[quick news] on November 26, 2018, "artificial meat" will be served to the American table

"Artificial meat" is coming to the American table It is reported that the meat products produced in the laboratory, commonly known as "artificial meat", will soon appear on the American table The U.S Department of agriculture and the U.S Food and Drug Administration (FDA) announced recently that they will jointly supervise the production of the meat so that it can be sold safely to consumers all over the country A joint statement issued by the two agencies said they would work together to "nurture these innovative foods and maintain the highest standards for public health." According to the division of labor, FDA will be responsible for the collection, storage and cultivation of cells needed to manufacture artificial meat, while USDA is mainly responsible for the production and labeling of food Https://www.jurist.org/news/2018/11/fda-and-usda-announcement-production-of-lab-growth-meat/ China's first preparation of ultra-high-purity rare earth modified alumina, independently developed by the research and development team of the school of materials science and engineering, Shanghai Jiaotong University, the pilot project of rare earth modified high-purity sapphire raw materials was officially put into production, and the production line for the first time produced 5N (purity greater than 99.999%) ）High purity alumina products High purity aluminum oxide is the high-end product of aluminum industry and the main raw material of artificial sapphire The new project makes up for the blank of international rare earth high-purity aluminum preparation technology, and will make the high-purity aluminum industry chain and artificial sapphire industry chain link up Professor Zhang Jiao, team leader, said that the new technology perfectly integrates the purification process of high-purity alumina with the preparation technology of new rare earth materials After adding rare earth, the product not only has a great improvement in toughness, but also in color brightness and hardness Now 6N ultra-high purity aluminum ingots can be prepared and 5N can be carried out The large-scale production of ultra-high purity aluminum ingots has laid a solid foundation for the mass production of ultra-high purity alumina raw materials in China Http://digitalpaper.stdaily.com/http_www.kjrb.com/kjrb/html/2018-11 / 26 / content_ HTM? Div = - 1 Taking omega-3 fatty acids in pregnant women can reduce the risk of premature birth Australian and Danish researchers have found that taking omega-3 fatty acid supplements in pregnant women can significantly reduce the risk of premature birth The research results have been published in the medical electronic journal Cochrane review Pregnancy generally lasts for 40 weeks, preterm delivery refers to the delivery of pregnant women less than 37 weeks The researchers evaluated the results of 70 clinical trials in nearly 20000 women around the world They found that taking omega-3 fatty acid supplements daily reduced the risk of preterm delivery by 11% for women who delivered less than 37 weeks and 42% for women who delivered less than 34 weeks Deep sea fish oil is rich in omega-3 fatty acids There are many kinds of omega-3 fatty acids, the most important of which are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) The researchers recommend that pregnant women should be given 500 to 1000 mg of omega-3 fatty acids a day from 12 weeks of pregnancy, which should contain at least 500 mg of DHA Http://www.jx.xinhuanet.com/2018-11/23/c_.htm scientists proposed Sai technology, which can halve the rate of global warming Scientists proposed a technology called stratospheric aerosol injection (SAI), which can halve the rate of global warming The technique involves spraying large amounts of sulphate particles down the stratosphere at a height of 12 miles Scientists say they will use specially designed high-altitude aircraft, balloons or large naval guns to transport sulfates The team said the delivery system could be completed within 15 years But the system has great risks and needs to be coordinated across multiple countries around the world In addition, Sai technology may also endanger agriculture, leading to drought or extreme weather Https://www.dailymail.co.uk/sciencetech/article-6422475/stop-global-warning-dimming-sun.html smart glasses allow people with hearing impairment to enjoy live performance The UK National Theatre is using Epson's smart glasses to enable those with hearing impairment to enjoy live performance The glasses provide subtitles for the wearer throughout the show, and they move with the wearer's eyes as the actor moves around the stage These subtitles are not only dialogue between actors, but also stage instructions It also has a built-in menu panel, which can be used throughout the program Users can choose the size, color and location of the text on the screen https://www.cnn.com/2018/10/30/tech/smart-caption-glasses/index.html