《自然》（20230803出版）一周论文导读
Abstract:Granites are nearly absent in the Solar System outside of Earth. Achieving granitic compositions in magmatic systems requires multi-stage melting and fractionation， which also increases the concentration of radiogenic elements. Abundant water and plate tectonics facilitate these processes on Earth， aiding in remelting. Although these drivers are absent on the Moon， small granite samples have been found， but details of their origin and the scale of systems they represent are unknown. Here we report microwave-wavelength measurements of an anomalously hot geothermal source that is best explained by the presence of an approximately 50-kilometre-diameter granitic system below the thorium-rich farside feature known as Compton–Belkovich. Passive microwave radiometry is sensitive to the integrated thermal gradient to several wavelengths depth. The 3–37-gigahertz antenna temperatures of the Chang’e-1 and Chang’e-2 microwave instruments allow us to measure a peak heat flux of about 180 milliwatts per square metre， which is about 20 times higher than that of the average lunar highlands3，4. The surprising magnitude and geographic extent of this feature imply an Earth-like， evolved granitic system larger than believed possible on the Moon， especially outside of the Procellarum region5. Furthermore， these methods are generalizable: similar uses of passive radiometric data could vastly expand our knowledge of geothermal processes on the Moon and other planetary bodies.
全球首个用于未来纳米级疾病诊断的光纤超声成像探头
江苏激光联盟导读：诺丁汉大学的科学家开发了一种超声成像系统，该系统可以部署在一根细细的光纤尖端上，并且可以插入人体中以可视化3D细胞异常。
林允169cm体重96斤：女演员的极端瘦身是职业需要还是行业畸形
林允在采访中那句“我要不是为了上镜，我也想一百多斤”，直接把所有问题的核心摆到台面上——她主动把169cm身高的体重压到96斤以下，从来不是什么个人审美偏好，而是多重因素叠加的必然结果。
深度｜SemiAnalysis万字长文：揭秘特朗普关税新政将如何撕裂全球半导体供应链，墨西哥或成最大赢家
图片来源：Unsplash美国人工智能基础设施的建设已进入规模驱动的关键阶段，持续的技术突破需要数百亿美元的资本投入。
特朗普关税深度解读：存在GPU漏洞
semianalysis认为，特朗普关税政策引发的经济不确定性，有可能成为美国在AI领域占据霸主地位的最大障碍。
量子密码就像不败的剑法，但有时防不了别人掏枪…… | 科技袁人
以上大概就是这次所谓“量子密码遭破解”事件来龙去脉。miaopai.com/media/CIMZImwvtaq3-U3B7Gx2fNg-8xbpuo1H.htm部分评论人工智能：我时常为自己惰于求甚解而惭愧，也对许多社会大众的愚昧感到麻木。