, it’s right there. It’s still spicy and expensive. With the closing of this year’s Science and Technology Spring Festival Evening-Apple’s autumn conference, the previous rumors about /7 Plus have also been implemented. Although the design is unchanged and there is no subversive technology, analysts are generally not optimistic about the sales of this generation, but from the consumer’s point of view, the iPhone is still hot when it is released. You may still have some things unclear about iPhone7/7 Plus. Today, I will come to know with you.

　　　　1. What is the performance of A10 processor used in 1.iPhone7/7 Plus?

　　　　The A10 processor on the iPhone7/7 Plus has been upgraded from the "dual-core" that has remained unchanged for ten thousand years to a quad-core, which is called A10 Fusion. It was mentioned at the press conference that the CPU performance of A10 processor is 40% faster than A9, twice as fast as A8 and 120 times faster than the first generation. GPU performance is 50% faster than A9, 3 times faster than A8 and 240 times faster than the first generation.

Apple A10 processor (picture from Apple official website)

　　　　A10 Fusion adopts 16nm FinFET+ technology. According to arstechnica test, A10 processor can only turn on two cores at the same time, in which the maximum running frequency of the large core is 2.34GHz, and the small core is 1.05GHz according to GeekBench4 running score. The performance of CPU running scores in single-core and multi-core exceeds that of Android flagship Xiaolong 820 by more than one thousand points. GeekBench4 measured data, single core 3483 points, multi-core 5596 points.

GeekBench4 running score measurement

　　　　2. Has the battery capacity of 2.iPhone7/7 Plus changed compared with the previous generation? What is the battery life?

　　　　According to Apple’s usual practice, the battery capacity of the new iPhone was not announced at the press conference, and the author didn’t specify the battery capacity from the screenshot of official website parameters. In a word, you just know that the iPhone7 battery is durable.

Apple official website power description (picture quoted from Apple official website)

　　　　Although official website has no parameters, the Ministry of Industry and Information Technology has given a magic knife. On the website of the Ministry of Industry and Information Technology, we can see that the parameters of the two models A1660(iPhone7) and A1661 () released by Apple this year are more detailed, among which the battery capacity of iPhone7 is 1960mAh, which is 245mAh； higher than that of 1715mAh. The battery capacity of is 2900mAh, which is 150mAh higher than that of 2750mAh. It seems that it is quite obvious to increase the battery capacity by canceling the earphone hole and increasing the internal space.

IPhone7 battery power of the Ministry of Industry and Information Technology (picture quoted from official website of the Ministry of Industry and Information Technology)

Battery capacity of the Ministry of Industry and Information Technology (picture quoted from official website of the Ministry of Industry and Information Technology)

　　　　It takes 2 hours and 50 minutes to charge from 0 to 100% with the equipped 5V1 charger (which is not full of resentment). It is not too exaggerated. The measured time to play 1080P video at full charge can reach 9 hours, surpassing most Android phones.

　　　　3. I heard that iPhone7/7 Plus is waterproof. Can I finally play underwater this time?

　　　　With waterproofing and Samsung’s waterproofing, it is really unreasonable for Apple not to do it. Finally, the iPhone7/7 Plus supports IP67 waterproof. The so-called IP67 refers to the protection of the cabinet from short-term immersion in water under standard pressure for a short time, usually in an environment with a water depth of 1 meter for half an hour. IPhone7/7 Plus cancels the 3.5mm headphone jack, switches to the non-pressing Home button, and adds a sealed rubber ring at the connection of the screen shell, which makes the waterproof effect of this mobile phone good as a whole.

Apple official website Waterproof Publicity (picture quoted from Apple official website)

　　　　After our actual measurement, the iPhone7 can run normally after being put in a container filled with water for a period of time, and I believe that splashing water drops in daily life should not be a problem. But if you think that in this way, you can play with it casually, then you are wrong. According to official website’s statement, the functions of splash-proof, water-proof and dust-proof are not permanent … The damage caused by immersion in liquid is not covered by the warranty. Therefore, I hope everyone will take good care of your iPhone7, and it is better to stay away from water.

Measured waterproof effect of iPhone7

Apple official website statement (picture quoted from Apple official website)

　　　　4. I changed my iPhone7. Can I still use a bunch of mobile phone cases?

　　　　Friends who have got the bright black iPhone7 must have found this powerful "fingerprint collector" really worrying, and they don’t have the courage to streaking, so let’s wear a mobile phone case honestly. However, I want to remind you that this generation of iPhone is not compatible with the iPhone case of iPhone6/6s. In terms of size, this generation of iPhone is no different from the previous generation. Needless to say, the size of the opening of the dual-camera version is different, and the camera position on the back of the iPhone7 has also moved down some incompatible mobile phone cases. It seems that this time, the parts manufacturers have to earn a lot of money again.

Online iPhone7 mobile phone case has been sold (picture quoted from JD.COM)

　　　　5. What’s the sound quality of iPhone7 with Lightning interface?

　　　　Replacing the 3.5mm headphone jack with Lightning is one of the biggest changes of iPhone7/7 Plus. After canceling the 3.5m headset interface, this generation of iPhone is equipped with a headset with a Lighting interface, and also comes with a 3.5mm to Lightning interface. Of course, local tyrants can also buy the AirPods Bluetooth headset worth more than 1,200.

Comparison between iPhone7 with 3.5mm headphone jack removed and the previous generation

　　　　Let’s listen to our editor’s evaluation of the sound quality of EarPods with Lightning interface with iPhone7: Compared with EarPods with 3.5mm interface, the voice of the new earphone has become closer, and the background is much cleaner, so there will be no other miscellaneous sound interference when listening to human voice. It is the low-frequency part that changes little, and the high-frequency part as a whole tends to be dull but relatively resistant to listening. Of course, different people have different requirements for sound, and you need to listen to the specific effect yourself.

　　　　6. How difficult is the maintenance of this generation of iPhone?

　　　　Although the iPhone7/7 Plus has just been released for about a week, the foreign media iFixit has given the repairability score of the new iPhone. On the premise of a total score of 10 points, the new iPhone got 7 points, which is the same as last year’s iPhone6s, which means that it is still relatively easy to repair.

IPhone7 disassembly (picture quoted from iFixit)

　　　　IFixit said that it is not difficult to disassemble the battery in general, although it requires special screwdriver and technology to remove adhesive. The design of the new Home button improves the probability of successful disassembly and avoids the damage of the physical Home button. The new dustproof and waterproof function of iPhone7 makes the repair more difficult, which also makes the screen repair more difficult. IPhone7 has added three-point screws, and at least four different screwdrivers are needed to modify the machine.

　　　　7. It’s so expensive to buy in mainland China. Will it be cheaper to buy iPhone7 in Hong Kong?

　　　　This year, the release date of iPhone just coincides with the Mid-Autumn Festival. Although the mainland is also launching Hong Kong dollars, the price in the mainland is relatively high due to tariffs and other issues, so many friends will take advantage of the holiday to buy in Hong Kong. The author checked the price of the Hong Kong version of the iPhone in Apple, Hong Kong and official website, and made some conversion. At present, the Hong Kong version of the 32GB capacity iPhone7 sells for HK$ 5,588, which is about RMB 4,807 (the same configuration of the iPhone7 of the Bank of China sells for RMB 5,388, saving RMB 581); The 32GB capacity of the Hong Kong version is priced at HK$ 6,588, which is about RMB 5,667 (the same configuration version of the Bank of China is priced at RMB 6,388, saving RMB 721). From this point of view, if you buy an iPhone in Hong Kong on the way to travel, you do have a certain price advantage and more discounts.

Apple Hong Kong official website price (picture quoted from Apple Hong Kong official website)

　　　　However, with the release of iPhone7, Shenzhen Customs also issued a notice to mainland tourists. When bringing the latest iPhone into the country from Shenzhen Port, you must declare tax payment to the customs at a tax rate of 15%, and each person is only allowed to bring one iPhone7 into the country. The author calculated an account: If you buy the Hong Kong version of iPhone7 and pay 15% tax, the overall cost will be more than 100 yuan higher than the price of Bank of China in official website, which is really not cost-effective. Moreover, in order to crack down on Hong Kong scalpers, Apple introduced a new policy: Hong Kong will no longer provide free return service within 14 days. Therefore, on the whole, going to Hong Kong to buy an iPhone or even helping others to purchase it is risky to be taxed when entering the customs, and the price advantage is not obvious.

　　　　8. The front camera is upgraded again. Is the self-timer effect better?

　　　　From iPhone6 to iPhone6s, the front camera has jumped from 1.2 million pixels to 5 million pixels. This time, 2 million pixels have been added to iPhone7. You can compare the self-timer effect by yourself.

Comparison of iPhone selfie effects (left: iPhone6s Plus, right: iPhone7)

　　　　Judging from the proofs, the increase of iPhone7 pixels has really improved the self-timer effect, especially the detail resolution. It turns out that iPhone self-timer always gives people a gray feeling, and this sample looks more transparent. The iPhone7/7 Plus follows the Retina flash on the iPhone6s, and the aperture has not changed.

　　　　9. What’s the difference between the dual camera and the dual camera of other mobile phones?

　　　　Live up to expectations, Apple has finally added dual cameras to this generation of computers. Although it is criticized as ugly, it is still an improvement. Let’s take your time after smoothing something out.

Use a 28mm lens to view in a fixed position.

Use a 56mm lens to view at the same position.

　　　　Although dual cameras have been widely used by many manufacturers before, especially in 2015, we can find that Apple’s technology is somewhat different from other brands after careful consideration. As far as other dual-camera phones in 2015 are concerned, almost all of them use color+black and white synthesis technology, that is, one lens records color information and the other records black and white information. It is equipped with two lenses with different focal lengths, including a wide-angle lens with an equivalent focal length of 28mm and a telephoto lens with an equivalent focal length of 56 mm. When shooting, double zoom and double zoom enable different lenses respectively, but there is no smooth transition in the middle, and the telephoto one of the two lenses does not support optical image stabilization.

　　　　10. What is the annual replacement plan for 10.iPhone?

IPhone annual rejuvenation plan (picture from Apple official website)

　　　　At the press conference, at the same time as the launch of the new iPhone, Apple announced the launch of the "iPhone Upgrade Plan" in China, which allows users to purchase a new iPhone by purchasing the AppleCare+ plan, and get a discount of 50% of the original payment for the device within one year. After purchasing AppleCare+ service, consumers can enjoy two years of hardware maintenance, support and two accidental damage warranty services, and each time they charge an extra service fee (188 yuan for screen replacement and 628 yuan for any other damage maintenance), and the service itself, known as the "iPhone Annual Renewal Plan", costs 988 yuan. After the editorial partner calculated the price of the second-hand iPhone in the current market, it was not cost-effective, so everyone was free to choose whether to buy it. Friends who want to buy need to make an appointment in official website and go to the store to buy.

What is the most popular mobile phone to buy this year? Scan the code and you will know

　　　　11. Is the bright black version of the back shell easy to scratch?

　　　　Let’s start with the conclusion: it scratches and is easy. With more and more people getting the bright black version in recent days, there are more and more sayings about the bright black of iPhone7, which is not wear-resistant. Interested friends can search for the "violence test" made by netizens, and ordinary metal keys can easily turn your iPhone7 into a big face. Therefore, it is not recommended to buy a bright black version of the friend streaking without a set, at least you should stick a film on the back.

Foreign netizens conducted a scratch resistance test (picture taken from Youku)

　　　　I got the matte black version of iPhone7, and there were some small scratches on the front screen in a few days’ use, which would be magnified under the light. Therefore, if there is no strong demand for appearance, it is recommended to buy other color versions.

　　　　12.iOS10 is here. What are the new features?

　　　　It has been a week since the official launch of iOS10. According to the data of the third-party survey organization, the installation rate of the official version of iOS10 has reached about 34%, compared with only about 30% in the same period last year.

New features of iOS10 system (picture from Phone Arena)

　　　　To talk about the new features of iOS10, the most intuitive feeling is that it is more and more like Android. For example, if you pick up the auto-bright screen, the screen lock interface will display the push message and operate it directly through 3D Touch without unlocking it. On the basis of flat design, some card elements are added, such as slide-up control center, drop-down notification list, Spotlight interface, etc., so that the overall UI interface is more harmonious and unified. In iOS10′ s Apple Map, a car calling function has been added. Many emoticons are added to iMessage, and pictures, music and hand-drawn patterns can be inserted into the conversation at will. The automatic identification of telephone IP and harassing phone prompts added by iOS10 can also be regarded as a great improvement. Overall, the new functions of iOS10 are worth upgrading.

　　　　13. The Home button of 13.iPhone7/7 Plus can’t be pressed. What’s the actual experience?

　　　　Compared with other improvements, the Home button that cannot be pressed is one of the subversive designs. Although the new design can reduce the wear of the Home button and increase the use time, I always feel a little unaccustomed when I first get started. In the setting interface of iPhone7/7 Plus, Apple has provided users with three different pressing forces for their own setting. Pressing the Home button hard will give vibration feedback. In actual use, the author found that the Home button of touch mode is more likely to be touched by mistake, and friends who are not used to using 3D Touch will call out or fail to press because they can’t grasp the pressing time well. The distinction between long pressing and short pressing is not as clear as that of physical buttons. So friends who bought iPhone7/7 Plus, you should adapt more.

Only press, not press.

　　　　It’s also worth saying that in the past, you can hard restart by pressing and holding the power +Home button when it crashes. Now, canceling the physical Home button on the iPhone7/7 Plus can’t be restarted in the same way, but it is changed to long press and hold the power+volume minus two physical keys.

　　　　As for the question of whether you can use the Home button with gloves, the author also tested it. Because there are no gloves around, I use the material of my shirt instead. It is found that when there are about two layers of cloth between the finger and the Home button, there is no response no matter how to press the Home button, and there is a certain chance of failure when only one layer of cloth is used. So … No way, since you want to buy it, just bear it!

　　　　14. Some people say that iPhone7 is a rhubarb screen. What should I do if I look uncomfortable?

Realistically speaking, the iPhone in the last two years really looks "yellow", which is mainly caused by the warm screen color temperature adjustment of Apple’s iPhone in recent generations, because the color temperature between 6000-6500K is more in line with Asian visual habits. But how to preset it is your business. The key is whether you can change it yourself. After searching in many ways, the author found a way to solve the problem of iPhone Huang Ping.

The screen is a little yellow? Adjust yourself.

　　　　In iPhone settings, you can find "Auxiliary Functions", select "Display Adjustment"-"Color Filter", after opening the filter, pull the slider bar "Intensity" option to the far left, and slowly drag the "Tone" option to the left, and just choose a position that suits you best.

　　　　15. Regardless of the warm color temperature, what is the screen display effect of iPhone7/7 Plus?

　　　　In the publicity of iPhone7/7 Plus in official website, it is said that it uses a new wide color gamut technology with richer color display levels. Recently, the measured analysis of the screen performance of iPhone7 by authoritative testing agency DisplayMate also confirms this statement.

IPhone7 color gamut test (picture quoted from DisplayMate)

　　　　The measurement proves that iPhone7 has two standard color gamut DCI-P3 and sRGB/Rec.709 sRGB is a traditional color gamut standard, which is used for common digital content in daily life, while DCI-P3 is used in 4K ultra-high definition TV and digital cinema, which is called wide color gamut. It can be seen from the test chart that the color gamut performance of iPhone7 is very close to the standard whether it is DCI-P3 or sRGB/Rec.709-iPhone 7 covers 102% of DCI-P3 and 104% of SRGB/REC.709.. The contrast measurement shows that the contrast of iPhone7 is 1762, which is also a record high for iPhone.

　　　　16. The capacity has increased. What is the approximate cost of the iPhone7?

　　　　Every year when the iPhone is released, some people think that Apple’s profit is particularly high in the face of high price. This year, the configuration of iPhone7 has improved in all aspects, but the price has not changed much. So how much can the cost of iPhone7 be? According to foreign media speculation, the cost of a 128GB iPhone7 is about $292.

IPhone7 disassembly (picture quoted from iFixit)

　　　　According to the component prices of some popular smart phones, CNN estimated that the battery cost is about $4, the camera component cost is $26, the logic board cost is $74, the speaker cost is $11.5, and other parts cost $117.5 (including small sensors and baseband, etc.), among which the logic board and screen should be the two most expensive components of the iPhone.

　　　　Of course, this calculation ignores the exclusive customized components, assembly labor, transportation, storefront and other costs of the iPhone, so it cannot be generalized that the cost of the iPhone is only so low.

　　　　17. What material is used for iPhone 7? Do I still have to worry about sitting in a corner?

　　　　In other words, from the beginning, Apple has used the same design for three consecutive generations, and the same shape can’t help but make people continue to worry about whether the iPhone7 will also be bent.

Is iPhone7 easy to baiwan (picture quoted from Phone Arena)

　　　　It is understood that the iPhone7 is made of the same 7000 series aluminum alloy material as the iPhone 7, which is hard enough not to be afraid of baiwan. However, you can think about it, will it be oxidized after a long time? At present, there are no relevant cases, and Apple has not given an official guarantee.

　　　　18. Just released, iPhone7 was questioned by the unkind materials used for flash memory chips?

　　　　When disassembling the 128GB version, iFixit found that the machine adopted Toshiba flash memory (NAND) chip of THGBX6T0T8LLFXF, which is a TLC chip. Compared with SLC chip, TLC chip has the characteristics of slow transmission speed, short life and low production cost, so it will be the first choice for some manufacturers. However, as a mobile phone with a starting price of 5388 yuan, it is really unreasonable for Apple to adopt TLC chip. However, at present, TLC chip seems to exist only in the large memory version of iPhone7/7 Plus, and the 32GB version seems to have survived.

Cheap chips for mobile phones with a price of more than 5,000 yuan are a bit … (picture quoted from iFixit)

　　　　19. The overall capacity of 19.iPhone7/7 Plus has doubled. Which version should I buy?

　　　　Different from many domestic manufacturers’ practice of adding a capacity price and 200 yuan to their mobile phones, Apple is still adding a capacity to increase the price of 800 yuan this year. The difference is that the overall capacity of the iPhone has doubled this year, and the gap between them has widened. It seems that this year Apple seems to be more kind than in previous years. This iPhone7 in my hand is a 32GB version. After installing iOS10 system, the remaining capacity is 27.82GB, and after installing several applications and games, the remaining capacity is about 18GB. It is hard to imagine that this memory will be enough if it is not cleaned frequently in the next year or two. Therefore, if the money is not bad, buy the 128GB version directly in one step. I have to say, Apple had a wonderful time canceling the 64GB version.

The memory is upgraded by one file and the price is increased by 800 yuan (picture is quoted from Apple official website)

　　　　20. The functions of 20.iPhone7/7 Plus have won my heart. Should we start now or wait?

When is the right time to start iPhone?

　　　　If you are an iPhone hardcore fan, you can start now.

　　　　If your girlfriend is a brain-dead powder of iPhone, you can start now.

　　　　If you are a geek and want to experience the new iPhone features, you can start now.

　　　　If you don’t have a mobile phone in your hand or are still in the era of functional machines, you can start now;

　　　　If you are a local tyrant, you are not short of money at all, so please ignore any of the above reasons and start now.

　　　　In addition to the above reasons, in my opinion, if other friends want to start with iPhone7/7 Plus, they’d better wait. As far as many electronic products, including Apple, are concerned, there will always be some problems in the first batch of products just released. If you don’t have an urgent need for iPhone, why should you be the first person to eat crabs? Let’s wait and see. It’s not too late to start again if there are no serious problems. If you have time, you might as well go to the Apple Experience Store and try to feel it. After all, money is more practical in your pocket.

Jing Hanqing’s name was registered as a trademark.

　　The cybersquatting company first exposed the verbal threat and then showed weakness for peace.

　　On August 5, the reporter met Jing Hanqing. In the past few days, he was overwhelmed by the cybersquatting of his name, and even stopped the short video update.

　　Jing Hanqing introduced that on July 30th, he received an email from "Zhiqiao Electronic Products Sales Department in Jinghu District". The other party claimed that he was the holder of the registered trademark of Jing Hanqing, and said that WeChat official account, a platform operated by Jing Hanqing, had infringed their exclusive right to use the registered trademark.

　　In this regard, Jing Hanqing is puzzled. Then he released a video telling fans that the name he had used for 22 years could not be used.

　　Unexpectedly, a few days later, the other party sent another provocative email: "I wanted to deal with it gently. To tell you the truth, the trademark has been changed several times. If you don’t understand, hire a lawyer early, hire a good team, and don’t fool around all day … …”

　　Seeing this email, Jing Hanqing realized the seriousness of the matter. Not only that, Jing Hanqing also received an infringement complaint when he logged into his self-media account. "They may want to blackmail me with trademarks and let me buy them back." Jing Hanqing said.

　　After Jing Hanqing’s experience was exposed, it immediately attracted the attention of many netizens and the solidarity of other bloggers and lawyers. Perhaps for fear that things would get worse, on August 5th, the company sent a third email to Jing Hanqing, and the tone was obviously softened: There is no point in tossing it over again. Leave a contact information to check with our agent. Next, we will give up sending you the trademark.

　　Online celebrity trademarks are frequently registered, and some companies specialize in malicious registration.

　　Jing Hanqing did not expect that his "positive" relationship with this company attracted many people in the same boat. After this incident, many talented people in online celebrity have come forward to speak out and said that they have encountered similar incidents.

　　The game blogger "Falling Star Commentary" has the same experience. This account has been in operation for 5 years, and has released short videos on multiple platforms, with 3 million fans.

　　Recently, "Falling Star Commentary" suddenly received a message from a company saying that its account has been registered as a trademark. What’s even more amazing is that the company that registered this trademark is the one that holds the "Jing Hanqing" trademark. In fact, this company has registered 103 trademarks in less than two years, most of which are online celebrity bloggers’ accounts.

　　The reporter sent an email interview to this company on August 4, and as of press time, he did not receive a reply from the other party.

　　In addition to Jing Hanqing and "Explanation of Falling Stars", many online celebrity, who has millions of fans, have also come forward to say that their accounts have been registered by different companies. In a WeChat group established by Jing Hanqing, more than 40 group members have the same experience, and more than one cybersquatting company is involved.

　　A blogger who asked not to be named said that he had been "blackmailed" into paying 350,000 yuan as a trademark transfer fee.

　　In fact, malicious cybersquatting has existed for many years, but in the past, it was mostly aimed at movie stars, enterprises and websites, and now such companies have turned their targets to online celebrity bloggers on various platforms.

　　The reporter inquired on China Trademark Network that the name "Jing Hanqing" has been applied for registration as a trademark by seven companies, and the earliest time can be traced back to May 2018, followed by May, June and August of 2018, and February, April and May of 2019, respectively. It was applied for registration by different companies.

　　Lawyer’s point of view: malicious cybersquatting can be invalid.

　　Wang Jingtao, a senior partner of Sichuan Sino-French Law Firm, said that at present, there are companies on the market that are looking for popular IP and rushing to register trademarks. After successful cybersquatting, these companies will launch "rights protection" to the cybersquatters, with the ultimate goal of benefiting from it.

　　Wang Jingtao said that he has taken over many similar complaints. "At present, the public’s understanding of the trademark market is not enough, and the trademark awareness is relatively lacking, which has led to some companies with ulterior motives taking advantage of it."

　　So, how to solve this kind of thing? Wang Jingtao suggested that it can be solved through legal channels. "If it can be judged that it is a malicious cybersquatting, you can apply for the trademark to be invalid."

　　However, in practice, safeguarding rights is not easy. There have been many cases before, in which the parties were registered for trademarks, and they chose to compromise because the cost of rights protection was too high.

　　Wang Jingtao reminded that everyone also needs to raise awareness of trademark registration. When registering platform accounts, it is necessary to register brand trademarks in advance to avoid such incidents from the source. (Reporter Shen Mengyu)

Author: Lin Mei

Editor: Bai Ze

Source: Mozi Salon

The century puzzle left by Einstein and Bohr to future generations

In the early days of the establishment of quantum mechanics, the phenomenon of "entanglement" aroused the curiosity of all physicists, and Einstein called it "strange interaction between distant places."The so-called entanglement in quantum mechanics is a phenomenon: two particles in an entangled state can maintain a special correlation state, and the state of both particles is unknown, but as long as one particle is measured, the state of the other particle can be known immediately, even if they are far apart.. In the past half century, the essence behind this phenomenon has been deeply puzzling scientists.

In the last century, the views on entanglement divided physicists into two factions: the Copenhagen school, represented by Bohr, believed that the so-called "reality" was meaningful only when it was connected with observation methods; But scientists such as Einstein can’t accept this view. They think that quantum mechanics is incomplete, and the measurement result must be predetermined by some kind of "hidden variable", but we can’t detect it. In 1935, Einstein, Podolsky and Rosen published an article entitled Can Quantum Mechanics Description of Physical Reality Be Considered Complete, demonstrating the incompleteness of quantum mechanics. Usually, people call their argument EPR Paradox or Einstein Localized Realism.

Bohr and Einstein argued about this for 50 years, and the problem was not solved until their final death, which has always attracted future generations to verify it.

How to verify it?

mentionLocalized realismIn fact, it contains two meanings:First, physical realism.Any observable physical quantity must exist objectively in a definite way, and if there is no external disturbance, the observable physical quantity should have a definite value;Second, localized causality.If the four-dimensional space-time between two events is space-like, there is no causal relationship between the two events. Based on this understanding, in 1964, the Irish physicist Bell put forward the famous "Bell Inequality", which established a strict limit on the possible correlation degree of the results when two separated particles were measured at the same time [1]. If Bell inequality is not established in the experiment, it means that the expectation based on localized realism does not conform to the theory of quantum mechanics, that is,The quantum world itself is probabilistic.

All along, people have designed various experimental schemes to verify whether Bell’s inequality is correct or not, and one after another, the results of some experimental groups tend to support the destruction of Bell’s inequality-that is, to prove the correctness of quantum mechanics. The first truly definitive experiment was made by Spector, a French physicist. Three experiments they made in the 1970s gave a clear conclusion about the nonlocality of quantum mechanics, but there were still loopholes in the initial verification of these experiments. In recent years, experimental groups in different countries have tried to gradually close local vulnerabilities, free choice vulnerabilities and detection efficiency vulnerabilities in their experiments.All the experimental results support the conclusion of quantum mechanics and prove that localized realism is wrong.

Bell inequality goes out of the laboratory and flies further.

The destruction of Bell inequality has been verified in the laboratory, so what about the situation on a larger scale? If people can verify the existence of quantum entanglement at a longer distance, it means verifying the correctness of quantum mechanics at a larger spatial scale. Therefore, people want to fly farther with Bell inequality. However, there is a stumbling block-attenuation when conducting experiments on a larger scale. What does this mean? In the actual experimentPeople often use an experiment called "quantum entanglement distribution" to verify Bell inequality, which is to send two prepared entangled particles (usually photons) to two points far apart, and to verify whether quantum mechanics and localized realism are right or wrong by observing whether the measurement results of the two points conform to Bell inequality.Because pairs of single photons are prepared and sent, the signal of single photon is not amplified because of the non-replicability of quantum, and the inherent photon loss of optical fiber makes it difficult to expand the optical quantum transmission to a longer distance. On the surface of the earth, the quantum entanglement distribution of 100 kilometers is almost the limit.

What should we do? There are two schemes,One is to use quantum relay.One relay station is a bit like an ancient relay station, transmitting photons one by one, but at present, the research of quantum relay is still limited by the time and efficiency of quantum storage;Another scheme is to realize quantum entanglement distribution by satellite.The vacuum environment in outer space has almost no attenuation and decoherence effects on light transmission. The free space channel loss between the satellite and the earth is small, and even in theory, scientists can establish a quantum channel between any two points on the earth by using satellites, and it is possible to realize quantum entanglement distribution at a long distance on a global scale.

On December 9, 2016, at the Ali Observatory in Tibet, researchers were doing experiments.

Fortunately, in this respect, Chinese is at the forefront of the world.

As early as 2003, China’s Pan Jianwei team put forward a scheme to realize long-distance quantum entanglement distribution by satellite, and started preliminary verification. The team’s researchers believe that in order to prove that it is feasible for satellites to realize quantum entanglement distribution, it is necessary to prove that photons can remain coherent after penetrating the atmosphere, so they began to do experiments in Dashu Mountain, Hefei. In this experiment, the sender is in Dashu Mountain, and the two receiving points are in Feixi farmer’s home and the west campus of Chinese University of Science and Technology, which are several kilometers away. It is the first time in the world to realize the two-way quantum entanglement distribution in free space with a horizontal distance of 13 kilometers (the vertical thickness of the atmosphere is about 5-10 kilometers), which proves that the entangled state can still "survive" after long-distance atmospheric channel transmission. On the other hand, this transmission distance exceeds the equivalent thickness of the atmosphere, which proves the feasibility of long-distance free space quantum communication.

Two-way quantum entanglement distribution in free space with a horizontal distance of 13 kilometers in 2005

In 2010, the team realized the 16 km quantum teleportation based on quantum entanglement distribution for the first time in the world. Based on the preliminary key technical preparations, at the end of 2011, the strategic pilot science and technology project "Quantum Science Experimental Satellite" of Chinese Academy of Sciences was formally established. In 2012, the joint research team of Chinese Academy of Sciences led by Pan Jianwei realized the first quantum entanglement distribution experiment of more than 102km in Qinghai Lake. In the experiment, the maximum attenuation is 80dB. On the one hand, it is verified that the entanglement characteristics still survive through the atmospheric channel on a larger scale, on the other hand, it is verified that the entanglement characteristics can be maintained under the condition of very large attenuation, which further verifies the feasibility of satellite-ground entanglement distribution.

In the following years, the team worked hard to overcome various difficulties and finally developed the "Mozi" quantum science experimental satellite. In the eyes of hundreds of millions of people, the Mozi was successfully put into orbit on August 16, 2016. After four months of on-orbit testing, it was officially delivered to carry out scientific experiments on January 18, 2017.

Mozi quantum science experimental satellite

As one of the three scientific experimental tasks of Mozi satellite, satellite-ground quantum entanglement distribution is the first quantum entanglement distribution experiment on the spatial scale in the world.

There are three optical payloads on the Mozi quantum science experimental satellite. Pairs of entangled photons are prepared by the quantum entangled light source and sent by two optical antennas. When the satellite transits the border, two telescopes point to Delingha and Lijiang ground stations respectively. The receiving systems of the two ground stations, according to the angular velocity of the satellite, make the satellite establish quantum channels with the two ground stations at the same time and send entangled photons to the ground stations.Then the ground station carries out entanglement measurement of photons, and if there are enough statistics, the Bell inequality can be verified.

In this experiment, the distance between the two ground stations is 1200 kilometers, the total distance from the satellite to the two ground stations is 2000 kilometers on average, the tracking accuracy of the ground station reaches 0.4 urad, and the receiving efficiency of the ground station system is more than 20%. The entanglement source on the satellite can generate 8 million entangled photon pairs per second, and the establishment of optical link can establish quantum entanglement between two stations over 1200 kilometers on the ground at the speed of 1 pair per second, so that a large number of statistical data can be obtained in a short time. If photons are transmitted by optical fiber over such a long distance, even if ultra-low loss optical fiber is selected, it will take 30 thousand years to distribute a pair of photons.

In the experiment, the two photons are pulled apart by a large enough distance, and at the same time, the high-precision experimental technology ensures that the independent measurement time interval between the two places is small enough, which meets the measurement requirements of "space-like interval" in Bell inequality measurement and closes the localization vulnerability and measurement selection vulnerability.The experimental results show that the standard deviation of 4 times violates Bell inequality, that is, the correctness of quantum mechanics is verified at a distance of thousands of kilometers with a confidence of over 99.9%.The nonlocality test of quantum mechanics which strictly satisfies Einstein’s localization condition is realized. This important achievement has laid a reliable technical foundation for the future experimental study of large-scale quantum networks and quantum communication, as well as the experimental examination of the basic principles of physics such as general relativity and quantum gravity in outer space.

Related achievements were published in the international authoritative academic journal Science in the form of cover papers.. In addition to the quantum entanglement distribution experiment, other important scientific experimental tasks of Mozi quantum science experimental satellite, including high-speed satellite-ground quantum key distribution, satellite-ground quantum teleportation and so on, are also under intense and smooth progress. It is expected that more scientific achievements will be released to the public one after another this year.

On November 28, 2016, at the Xinglong Observatory in Hebei Province, the "Mozi" quantum science experimental satellite transited.

Note:

[1]Bell inequality has many famous generalizations. Considering the practical factors of the experiment, five years after Bell inequality was put forward, John Clauser, Michael Horne, Abner Shimony and Richard A. Holt put forward a CHSH inequality, and the experiment of Bell inequality in later experiments was mainly to verify CHSH inequality.

[2] Space-like separation means that the space-time interval of two events satisfies that "it is impossible to communicate between two events with information below the speed of light.

Thanks to Associate Research Fellows Zhang Wenzhuo, Zou Mi and Li Dongdong of Hefei Microscale Laboratory of China University of Science and Technology for their help in writing this article.

On June 28th, BMW i4 eDrive35 was officially launched, with a price of 429,900 yuan. The appearance of the new car is equipped with an M sports suit, and the power is equipped with a battery pack with a capacity of 70 kWh. The cruising range of CLTC is 511 kilometers.

In terms of appearance, the overall shape of the new car is consistent with the eDrive40 model on sale, equipped with an M sports suit, and comes standard with personalized customized satin aluminum trim and exterior components. At the same time, i4 eDrive35 is also equipped with an 18-inch 858M dual-spoke two-color aluminum alloy rim, which is the same as i4 eDrive40. In terms of body color, the new car also continues the eDrive40 model, and comes standard with sapphire blue, mineral white, sunset orange, Portiman blue, San Remo green, Brooklyn gray and lapis lazuli red.

In terms of interior, i4 eDrive35 is also consistent with i4 eDrive40, with black, cognac and volcanic red Sensatec synthetic leather as standard. However, in terms of configuration, the keyless entry and automatic parking assistance system Plus and the BMW IconicSounds Electric electric vehicle sound wave simulation system, which are standard on the i4 eDrive40 model, have become optional on the i4 eDrive35 model, and the price has not been officially announced.

In terms of power, i4 eDrive35 is equipped with a ternary lithium battery pack with a capacity of 70 kWh and an excitation synchronous motor. The maximum output power is 210 kW, the maximum torque is 400 Nm, and the cruising range under CLTC standard is 511 km.