标签归档 西安耍耍

In the first half of the year, the consumer goods industry as a whole showed a trend of stabilization and recovery, and the consumer market gradually recovered.

CCTV News:The State Council Information Office held a press conference yesterday (July 19th). A spokesman for the Ministry of Industry and Information Technology said that in the first half of this year, with the in-depth implementation of the policy of expanding domestic demand and promoting consumption, the domestic consumption scene gradually recovered, the logistics level quickly rebounded, and the consumer market was gradually recovering.

Tao Qing, spokesperson of the Ministry of Industry and Information Technology and director of the Operation Monitoring Coordination Bureau:In the first half of the year, the consumer goods industry as a whole showed a trend of stabilization and recovery, and the output of electric bicycles, refrigerators, air conditioners and other products increased by double digits.

Tao Qing said that the Ministry of Industry and Information Technology will release and implement the work plan for the steady growth of light industry in the near future, focus on stabilizing key industries such as household products, plastic products, leather and food, fully stimulate the potential of domestic demand, actively promote export advantages, upgrade the modernization level of industrial chain, and accelerate transformation and upgrading, quality improvement and efficiency improvement. At the same time, we will continue to carry out production scheduling of key medical materials such as vaccines and drugs to ensure the normalized demand for materials. Accelerate the construction of centralized production bases for small-variety drugs, monitor the production and supply of short drugs, and ensure the orderly and stable supply of the market.

I can’t hear after catching a cold. The problem is not the ear, but the nose.

  "Doctor, doctor, I caught a cold and got angry a few days ago. My nose is stuffy and my throat hurts. But now I have recovered from my cold. Why do my ears always feel stuffy? Is it water in my ears? Could you please help me get it out? I can’t get it out myself … …”

  The above situation is often encountered by otolaryngologists in outpatient clinics. In fact, most of this situation is secretory otitis media, which is very common in our otolaryngology department. The most common causes are poor drainage of eustachian tube and upper respiratory tract infection.

  So, what is the eustachian tube? Eustachian tube is a channel connecting our ears and nasopharynx. It is normally closed, and it only opens when we open our mouths, swallow, yawn and sing, so as to keep the pressure balance inside and outside the middle ear and tympanic membrane.

  However, when we catch a cold and catch fire and get an upper respiratory infection, bacteria and viruses can also infect the middle ear from the nasopharynx and oropharynx through the eustachian tube, leading to our middle ear infection, commonly known as "otitis media". Patients with otitis media caused by upper respiratory tract infection generally have no ear pus, and most of them show a feeling of stuffy ears, accompanied by a slight decline in hearing. But it generally does not cause severe hearing loss.

  Patients sometimes feel that their hearing loss is not obvious, and they may only find it when they answer the phone with their left and right ears and feel that the sound is different. When you go to the hospital, the doctor will ask you about his medical history. Some patients may be complicated with allergic rhinitis, and they have been used to allergic rhinitis for many years, so they don’t think there is something wrong with their noses.

  In fact, only when patients control nasal diseases such as allergic rhinitis well, nasal ventilation will be better, and the effusion in the middle ear will slowly improve. Like a kitchen sewer, only when the sewer is open can the water on it flow down. The inflammation of our nose and throat is controlled, and the eustachian tube is unobstructed, so that the effusion in the middle ear can be slowly absorbed or drained through the eustachian tube and discharged through the pharynx.

  By giving the above patient an otoscope examination, it was found that his eardrum was intact, his external auditory canal was clean and there was no bath water. On the contrary, you can see that there is water in the eardrum through the eardrum. After more than a week of conservative treatment with nasal spray and oral mucus-promoting agent, the hearing of the patient has improved obviously and basically returned to normal level.

  Therefore, if we have sudden hearing loss after catching a cold, we should seek medical advice as soon as possible. Because the earlier the diagnosis and treatment, the easier it is to cure, and generally oral nasal spray hormone combined with mucus excretion promoter can be used. If it is delayed for a long time, the effusion will become thicker and thicker like egg white, which will easily form "glue ears", and the treatment effect will be poor, which may also affect hearing in the future.

  Text/Guo Bingyan (Beijing Geriatric Hospital)

Guangzhou vigorously supports the cross-border e-commerce industry park with the highest reward of 5 million yuan.

  A few days ago, the executive meeting of Guangzhou Municipal Government deliberated and adopted "Several Policies and Measures for Guangzhou to Further Promote the High-quality Development of cross-border electronic commerce" (hereinafter referred to as "Measures"), further promoting the stable scale and excellent structure of Guangzhou’s foreign trade and accelerating the cultivation of new advantages in foreign trade competition.

  Cultivating and introducing leading cross-border e-commerce enterprises, strengthening the construction of cross-border e-commerce industrial parks and strengthening the role of market players are the basis for promoting the high-quality development of cross-border e-commerce. The Measures support the development of cross-border e-commerce enterprises, select a certain number of cross-border e-commerce "Kirin" enterprises, and give a one-time reward to cross-border e-commerce enterprises that enter the list for the first time, with a maximum of 2 million yuan.

  At the same time, Guangzhou will also actively develop the "cross-border e-commerce+industrial belt" model and build a "one district, one characteristic" cross-border e-commerce industrial park. Select a certain number of cross-border e-commerce "Kunpeng" industrial parks (gathering areas), and reward the cross-border e-commerce industrial parks that enter the list for the first time, with a maximum of 5 million yuan.

  In terms of supporting cross-border e-commerce enterprises to carry out "brand going out to sea", Guangzhou will select a certain number of outstanding cross-border e-commerce "brand going out to sea" enterprises, and give them financial support that does not exceed 50% of the promotion expenses, and the amount of support for a single enterprise does not exceed 1 million yuan per year.

  Guangzhou will give full play to the advantages of the special customs supervision area and the Pilot Free Trade Zone, and expand the national railway freight trains from Guangzhou to the "Belt and Road". We will continue to expand the application of the "one port in the Bay Area" model and simplify the customs clearance procedures for foreign trade goods ports. If a cross-border e-commerce enterprise leases a special customs supervision area to carry out cross-border e-commerce business, it will be given financial support of not more than 30% of the rent, and the annual support amount of a single enterprise will not exceed 1.5 million yuan.

  In order to increase financial support for cross-border e-commerce, the Measures propose to support financial institutions to provide efficient, convenient and safe cross-border fund settlement services for cross-border e-commerce enterprises; Support banks to connect with China (Guangzhou) international trade single window sunshine foreign exchange collection and settlement system, and conduct online cross-border foreign exchange collection with China (Guangzhou) international trade single window export data; Support qualified foreign comprehensive service enterprises to collect foreign exchange for cross-border e-commerce, and encourage financial institutions to carry out cross-border RMB business.

  In terms of increasing the introduction of cross-border e-commerce talent training, the Measures encourage qualified ordinary universities, vocational colleges and technician colleges to set up cross-border electronic commerce majors, and provide policy support in terms of technical and technical talent training, professional curriculum setting, vocational skill level identification and platform construction of production-education integration training demonstration base.

  In 2023, the import and export volume of cross-border e-commerce in Guangzhou reached 200 billion, and the import and export scale of cross-border e-commerce in the city increased by 136 times in nine years, ranking first in the country for nine consecutive years. With the promulgation of the "Measures", the city card of "Cross-border E-commerce City" in Guangzhou will become brighter and brighter.

Global News | US stocks rose collectively, and Bank of America survey showed that global funds are optimistic about China stocks.

[US stock index]

On Tuesday, February 18, US Eastern Time, the three major US stock indexes closed higher, among which the S&P 500 index rose 0.24% to 6129.58 points. The Dow Jones index rose 0.02% to 44,556.34 points; Nasdaq index rose 0.07% to 20041.26.

American debt

On February 18th, the benchmark 10-year US bond yield was 4.55%, and the 2-year US bond yield, which is most sensitive to the Fed’s policy interest rate, was 4.29%.

[Hot American stocks]

Among popular US stocks, Apple fell 0.05%, NVIDIA rose 0.40%, Microsoft rose 0.30%, Amazon fell 0.89%, Google C fell 0.57%, Google A fell 0.79%, Meta fell 2.76%, Tesla fell 0.49%, TSMC fell 0.61%, AMD rose 1.04% and Intel rose 16.06.

[global index]

index Ups and downs PT France CAC40 0.21% 8206.56 FTSE 100 -0.01% 8766.73 Germany DAX 0.20% 22844.50 Russian RTS -1.40% 1123.91

[China index]

On February 18th, the Hang Seng Technology Index futures rose by 2.78% overnight, the Nasdaq China Jinlong Index fell by 1.28%, and the FTSE China A50 Index fell by 0.10%.

[China Stock Exchange]

In terms of popular Chinese stocks, Tencent Holdings (Hong Kong stocks) rose by 2.01%, Alibaba by 1.80%, Pinduoduo by 3.46%, Netease by 1.09%, Ctrip by 3.00%, Baidu by 7.51%, LI by 0.81%, Xpeng Motors by 4.92% and Weilai by 1.69%.

[foreign exchange commodities]

foreign exchange exchange rate Up and down (basis point) USD/RMB (RMB) 7.28 -5 bp Dollar/Euro 0.96 -3.1 bp USD/JPY 152.07 +50 bp

Commodity futures Ups and downs Latest price COMEX silver 1.83% 33.36 USD/oz COMEX gold 1.44% 2936.40 USD/oz west texas intermediate 1.33% 71.49 USD/barrel Brent crude oil 0.91% 75.32 USD/barrel LME copper -1.79% 9321.00 USD/ton

[Global News]

Bank of China survey: Global funds turn to be optimistic about international investors’ confidence in Hong Kong stocks.

The monthly survey of Bank of America Securities shows that the confidence of global funds in the Hong Kong stock market has greatly increased and reached the same level as the Nasdaq Composite Index. Strategist Michael Hartnett and others said in a report on Tuesday that 18% of the respondents predicted that the Hang Seng Index would perform best in the world in 2025 in the February survey, ranking second with Nasdaq. 22% of the respondents chose the EuroStoxx 50 index, ranking first. This is the first time that the HSI has entered the top three since the problem first appeared in November.

The White House clarified Musk’s identity and said that he was not an employee of the Government Efficiency Department.

Although the name Musk almost represents the newly established government efficiency department from the outside world, the White House clarified that Musk does not work for this department. Joshua Fisher, director of the White House Executive Office, said that Musk is a senior adviser to the President, and his authority is no higher than that of other White House spin doctor. (Sina Finance)

Federal Reserve Daley: Policy needs to remain tight.

Federal Reserve Daley said that the policy needs to remain tight until it is seen that sustained progress has been made in inflation. The Fed wants to be cautious before making the next adjustment. Inflation is gradually falling, but the process is relatively volatile. (Cailian)

Federal Reserve Daley: Supervision should help community banks flourish.

Daley, governor of federal reserve bank of san francisco, said that community banks are an important part of the economy, and their supervision should be adapted to their scale and risk level. "Community banks play a vital role in this ecosystem, supporting almost all parts of the United States," Daley said in a speech at the community bankers conference organized by the American Bankers Association in Phoenix. She said that central bank governors are "increasingly" hearing that the regulatory and supervisory framework is not suitable for the scale and risks of community banks. "The goal of supervision is not to eliminate all risks, but to ensure that banks properly manage risks." She said, "With the development of economy, well-thought-out and properly adjusted rules can ensure that banks of all sizes take appropriate risks and continue to flourish." Daley did not comment on interest rates or the economic outlook in his speech. (Sina Finance)

Bank of America survey: US stock market is overvalued

According to the global fund manager survey conducted by Bank of America in February, 89% of the investors surveyed believe that the US stock market is overvalued. The survey found that this is the highest level since at least April 2001. Bank of America said that in the past 10 years, an average of 81% of the fund manager investors surveyed have always believed that the US stock market is overvalued.

White House: Musk can only advise the president and convey the president’s instructions, and has no decision-making power.

The White House said in a court document on the 17th local time that the role of American entrepreneur Musk in the Trump administration is that of White House employees and senior advisers to the President, not employees of the Government Efficiency Department, and he has no decision-making power. The White House signed a document saying that Musk could only provide advice to the President and convey the President’s instructions. "Like other senior White House advisers, Musk himself has no actual or formal power to make government decisions." It says in the file.

Wang Huanyu returned to China to join Huazhong University of Science and Technology and participated in the research and development of three Apple M-series chips.

Recently, the personal homepage update information of official website, a teacher of Huazhong University of Science and Technology, shows that Dr. Wang Huanyu, who previously worked for Apple in the United States, has returned to China to join the School of Integrated Circuits of Huazhong University of Science and Technology as a professor and doctoral supervisor. Wang Huanyu has participated in the research and development of three Apple M series chips, among which the world’s first 3nm Apple M3 series chip and Apple M4 series chip have been released and listed. (The Paper)

Singapore said that it actually bought only a small number of NVIDIA chips.

Chen Shilong, the second minister of Singapore’s Ministry of Trade and Industry, told lawmakers on Tuesday: "From August to October 2024, the physical delivery of products sold by NVIDIA to Singapore accounted for less than 1% of its total revenue." He added that these products are mainly deployed in large enterprises and government agencies. Chen Shilong also pointed out that although NVIDIA attributed 22% of the sales in this period to Singapore, it was actually the place where NVIDIA customers received their bills. "Global entities usually issue bills for the goods and services they purchase in the hub area, but this is separate from the actual place where the products are shipped. According to our inspection results, this is indeed the case. " (Sina Finance)

The EU is preparing to make a decision on whether Apple and Meta will abide by the Digital Market Act next month.

EU Competition Commissioner Teresa Rivera said in an interview that the EU is preparing to make a decision on whether Apple and Meta Platforms will abide by the EU Digital Market Act next month, and is also investigating whether social media platform X violates EU regulations on illegal content. (Interface News)

The China Nonferrous Metals Industry Association is strongly dissatisfied with and resolutely opposed to the wrong approach announced by the US government to adjust aluminum import tariffs.

On February 10th, EDT, the US government announced that it would adjust the import tariff on steel and aluminum, resume the tariff on 232 steel and aluminum for global trading partners, and further increase the import tariff on aluminum products. Recently, the Federal Gazette published a tariff adjustment plan. China Nonferrous Metals Industry Association expressed strong dissatisfaction and resolute opposition. The United States has seriously violated the basic principles of the WTO, such as fair trade and non-discrimination. The WTO has already ruled that the tariff measures of US steel and aluminum 232 violate WTO rules, and the US side has not corrected them, but has made repeated mistakes, which will seriously damage the rights and interests of all countries and seriously undermine the multilateral trading system based on rules. (China Nonferrous Metals News)

FAW-Volkswagen New Energy Fancy Pet Customer "Volkswagen" was not disappointed.

I’ll bring this one to you today. Let’s take a look at it together.

Let’s take a look at the appearance of ID.4 CROZZ. The front face of ID.4crozz presents a young design style and looks cleaner and fresher. Coupled with elegant headlights, the visual effect looks quite dignified. The car is equipped with LED daytime running lights, automatic opening and closing, adaptive far and near light, automatic steering, delayed closing, rain and fog mode and so on. Come to the car side, the car body size is 4592MM*1852MM*1629MM, the car uses simple lines, the car body feels very domineering, with large-sized thick-walled tires, it looks full of sports. In terms of the rear end, the overall shape of the rear end of the ID.4 CROZZ echoes the front face, and the taillights are very soft, which is relatively clean and refreshing overall.

When I got into the car, the interior design of ID.4 CROZZ took a solid route and looked very delicate. The steering wheel design of the car is very calm, made of leather, and the palm fits well. From the central control point of view, the design of the center console is reasonable, which makes the interior design quite layered and looks very comfortable. The dashboard and the seat are also eye-catching, giving people a very personal feeling. The car uses a leather/suede mix seat. The seat is wide and thick, and the overall comfort and wrapping are not bad.

The ID.4 CROZZ is equipped with a motor with a total power of 230KW and a total torque of 460N.m The acceleration is good, the cruising range is equally excellent, and the power performance is good.

In terms of configuration, ID.4 CROZZ is equipped with car networking, driving mode selection, remote control key, rear wiper, interior atmosphere light and other configurations.

The ID.4 CROZZ introduced today is not only eye-catching in space, but also the configuration has reached the mainstream level, and there is nothing to be picky about driving experience and space experience. If you are planning to buy a car, then the car above is worth considering.

Double 11’s e-commerce war is just around the corner: Tencent will fully help JD.COM, and Baidu will provide traffic portals.

JD.COM announced the launch of the 11.11 Shopping Festival on November 1st.

Another year of "double 11" shopping festival is about to start.

On October 17th, JD.COM Group (NASDAQ: JD) said at the "Launch Conference of JD.COM Retail Innovation Strategy and 11.11 Global Good Things Festival" held in Beijing that this year’s "double 11", JD.COM and Tencent (00700.HK) will jointly launch China’s first online and offline integrated retail solution for offline brands, and also launch unmanned supermarkets, unmanned convenience stores, unmanned warehouses in the whole process, unmanned delivery trucks and smart supply chain merchants.

In other words, companies such as Baidu will provide traffic portals for JD.COM this time.

The shopping festival in JD.COM lasts from November 1st to November 12th. According to Han Rui, vice president of JD.COM Group, JD.COM will cover more than 200 countries and regions around the world this year. At the same time, not only online, JD.COM has more than 160 Jingdong Houses and JD.COM stores, nearly 200 JD.COM maternal and child experience stores, more than 1,700 Jingdong Gang service stores, more than 5,000 JD.COM household appliances stores, but also more than 400 Wal-Mart stores nationwide, nearly 10,000 stores of JD.COM cooperative brand merchants and hundreds of thousands of stores connected to Jingdong Treasurer.

JD.COM has always had a large number of male users, but this year, JD.COM will focus on serving female users on November 11th, and its luxury e-commerce platform TOPLIPE will be officially put into operation. At present, Shanghai luxury goods warehouse has also been opened.

WeChat "applet" will use JD.COM to realize closed-loop trading.

According to the cooperation plan, JD.COM will rely on Tencent’s social, content system and JD.COM’s trading system to create a retail solution with online and offline integration, deep customization of services and high integration of scene transactions for brand owners.

Wechat "applet" will also test its power in the e-commerce industry. According to reports, this time, we will realize the export of WeChat applet+JD.COM retail technology modularization ability, realize the deep integration of brand, JD.COM and Tencent, and create a closed loop of real-time exchange of rights and interests, full-scene promotion and full-platform transaction.

According to The Paper, during the period of 11.11, several retail giants will participate in the test of the scheme, covering thousands of offline brand stores.

In the past, consumers of a certain brand may browse and buy goods on the e-commerce platform, see the advertisements of this brand on social media, and go shopping in offline stores, but these three scenarios are completely isolated, user data cannot be integrated, and transactions cannot be synchronized.

According to reports, at present, Tencent’s social products, including WeChat, mobile QQ, Tencent News and Tencent Video, have occupied 60% of Chinese’s mobile phone browsing time. But in this scenario, no platform vendor or brand vendor has formed a complete data closed loop.

JD.COM and Tencent said that the two sides will fully integrate online and offline shopping and social media big data for the first time in the industry, and brands can accurately reach potential consumers in the scenes of Tencent and JD.COM, whether they put advertisements in JD.COM station, friends circle or WeChat official account, which is more accurate and greatly improves the conversion rate compared with the past. JD.COM and Tencent realized account integration and rights exchange.

In addition, JD.COM should reach a strategic cooperation with sogou before the congress. Together with Tencent, Today’s Headline, Baidu, Qihoo 360 and Netease in the previous Beijing X plan, JD.COM has formed an alliance with several "big traffic users" in the Internet industry.

Unmanned warehouses, unmanned trucks and unmanned shops appeared.

Ma Song, Senior Vice President of JD.COM Group, said that during the period of November 11th, unmanned convenience stores and supermarkets independently developed by JD.COM will officially open in JD.COM Global Headquarters Park.

At the press conference, JD.COM also launched a number of scientific and technological products in one breath, including unmanned warehouses, unmanned trucks, unmanned supermarkets, unmanned convenience stores and smart supply chain open platforms.

Jingdong Smart Store Technology System behind unmanned convenience stores is the world’s first modular assembled smart store system, which includes modules such as "smart shelves", "smart sensing cameras", "smart weighing and settlement desk" and "smart billboards", which can be flexibly combined to adapt to various application scenarios such as supermarkets, convenience stores, gas stations, airports and hotels. Unmanned supermarkets have created a complete unmanned store scheme with full scene, take and go, and digital operation through technologies such as face recognition and image recognition, which effectively promoted the cost, efficiency and user experience optimization of offline stores.

Jingdong Logistics Group teamed up with JD.COM Y Division to create an open platform for smart supply chain merchants, which helps merchants to intelligently predict consumer demand, intelligently arrange inventory and replenish goods, intelligently schedule production, what to sell, how to sell, how to arrange inventory, and when to deliver it to customers.

In addition to unmanned stores, the world’s first full-process unmanned warehouse independently developed by JD.COM will also be put into use in Shanghai during November 11th. The whole process of unmanned warehouse has realized the whole process from warehousing, storage, packaging and sorting, and the whole system is intelligent and unmanned, with the ability to handle 200 thousand orders a day.

In addition, during the shopping festival on June 18th this year, the operating scope of UAVs and distribution robots that have been officially operated in JD.COM has been further expanded. At present, JD.COM’s drones have opened dozens of routes in Xi ‘an, Suqian and other places, flying tens of thousands of kilometers, and distribution robots have been intensively tested.

Double 11 will have a fierce battle in the field of logistics this year.

Alibaba’s rookie network released the flagship warehouse of the world’s leading super robot on October 17. The rookie said that hundreds of robots can deliver more than one million pieces in a single day, which will provide logistics services for consumers in South China. Like this warehouse, rookie is online in Shanghai, Tianjin, Zhejiang, Guangdong, Hubei and other places. This is the first time in the world to use robot warehouse group operations on such a large logistics volume.

More than 20 million days of transportation capacity covers the urban and rural areas.

The supply chain will also be upgraded.

Fu Bing, vice president of JD.COM Group and head of Jingdong Logistics Planning and Development Department, said that Jingdong Logistics has the only six logistics networks in the world, namely, small and medium-sized pieces, large pieces, cold chain, B2B, cross-border and crowdsourcing, which will fully support the promotion during November 11. The total daily capacity of the six networks exceeds 20 million parcels, covering all urban and rural areas in China. In addition, JD.COM will mobilize more than 5 million logistics personnel, and tens of thousands of vehicles on more than 20,000 transportation lines will start rolling around the clock.

Jingdong Logistics will also deploy more local warehouses in third-and fourth-tier cities with the help of big data, and use various online and offline stores in JD.COM to promote the "front store and back warehouse" model. On November 11th this year, JD.COM also built a "Jingdongbang Mobile Warehouse" specially for rural consumers, and deployed large-sized goods suitable for the rural market to the "Jingdongbang Service Store" nearest to consumers in advance, so as to achieve the fastest three-hour speed in rural areas and enhance the user experience of villagers.

In addition, Jingdong Logistics integrates social resources such as major brands and stores, realizing online and offline inventory sharing of merchants and delivering goods from stores nearby. At present, JD.COM has cooperated with Wal-Mart to pilot "inventory interoperability". During November 11th, Wal-Mart supermarkets all over the country will be transformed into warehouses in JD.COM.

During the period of 11.11, Jingdong Logistics will also put about 200,000 fresh cold chain intelligent incubators into operation. This indicates that Jingdong Logistics has established an intelligent monitoring system for the whole process of fresh cold chain logistics.

Breathing through your mouth will make you "stupid and ugly"! Measure how you breathe.

  Editor’s note:"Good health is the capital of revolution", but in busy life, people are often busy with work and eager to socialize, but they ignore the geomantic treasure of good health. In fact, with a little attention and early prevention, health is around us. People’s Health Network launched the column "Know early and know early" to collect and sort out the health knowledge that you usually ignore, be your health think tank, and carry out health with you to the end!

  Breathing through your mouth will make you "stupid"

  Breathing with your mouth open doesn’t mean that you can breathe in more oxygen. On the contrary, it will affect your breathing because of the wrong way of breathing, which will oppress your nose and leave your brain in a state of hypoxia. If the oxygen intake is not enough, the quality of sleep will be poor, people will easily doze off during the day, lose concentration, and even their intelligence will be slightly affected.

  Especially for children under the age of 14 who are in the period of growth and development, their physical development and the development of the nervous system and brain will be affected. If they miss the critical development opportunity, their memory will be reduced, their thinking will be inattentive, their reaction will be slow, and they may gradually become "stupid".

  As long as children are found to be breathing through their mouths when they are sleeping, watching TV and staring blankly, parents must pay attention. One more thing, children sleep very noisily at night, tossing and turning, and even snoring, which is also a danger signal. Parents must take their children to see a doctor in time to find out what causes them to breathe through their mouths.

  Do you breathe through your mouth when you sleep?

  How to judge how you breathe? The Japanese Physical Maintenance Association wrote an article introducing the common manifestations of patients with oral respiration. Everyone can test themselves, which is more consistent, and some adjustments should be made during sleep.

  When unconscious, the mouth is half open; Dry lips; When I wake up in the morning, my throat hurts burning; Unable to consciously move the nostrils; Relax and look in the mirror, and the corners of your mouth are always downward; Make a slurping sound when eating; Snoring; The thickness difference between upper and lower lips is large; The lower lip "covers the sky"; Irregular or protruding teeth; Used to chewing with unilateral teeth.

  Compared with nasal breathing, oral breathers have seven adverse consequences: the virus directly enters the mouth without passing through the nasal cavity, and they prefer to catch a cold; Easy to dry in the mouth, less saliva and heavy bad breath; There is little saliva containing bactericidal ingredients, and I like to grow worm teeth; Pressing the throat during sleep, easy to snore, poor sleep quality; Hinder the growth and development of teenagers’ chins, and make the teeth arranged unevenly; Affect facial muscles and bones, making the face crooked; The sense of smell is the oldest sensory nerve, which is directly connected with the brain. Without air passing through the nasal cavity, the olfactory function of the brain will be dulled.

  Patients can try to adjust their sleeping posture instead of lying on their backs; Don’t be too tired when exercising, choose the intensity that can make you gasp without opening your mouth; When sleeping, you can put special tape on your mouth.

  Mouth breathing may "destroy the face value"

  Mouth breathing has a great influence on a person’s face, which can’t be ignored, especially during the growth and development of teenagers’ faces.

  First of all, there are two main reasons for mouth breathing: one is that the upper respiratory tract is blocked, and sinusitis, nasal polyps, turbinate hypertrophy, adenoid hypertrophy, tonsil hypertrophy, etc. cause respiratory tract blockage, so that you can’t breathe through your nose, but you can only breathe through your mouth; In another case, there is no disease, which is simply caused by bad habits.

  If infected in childhood, the adenoids become swollen and inflamed, which may cause permanent hypertrophy of the adenoids. Adenoid hypertrophy will hinder nose breathing and affect the excretion of sinus, which is easy to suffer from sinusitis. Tonsils and adenoids are enlarged in childhood, reaching the peak at the age of 6 to 8, but with the increase of age, their volume will gradually shrink and generally degenerate at the age of 12.

  If teenagers have some diseases of nasal cavity or adenoid tonsil, it will lead to poor nasal ventilation and then oral breathing. Mouth breathing has changed people’s original way of breathing, which makes the nasal cavity unable to ventilate normally and causes abnormal development. If the nasal cavity can’t breathe normally, people can only open their mouths to breathe, which will change the normal position of oral tissues. Changes in the position of lips and tongue will cause changes in teeth and maxilla. When breathing with the mouth open, the strength of buccal muscles on the dental arch will easily lead to the narrowing of the dental arch and abnormal tongue position, and the strength of buccal muscles on the maxillary dental arch will be strengthened, and the maxillary dental arch will gradually become narrow, and the upper teeth will lean forward, eventually forming buck teeth.

  Raise your lungs and do more breathing exercises in autumn and winter.

  Autumn and winter are the periods of high incidence of respiratory diseases, including colds, acute bronchitis, acute attack of chronic bronchitis and pneumonia. Breathing exercises can improve the symptoms of chest tightness, shortness of breath, dyspnea and wheezing in patients with respiratory diseases, realize the adjustment and entry of breath in the body, improve the function of human viscera, and thus improve the immunity of the body. Clinical research shows that breathing exercises can obviously restore lung function.

  There are seven sections of breathing exercises, and the specific methods are as follows:

  Lip contraction breathing

  Objective: To prevent the small airway from trapping and narrowing during exhalation, so as to facilitate the discharge of air in alveoli.

  Methods: Inhale with the nose, close your lips lightly when exhale, and exhale slowly, with your mouth whistling.

  abdominal respiration

  Objective: To enhance diaphragm strength, reduce airway resistance, increase tidal volume, and improve hypoxia and carbon dioxide retention.

  Methods: Put your right hand on your belly button and your left hand on your chest. When inhaling, expand the abdomen outward to the maximum extent and keep the chest still. When exhaling, contract the abdomen inward as much as possible and keep the chest still.

  Hold one’s breath

  Objective: To prolong the exchange time of oxygen and carbon dioxide in lung and make more oxygen enter the blood.

  Methods: Inhale, hold your breath for 3 seconds, turn your head to the right and exhale. Inhale, hold your breath for 3 seconds, turn your head to the left and exhale.

  Stretch breathing

  Objective: To increase lung function and relieve shoulder and neck pain.

  Methods: straighten your arms, raise your head forward and upward gradually, and inhale deeply at the same time; Then put your arms together, lean forward and exhale deeply. (Note: Try to breathe by abdomen. )

  Press and knead to welcome incense.

  Objective: To relieve rhinitis, toothache and cold.

  Methods: Flex the thumb with both hands and massage Yingxiang point with the first knuckle (Yingxiang point is opened next to the midpoint of the outer edge of the nose, which is in the nasolabial groove).

  Push the wind pool

  Objective: To relieve headache, neck ache and stiff neck.

  Methods: With the palm of your hand spread out, push the ipsilateral posterior occipital Fengchi point with the side of the little finger joint or thenar respectively (Fengchi point is parallel to the earlobe on both sides of the major tendon behind the head and forehead), commonly known as pushing the major tendon to achieve a sense of pain.

  Chest percussion

  Objective: With the help of the vibration and gravity produced by tapping, the secretions stranded in the airway can be discharged.

  Methods: The fingers of both hands were bent together to make the palm of the hand cup-shaped, and the chest wall was rapped rhythmically with wrist strength.

  Relieve anxiety and try abdominal breathing.

  When we are nervous and anxious, not only the brain will be nervous and anxious, but also the breathing will become rapid, especially the heart beating will be accelerated. If we can take certain measures to make our breathing smooth first, then our heart will calm down and our emotional tension and anxiety will disappear.

  Abdominal breathing relaxation training can achieve this goal.

  Abdominal breathing relaxation training is to focus on the abdomen and breathe with it, so that the chest and lungs can be filled with more oxygen. There are six steps in the training process:

  The first step is to find a quiet place. When practicing, you can sit, stand or lie down with your eyes open or closed. Try to make yourself feel calm and comfortable.

  The second step is to focus your thoughts on your abdomen (from the third centimeter below the navel to the abdomen) and focus on your breathing. Then, put a hand on the abdomen, slowly take a long breath through the nasal cavity, and slowly count from 1 to 5 in your heart.

  Step three, when you take a long breath slowly, try your best to expand your abdomen and imagine a balloon being filled with air. To a certain extent, you will feel that your lung tips will be filled with air.

  Step 4: Hold your breath slowly, and then say 1, 2, 3, 4 and 5 in your mind.

  The fifth step is to exhale slowly through the nasal cavity, while meditating 1, 2, 3, 4 and 5 in your mind. When exhaling, you should slowly contract your abdomen. Imagine a balloon deflating. You can slowly bend down to exhale to 90 degrees, and make sure that the air in your lungs is completely exhaled. You feel that your front abdomen and back are about to touch.

  The feeling that the air is completely spit out is like suffocating, so you have to inhale quickly.

  Step six, repeat the above process for seven times.

  Anxious people can initially choose a fixed period of 2 ~ 3 times a day to practice, and after mastering the skills and reaching a relaxed state, they can do this kind of training anytime and anywhere. (People’s Health Network is integrated from Life Times, Health Times, Health News, Nanfang Daily)

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Be alert! It only takes 67 seconds to make a fake chat record.

  Open the software, set the avatar and nickname, and you can create WeChat conversations, transfer records and even screenshots of friends — — In online search engines and mobile app stores, chat record generation tools such as "WeChat conversation generator" and "QQ conversation generator" spread wildly. These confusing gadgets are not only used by Wechat business to deceive consumers, but also provide convenience for criminals to forge screenshots to manipulate public opinion.

  Experts said that making false screenshots will cause trouble on the Internet and disrupt social order, and those with serious circumstances will face criminal punishment. Software publishers who fail to remain neutral and encourage, abet and add fuel to the flames in the process of dissemination will also be regarded as accomplices and bear corresponding legal responsibilities.

  Case: False screenshots spread rumors

  A few days ago, Weibo, a child suspected of being sexually assaulted in an orphanage in Guizhou, detonated the network, arousing public anger.

  According to the poster, in Bijie, Kaili and other places in Guizhou Province, young children in welfare homes and kindergartens for left-behind children were sexually assaulted. However, Guizhou public security investigation found that the so-called photos of "underage children being sexually assaulted" spread on the Internet were all forged after the poster collected them from the Internet, and the whole incident was fabricated.

  Why does an unfounded rumor convince many netizens? This is inseparable from the poster’s fictional WeChat chat record. In the screenshot, a chatterbox said that it is "a business" to spend 100,000 yuan on this matter every year. Another screenshot shows that the suspected "windmill kindergarten" staff member "Chen Likun" and another person are talking about injecting hormones into young children.

  As a result, the detailed and realistic chat record has become a "sharp weapon" for spreading rumors.

  "There are avatars and transfer records on it, and even the WiFi signal is clearly displayed, exactly the same as my WeChat page!" After the rumor incident in Guizhou was officially rumored, some netizens pointed out that the chat record generation tool condoned evil and confused people. "Who would have thought that even chat records could be faked?"

  After searching for public information, the reporter found that the use of forged screenshots of chat records to spread online rumors and manipulate public opinion has occurred many times before. Screenshots of chat records with "pictures and truth" have captured the curiosity of many netizens and the herd mentality of "believing in it or not", which has become one of the carriers of online rumors.

  Test: A record is released in 67 seconds.

  Compared with the uproar caused by using fake dialogue records to create rumors, the low cost of fraud is unimaginable. As long as it takes 67 seconds and 90 yuan money, you can make a fake record exactly like the online rumor.

  Although the official has warned that the screenshot record is not credible in multiple channels, both Apple and Android platforms can find a large number of apps with the function of "chat record generation". After downloading one of the "Dialogue Generator" softwares, the reporter found that it can make multiple functional pages such as WeChat chat, group chat, transfer, change, red envelope, video chat, circle of friends and so on, and can also make Alipay transfer records.

  Subsequently, the reporter took a fake screen shot that was popular on the Internet as an example, and uploaded five conversation records, a photo and the heads of both sides of the conversation. It took only 67 seconds from setting the avatar and creating the nickname to the final fake screenshot of WeChat.

  In addition to the fake text and picture dialogue, even the system prompts such as sending and receiving red envelopes and adding friends can be faked, and even a fake screen shot of transferring 100 million yuan a day can be made under the condition that the real WeChat transfer limit is 200,000 yuan a day. Some software can also edit the operator, WiFi signal, battery power, time and other information in the mobile phone status bar at will.

  An Internet source said that there were a lot of such tools around 2015. At the beginning, most users were Wechat business, marketing number, etc., and most of them were free software. However, the reporter found that these apps are basically charging now, forming a "gray industry" with unclear legal definition at present. For example, in the dialogue generator, the page generated by the reporter has a watermark, and only those who pay for the package can remove the watermark and make the screenshot "more real". The cheapest package is 3-month 90 yuan, and the permanent membership package is 328 yuan, which will be used until 2029.

  So, how much are these apps used? Take the existing apps in APPle App Store as an example. The most popular "Wechat business Screenshot King" software has as many as 11,000 ratings and comments, and the least is 1,760.

  Wechat business Xiaoai, who runs a "private cake" in a circle of friends, told reporters that she had exposed many fake screenshots. "When I first opened the business, no one bought it. I made a few screenshots of transferring money and praising the delicious cake every three to five times, which was quite attractive." Xiao Ai said that it is the "convention" of Wechat business industry to attract customers with false records.

  Vigilance: encouraging crime to bear legal responsibility

  "The illegal behaviors caused by forging screenshots of chat records can be mainly divided into two categories." Hu Gang, Deputy Secretary-General of the Legal Work Committee of internet society of china, said that one kind is for business purposes, for example, Wechat business made false chat and transfer records and sent them to friends for advertising. "This behavior is suspected of false propaganda, which not only violates consumers’ right to know, but also disrupts fair market order."

  Hu Gang said that what is more serious is the behavior of individual criminals who forge screenshots of chat records to create topics on the Internet, stir up trouble and disrupt social order in order to gain attention or vent their feelings.

  "In the past, people always said that seeing is believing, so the majority of netizens were less alert to the rumors of chat recording. But with the current information technology, even dynamic video fraud is easy. " Hu Gang said that once public opinion is used, it may have serious consequences. This requires relevant departments to launch effective new measures in a timely manner, and also requires netizens to raise their awareness of vigilance and not be credulous or blindly obedient.

  In addition, although this kind of software claims that it is only used by netizens for entertainment, you can clearly see some leading words such as "Wechat business must have" and "Wechat business marketing tool" on the software promotion page. "This means that it has entered the category of network gray production." In the opinion of experts, if a software publisher can’t maintain enough neutrality, but encourages, abets and fuels illegal activities in the process of communication, it will be regarded as an accomplice and bear corresponding legal responsibilities. (Reporter Chen Xuening)

Answers to Questions about the Work Plan of Epidemic Prevention and Control in COVID-19 during the Spring Festival of New Year’s Day in 2022

1. The "two festivals" are coming soon. What prevention and control requirements should be paid attention to for residents returning home and going out?

During the "two festivals", in order to effectively control the risk of epidemic spread and diffusion, ensure that the broad masses of the people spend a healthy, safe and peaceful festival, and strengthen the safe and orderly flow of personnel, the Work Plan for Epidemic Prevention and Control in COVID-19 during the Spring Festival of New Year’s Day in 2022 (hereinafter referred to as the "Work Plan") puts forward clear requirements for the travel of personnel flowing across provinces. Considering China’s vast territory, different natural and socio-economic conditions in different places, and differences in epidemic situation, transmission risks and prevention and control priorities, all provinces (autonomous regions and municipalities directly under the Central Government) should formulate travel requirements for people within their respective jurisdictions according to the local epidemic situation and actual situation and in accordance with the requirements of scientific and precise prevention and control, and release them to the public. Please pay attention to the travel requirements during the "two festivals" and consciously implement the epidemic prevention and control measures.

2. If an epidemic occurs in the county (city, district, flag) where a resident lives, can he go out?

After the occurrence of local epidemic, the local county (city, district, banner) personnel strictly restrict travel, and implement the requirements of local epidemiological investigation, risk personnel investigation, nucleic acid detection, health monitoring and community prevention and control.

If it is really necessary for people to travel when performing specific official duties and ensuring the transportation of production and living materials, they must hold a negative certificate of nucleic acid detection within 48 hours with the approval of the local joint prevention and control mechanism, do a good job in personal protection during the journey, and abide by the provisions on epidemic prevention and control at the destination. The local joint prevention and control mechanism shall announce the approval requirements and procedures.

3. Can people from other epidemic-free counties (cities, districts and banners) in the cities where the medium and high-risk areas are located travel? If you go out, what management rules and requirements do you need to abide by?

After the occurrence of a local epidemic, people from other non-epidemic counties (cities, districts and banners) in the city where the medium and high-risk areas are located do not travel unnecessarily, and cooperate with epidemiological investigation and risk personnel investigation as required; If you really need to travel, you must hold a negative nucleic acid test certificate within 48 hours, do a good job in personal protection during the journey, and abide by the provisions on epidemic prevention and control at the destination.

4. During the two festivals, can I go to the counties (cities, districts and banners) where the middle and high-risk areas are located?

In order to prevent the risk of infection, travel to medium and high-risk areas and counties (cities, districts and banners) is strictly restricted, and those who have already traveled must abide by local epidemic prevention and control regulations.

Personnel who really need to go to perform specific official duties and ensure the transportation of production and living materials shall be implemented in accordance with relevant local prevention and control policies and regulations.

It is not necessary to go to other counties (cities, districts and banners) in the city where the medium and high-risk areas are located, and the personnel who have already gone must abide by the local epidemic prevention and control regulations.

5. During the "two festivals", will the travel of people in high-risk positions be restricted?

People in high-risk positions have more opportunities to contact infected people, virus-contaminated items and the environment during their work. If the protection is not in place, the risk of infection is higher. Recently, some places in our country have been infected by porters engaged in imported goods at ports and workers at centralized isolation points, and some places have even caused the spread and spread of communities.

Relevant departments, enterprises and institutions should register high-risk post personnel who come into contact with entry personnel, articles and environment at ports, as well as high-risk post personnel in centralized isolation places, designated medical institutions, fever clinics and imported cold-chain food processing enterprises, and strictly implement measures such as standardized protection, closed-loop management, high-frequency nucleic acid detection and zero report of daily health monitoring during their work.

During the "two festivals" period, personnel in high-risk posts should try their best to avoid traveling, and if they really need to travel, they should report to their work units to meet the conditions of leaving their jobs for more than 14 days and holding negative nucleic acid test certificates within 48 hours. Do personal protection during the trip and abide by the epidemic prevention and control regulations at the destination.

6. Can I travel with respiratory symptoms such as fever and cough?

Before traveling, if you have respiratory symptoms such as fever and cough, you should temporarily suspend your travel plan to avoid aggravation of travel fatigue symptoms, and seek medical advice in time, and then arrange travel after recovery. Do personal protection during the trip and abide by the epidemic prevention and control regulations at the destination.

7. What impact does the health code have on travel when it becomes a "yellow code"?

Health code "yellow code" personnel should fulfill their personal prevention and control responsibilities and obligations, actively cooperate with local health monitoring and nucleic acid detection, and avoid going out. After the health code is changed from "yellow code" to "green code" and there are no abnormal symptoms, you can travel normally. Do personal protection during the trip and abide by the epidemic prevention and control regulations at the destination.

8. What are the specific arrangements and requirements for college students to return to school or migrant workers to return to work after the winter vacation or the Spring Festival?

There are a large number of college students with wide sources and centralized accommodation; Some enterprises have many migrant workers and crowded workplaces. Once the source of infection is introduced, universities and enterprises are prone to cluster epidemics, which will spread rapidly in a short time.

In order to reduce the risk of the epidemic and avoid the concentration of people when returning to school, colleges or enterprises are encouraged to arrange peak-to-peak return to school; According to the actual situation, students or migrant workers may be required to hold a negative nucleic acid test certificate within 48 hours when they return to school or work.

9. During the two festivals, can you organize gatherings such as banquets? Is there a limit to the scale?

Recently, after the local epidemic occurred in some places, the epidemic spread rapidly through crowd gathering activities such as dinners, wedding banquets and funerals.

In order to reduce the risk of epidemic spread, during the "two festivals", we should strictly control temple fairs, large-scale cultural performances, exhibitions and promotions, try not to hold large-scale gathering activities, family dinners and gatherings with no more than 10 people, and advocate "delaying the happy events, keeping the funeral simple, and not holding banquets". If it is really necessary, we should minimize the scale of activities. Individuals who hold dinner activities such as banquets with more than 5 tables by themselves must report to the local community neighborhood committees or village committees to implement the epidemic prevention and control regulations. Avoid holding large-scale personnel gathering activities in towns and villages that arrive at the border.

10. What protective measures should individuals pay attention to during the "two festivals"?

During holidays, the public should strengthen self-protection and wear masks in closed places such as public transport, elevators and outdoor places where people gather. Pay attention to wash your hands frequently, cover up when coughing or sneezing, and keep a social distance of more than 1 meter. Indoor windows are often opened for ventilation to keep the air circulating. People aged 60 and above and patients with severe chronic diseases should try to reduce going to crowd gathering places.

The Beauty of Science: How China’s Heavyweight Measure the Vast Universe

"What day stack? Twelve points? Sun, moon and security? Li Xing An Chen? " -Qu Yuan’s "Tian Wen"

Is there any margin in the vast starry sky? Is there extraterrestrial life in the vast universe?

Guo Shoujing telescope (LAMOST), Five-hundred-meter Aperture Spherical Radio Telescope (FAST) (FAST), high-altitude cosmic ray observatory (LHAASO) and China’s three "sky-watching heavyweights", what cosmic whispers have you heard?

On the stage of "Science and Technology New Year Show" in 2024-"Science Night" at the main station, the speech and dance of "Beauty of Science" were specially presented. In order to present the breathtaking beauty of science in more dimensions, the Social Education Program Center of the General Station plans to launch the extended brand "Science Night" of the General Station-"Beauty of Science". The film is under the professional guidance of China Association for Science and Technology.

With the theme of five natural mysteries, The Beauty of Science (the first season) invited six academicians of China Academy of Sciences: Wang Enge, a physicist and former president of Peking University, Cui Xiangqun, a lichen mycologist, Muming Poo, a neurobiologist and biophysicist, Luo Qingming, a bioimager and president of Hainan University, and Cheng Heping, a cell biologist and biophysicist, to share their understanding of the beauty of science. It presents a pure, extreme and gorgeous visual spectacle by combining ultra-microscopic photography, scientific experiments and field visits. Record the symbiosis of science and art, and sing the symphony of wisdom and sensibility.

As early as the ancient times, the vastness and magnificence of the Milky Way aroused the infinite curiosity of mankind. CCTV-10 will broadcast the third episode of "The Beauty of Science" at 21:20 pm on Sunday (April 27th). Astronomer and Academician Cui Xiangqun of China Academy of Sciences will explain how Guo Shoujing Telescope (LAMOST), Five-hundred-meter Aperture Spherical Radio Telescope (FAST) (FAST) and high-altitude cosmic ray observatory (LHAASO) can explore hidden in the starry sky.

Guo Shoujing telescope LAMOST:

The "gene sequencing officer" of cosmic celestial bodies

When the stars light up the night sky, at the top of the mountains in Xinglong County, Hebei Province, "Starcatcher" LAMOST quietly wakes up. Behind the mirror, 16 spectrometers were started synchronously, and 4,000 optical fibers were precisely arrayed, locking 4,000 target celestial bodies one by one, and splitting the light from celestial bodies into spectra with different wavelengths, which were recorded and archived by 32 CCD cameras independently developed by China.

△LAMOST opening moment

△ beautiful starry sky

LAMOST’s mission is not to shoot the beauty of the starry sky, but to decode the truth of the universe hidden in the starlight. The light emitted by each star has a unique spectrum, which is like a gene fragment of a cosmic celestial body and records the unique identity information of each celestial body.

As the largest spectral survey telescope in the world, LAMOST is building a cosmic archive for the stars at the speed of scanning tens of thousands of cosmic objects every night.

△ Guo Shoujing telescope LAMOST

LAMOST is called "large-sky-area multi-target optical fiber spectrum astronomical telescope", named after Guo Shoujing, an ancient astronomer in China. Since the launch of the sky survey program in September 2012, LAMOST has observed the spectra of more than 25 million cosmic objects. The more we know about the stars in the universe, the more data we can provide for the future exploration of the universe, and let mankind take a step closer to the vast starry sky.

△ Academician of China Academy of Sciences Cui Xiangqun

Cui Xiangqun, an astronomer and academician of China Academy of Sciences, said: "We developed telescopes to observe increasingly dark and distant celestial bodies. We are pursuing a limit, and the universe that human beings realize is getting closer and closer to the truth of nature. "

"Five-hundred-meter Aperture Spherical Radio Telescope (FAST)" FAST:

Listen to the "heartbeat" of the universe

In 2021, a series of intermittent radio signals received by Five-hundred-meter Aperture Spherical Radio Telescope (FAST) FAST excited many astronomers. These mysterious signals from outer space were repeated 1652 times in 47 days, and some even speculated whether they came from alien life. Scientists have analyzed that these signals come from distant space 3 billion light years away.

Although FAST is called "Five-hundred-meter Aperture Spherical Radio Telescope (FAST)", its task is not to look at the stars, but to "listen" to the universe. Just as bats can tell the direction with their own ultrasonic waves, FAST can obtain information about the universe through electromagnetic waves.

△ "Five-hundred-meter Aperture Spherical Radio Telescope (FAST)" FAST

The full name of "Five-hundred-meter Aperture Spherical Radio Telescope (FAST)" FAST is "500-meter spherical radio telescope". As the largest radio telescope in the world, the detection distance of FAST is almost close to the edge of the universe.

Since its official opening in 2020, FAST has discovered more than 1,000 pulsars. These "lighthouses" in the depths of the universe mark the deep space coordinates for human beings with special pulses and stable rotation frequency. In the future, when the "lighthouse coordinate system" covers a wider interstellar space, it will become the "cosmic GPS" for interstellar travel, guiding the spacecraft through the dark territory of light-year scale.

△ "Five-hundred-meter Aperture Spherical Radio Telescope (FAST)" active reflector

Why can FAST "listen" so far? The answer lies in the "big eyes" surrounded by mountains in Guizhou: the super reflective surface of FAST can be stretched from a sphere to a paraboloid; Six 100-meter steel towers lock deep space signals with 10 mm accuracy, and gather weak signals hundreds of millions of light-years away into focus.

△ "Five-hundred-meter Aperture Spherical Radio Telescope (FAST)" FAST

High altitude cosmic ray observatory "lasso" (LHAASO);

The mysterious "cosmic post office" on the plateau

△ "lasso" panorama

△ "Lasso" at night

At 21: 20: 50 on October 9, 2022, more than 60,000 gamma photons were recorded by Lasso, which was the afterglow of a star funeral 2 billion light years away. A giant star with a mass 20 times that of the sun collapsed after running out of nuclear fuel, releasing a "cosmic fireworks" gamma-ray burst lasting several hundred seconds.

On the detector array of Lasso, the moment when "cosmic fireworks" splashed was collected. This is the first time that human beings have completely recorded the "life cycle" of the trillion electron volt gamma ray burst from birth to annihilation. Because such events happen once in a blue moon, the data of Lasso will remain the "best observation record of the universe" in the next hundred years.

△ Simulation animation of gamma-ray bursts reaching the Earth

"Laso" stands on the 4410-meter plateau in Daocheng, Sichuan. It is not a telescope in the traditional sense, but a "cosmic post office" composed of 5,216 electromagnetic particle detectors, 1,188 Muzi detectors and 18 wide-angle Cherenkov telescopes. Its mission is to intercept cosmic rays in the universe like "time and space stationery".

△ "Lasso" Cherenkov telescope works

△ "Lasso" water Cherenkov detector array

Cosmic rays are "raindrops" in deep space and "time drift bottles" of distant celestial bodies. They carry the code of celestial evolution and knock on the earth at a speed close to the speed of light.

△ "Cable" electromagnetic particle detector and Muzi detector

LAMOST writes biographies of stars with visible light, FAST listens to whispers in deep space with radio waves, and Lasso traces the history of the universe with gamma rays. Every discovery of these astronomical devices is trying to answer "Where did we come from? Where is the universe finally? "

△ Weather changes above "Five-hundred-meter Aperture Spherical Radio Telescope (FAST)"

△ Foreign radio telescope

The scientific and technological progress and influence brought by scientific apparatus can hardly be measured by the current short-term achievements. Every major breakthrough will "inadvertently" bring great shock and impetus to the whole basic discipline and even the process of human civilization.

△ Cosmic Nebula Simulation Animation

Academician Cui Xiangqun also talked about the significance of human beings inquiring about the sky and surveying the sky: "When you see the starry sky, everyone will feel that people are very small. Even if you live for 100 years, it is only a moment on the scale of the universe. So we have to do something interesting. This interesting thing makes you feel that you have not lived in vain and contributed to the progress and development of human civilization. "

△ beautiful starry sky

In front of the 13.8 billion-year-old universe, the history of human beings is like a moment, but it is the existence of this moment that allows us to use electromagnetic waves as a pen to write annotations belonging to human beings on the curtain of time and space.

The Beauty of Science, Episode 3, Asking for Heaven

At 21:20 pm on April 27th, 2025.

CCTV-10 science education channel

See China Astronomical scientific apparatus.

On a light-year scale

Measuring the deepest mysteries of the universe