Technology Morning News | Russia plans to build a new anti-missile defense "shield"

【Today’s cover】

On the 23rd, at the Miaoshanzhai scenic area in Baihe County, Ankang City, Shaanxi Province, the morning glow reflected on the main peak of Miaoshanzhai, surrounded by dense forests and beautiful natural scenery. Photo by Xinhua News Agency reporter Tao Ming

News Station

Xuelong 2 before setting out. Image source: China's 38th Antarctic Expedition

●On the morning of the 23rd, the second group of 101 members of the 38th Chinese Antarctic Expedition set off from Shanghai with the "Xuelong 2" to the Great Wall Station in Antarctica and other places to carry out scientific research tasks. This is the third time that the "Xuelong 2" icebreaker has participated in my country's Antarctic scientific expedition. The previous two times were the 36th and 37th Chinese Antarctic scientific expeditions. (Source: Antarctic and Arctic Expeditions)

On November 7, villagers underwent nucleic acid testing at the Henantun Village Committee in Xingfu Township, Aihui District, Heihe City. Photo by Xinhua News Agency reporter Wang Song

●At 15:00 on the 23rd, the Office of the Command Headquarters of the Leading Group for Responding to the Novel Coronavirus Infection Pneumonia Epidemic in Heihe City, Heilongjiang Province, issued an announcement to adjust some medium- and high-risk areas in Aihui District to low-risk areas. So far, the entire Aihui District of Heihe City has been downgraded to a low-risk area, and the entire Heihe City is a low-risk area. (Source: Science and Technology Daily)

Pure Technology

Pedestrians walk past a COVID-19 vaccination vehicle in New York, the United States, on November 19. Photo by Guo Ke, Xinhua News Agency

●According to Reuters on the 22nd, US researchers are developing a chewing gum that can "capture" viruses in saliva, believing that it may help slow the spread of the new coronavirus. According to the researchers' conception, when patients chew this chewing gum, the ACE2 receptor protein contained in the gum can "capture" the virus in saliva, reducing the possibility of patients spreading the virus through talking, breathing or coughing. (Source: Xinhua News Agency)

●Recently, the research group of Professor Peng Xinhua of the University of Science and Technology of China has cooperated with German scientists to develop a new type of ultra-sensitive quantum precision measurement technology, and used it for direct experimental searches for dark matter. The experimental results are at least 5 orders of magnitude higher than the previous international best level. The international authoritative academic journal Nature Physics recently published this result. (Source: Science and Technology Daily)

The mycelium of fluorescent umbelliferae shines brightly in the dark. Photo courtesy of Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences

●Recently, the research team of Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences successfully isolated fluorescent umbilical cord fungus species. After humus cultivation, it was found that the mycelium has strong fluorescence, which can be used to make popular science products to meet the needs of the public. (Source: China News Network)

See the world

On April 4, 2020, in Turin, Italy, a piece of white cloth with the words "Doctors and nurses, you are our heroes" was hung on the railing. Xinhua News Agency, photo by Tardito

●According to the report of the European Union News Agency quoted by the Italian European Network, a recent study in Italy has proved that before the first local COVID-19 patient was found in Italy, there were 527 cases of COVID-19 infection in Lombardy. Italian researchers have once again confirmed that the spread of the new coronavirus in Italy was earlier than February 2020. (Source: China News Network)

Russia's current Voronezh long-range early warning radar. Image source: China National Defense News

● According to the Russian newspaper Izvestia, Russia plans to build a new anti-missile defense "shield" by 2030, update the missile attack early warning system within the country, and include over-the-horizon radar in it. This anti-missile defense "shield" will protect Russia from attacks by missiles and other weapon systems. (Source: China National Defense News)

Grand View Garden

The 10,000-ton curved eccentric rotating bridge successfully crossed the Tianjin-Qinhuangdao high-speed railway (photo taken by drone). Photo by Ban Xiaojie

●Recently, in Tangshan City, Hebei Province, the T-shaped continuous beam of the super-large bridge over the upper connecting line of the Tianjin-Qinhuangdao High-speed Railway, which is connected to the new Beijing-Tangshan Intercity Railway and introduced into the Tangshan Hub, was successfully rotated, and successfully crossed the Tianjin-Qinhuangdao High-speed Railway. It is understood that this rotating bridge is the only rotating bridge on the Beijing-Tangshan Intercity Railway, and it is also the first high-speed railway bridge in my country to use the "hanging basket suspended casting + super-large segment bracket cast-in-place" method to achieve precise rotation of the T-shaped beam. (Source: Science and Technology Daily)

Editor: Zhang Qiqi

Reviewer: Wang Xiaolong

Final review: Liu Haiying

Science and Technology Daily