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●5月1日新华网报道,丹麦哥本哈根癌症流行病学研究所的科学家通过对1968年以来在丹麦发电厂和供电厂工作过的2.8万名工人的跟踪调查,发现在发电厂和供电厂广泛存在的低频电磁场不会导致癌症,在这些地方工作的人癌症发病率并不比其他人高。●5月1日《科技日报》报道,山东大学晶体材料国家重点实验室在2000℃高温和真空的环境下,成功研制出3inch碳化硅单晶。●5月2日新华网报道,美国麻省理工学
● On May 1, Xinhua reported that scientists from the Copenhagen Cancer Epidemiology Institute in Copenhagen, through a follow-up survey of 28,000 workers working in power plants and power plants in Denmark since 1968, found that in power plants and power plants, The presence of low-frequency electromagnetic fields does not cause cancer, and the incidence of cancer in those working in these areas is not higher than that of others. ● On May 1, “Science and Technology Daily” reported that 3inch silicon carbide single crystal was successfully developed under the condition of high temperature and vacuum of 2000 ℃ by State Key Laboratory of Crystal Materials of Shandong University. ● Xinhuanet reported on May 2 that Massachusetts Institute of Technology