【Today's Cover】
On the 18th, in the early morning of Nanjing Liuhe Lingyan Mountain Scenic Area, the silver wrapped like a fairyland. Image source: Visual China
Message stations
Screenshot of the official website of the National Development and Reform Commission
● The National Development and Reform Commission and other departments issued the "Several Policies on Promoting the Recovery and Development of Difficult Industries in the Service Industry" on the 18th, proposing 43 specific measures. The document further puts forward precise epidemic prevention requirements for the service industry. It is required that the city must not be locked down or blocked in accordance with the corresponding provisions on epidemic prevention and control, and public transportation must not be interrupted unless it is necessary or approved. (Source: Xinhua News Agency)
New discoveries
Image source: Visual China
Recently, artificial intelligence company Deep Thinking has partnered with the Swiss Federal Institute of Technology in Lausanne to train a deep reinforcement learning algorithm to control overheated plasma in nuclear fusion reactors and declare success. The breakthrough, published in the journal Nature, could help physicists better understand how fusion works and accelerate the arrival of unlimited clean energy. (Source: Science and Technology Daily)
● The research team of Fukui University in Japan announced a survey result on the 17th that due to the habit of wearing masks developed by the new crown epidemic, the incidence of hay fever in elementary school students has been halved. The survey found that the proportion of children with new symptoms of hay fever was 1.4%, halving the pre-pandemic average of 3.1%. (Source: Global Times)
Pure technology
Recently, the professional academic journal Nature Human Behavior published an aging research paper saying that after analyzing more than 1 million study subjects, it was found that the brain's speed of processing information does not decline before the age of 60. While it is true that the brain's response time slows down from the age of 20 onwards, this may be due to increased decision-making caution and a slowdown in some non-decision-making processes. (Source: China News Network)
JiLA researchers measured the time expansion in this tiny cloud of strontium atoms and how the speed at which the atomic clock operates varies with altitude. Image source: Jacobson/National Institute of Standards and Technology
Physicists at the Joint Laboratory for Astrophysics (JILA) in the United States made the smallest-ever measurements of the temporal expansion effect of Einstein's general relativity, and the results showed that two tiny atomic clocks, which are only one millimeter apart, do operate at different speeds. A paper recently published in the journal Nature describes this experiment or offers a way to reveal how relativity and gravity interact with quantum mechanics. (Source: Science and Technology Daily)
Look at the world
● The Peruvian Ministry of Health announced on the 16th local time that in view of the fact that dengue fever has caused 8 deaths and more than 5,000 infections in the country this year, the country announced the issuance of a dengue fever epidemic alert. Dengue fever is a mosquito-borne disease that occurs in tropical and subtropical regions, mild symptoms can cause high fever, rash, muscle and joint pain, and severe illness can lead to severe bleeding, shock and even death. (Source: CCTV News)
Da
Screenshot of the new video
Recently, Israeli farmer Ariel Chahi planted a strawberry weighing 289 grams, which was officially recognized by the Guinness Book of World Records as "the heaviest strawberry in the world", which is more than 24 times the average weight of ordinary strawberries. (Source: China News Network)
Watching the Winter Olympics
Source: People's Daily
● On the 18th, in the final of the women's U-shaped field skill of freestyle skiing at the Beijing Winter Olympics, Gu Ailing, an athlete of the Chinese team, successfully won the championship and won the eighth gold medal for the Chinese delegation, which was also her second personal gold medal after winning the gold medal in the freestyle ski women's big jump at the Winter Olympics. (Source: Xinhua News Agency)
Editor: Wang Yu
Review: Julie
Final Judgement: Wang Yu