沈阳向菲律宾友城奎松捐助2万只一次性口罩
5月4日，沈阳市政府外办收到友城菲律宾奎松市长约瑟菲娜·贝尔蒙特受访视频，视频中贝尔蒙特市长对沈阳捐赠两万只医用一次性口罩支持该市抗击疫情表示感谢。
中国距核聚变发电还有6年? 将开建全球最大脉冲驱动器，2028年发电
《南华早报》报道了一个让人惊喜的消息，中国顶级科学家称核聚变发电距离我们只有6年的时间了，据这位科学家表示，中国政府已批准建设世界上最大的脉冲驱动器，计划在2028利用核聚变能并网发电。
You didadida me？你out了
“滴水之恩，当涌泉相报”Receivingdrips of water when in need, and I shall return the kindness with a spring.——3月18日，外交部发言人耿爽谈“巴基斯坦总统阿尔维就任后首次访华”。
《科学》（20220114出版）一周论文导读
结果发现，质量是地球4到6倍的类地系外行星具有最长的发电机，这为抵御宇宙辐射提供了重要的屏蔽。The discovery of more than 4500 extrasolar planets has created a need for modeling their interior structure and dynamics. Given the prominence of iron in planetary interiors， we require accurate and precise physical properties at extreme pressure and temperature. A first-order property of iron is its melting point， which is still debated for the conditions of Earth’s interior. We used high-energy lasers at the National Ignition Facility and in situ x-ray diffraction to determine the melting point of iron up to 1000 gigapascals， three times the pressure of Earth’s inner core. We used this melting curve to determine the length of dynamo action during core solidification to the hexagonal close-packed structure. We find that terrestrial exoplanets with four to six times Earth’s mass have the longest dynamos， which provide important shielding against cosmic radiation.
紧束缚模型的构建、推导与实验映射
前言紧束缚模型是凝聚态物理里最常用的能带建模方法之一。它的出发点并不复杂：在许多晶体、分子晶体、低维材料或人造晶格中，电子（或空穴）在每个原子（或格点）附近呈现较强局域性，真正决定能带形状的，是相邻格点之间波函数的微小重叠与由此产生的“跃迁”。
「中英双语」外贸中心工作20多年，听她谈“世界第一展”
Song Wencan is a staff of the China Foreign Trade Center.
不同污泥预处理方法对污泥过滤脱水性能的影响
【能源人都在看，点击右上角加'关注'】北极星水处理网讯:摘要：研究了3种污泥预处理方法(表面活性剂处理、碱处理、Fen—ton处理)对污泥过滤脱水性能的影响。
宇宙中的重元素是怎么形成的？
想象一下，宇宙就像一座巨大的元素工厂。在它的早期阶段，这座工厂主要只生产最轻的“基础建材”：氢和氦，还有微量的锂。恒星是这座工厂里的熔炉。它们通过核聚变，像搭积木一样把轻原子核压在一起，变成更重的原子核，同时释放出巨大的能量（这就是星星发光发热的原因）。
《自然》（20220908出版）一周论文导读
Abstract:Blazars are active galactic nuclei with relativistic jets whose non-thermal radiation is extremely variable on various timescales. This variability seems mostly random， although some quasi-periodic oscillations ， implying systematic processes， have been reported in blazars and other AGN. QPOs with timescales of days or hours are especially rare in AGN and their nature is highly debated， explained by emitting plasma moving helically inside the jet， plasma instabilities or orbital motion in an accretion disc. Here we report results of intense optical and γ-ray flux monitoring of BL Lacertae during a dramatic outburst in 2020. BL Lac， the prototype of a subclass of blazars， is powered by a 1.7 × 108 MSun black hole in an elliptical galaxy . Our observations show QPOs of optical flux and linear polarization， and γ-ray flux， with cycles as short as approximately 13 h during the highest state of the outburst. The QPO properties match the expectations of current-driven kink instabilities near a recollimation shock about 5 parsecs from the black hole in the wake of an apparent superluminal feature moving down the jet. Such a kink is apparent in a microwave Very Long Baseline Array image.