USS Essex at the Center of Additive Manufacturing Trials During RIMPAC 26
USS Essex (LHD-2) 是 2026 年环太平洋演习期间大规模增材制造测试的核心，美国海军和海军陆战队依靠现代机制部件来磨练自我修复能力。 RIMPAC 26, which is being held in Hawaii through July 31, brings together military, government, academic, commercial and coalition partners in what the U.S. Navy has described as the largest advanced manufacturing demonstrat
洛克希德·马丁公司正在推出一款采用第六代技术的“第五代以上”F-35——大约是第六代战斗机的 80%，而成本只有一半。但该飞机目前的 Block 4 升级至少超出预算 60 亿美元，并且晚了五年，而且五角大楼已经在资助另外两架高端战斗机。
The Republic Doesn’t Ratify Itself
Our nation is turning 250. The anniversary will summon the usual rhetoric about an inheritance handed down.但继承恰恰是错误的比喻。共和国的创始人并没有继承共和国；而是继承了共和国。 they argued it into being and asked their fellow citizens to say yes. Every generation since has faced the same question, whether or not anyone bothered to
After Decades of Mystery, Researchers Locate a Missing Page of the Archimedes Palimpsest
新发现的阿基米德复本叶子可以帮助利用现代成像技术恢复失落的古代数学。 A page from one of the world’s most important ancient manuscripts has resurfaced after being missing for decades.研究人员在法国布卢瓦美术博物馆的阿基米德重写本中发现了一片失落已久的叶子，这一发现 [...]
Condemned to plutocracy? The relentless rise of US inequality
埃隆·马斯克是美国不平衡繁荣的受益者——这个国家有再分配的胃口吗？随着巴拉克·奥巴马(Barack Obama)的总统任期即将结束，时任总统经济顾问委员会主席贾森·弗曼(Jason Furman)以“伟大社会以来减少不平等的最大投资”阐述了他的政府为遏制国家过高的收入不平等所取得的进展。事实上，到2016年底，税收和根据国会预算办公室 (CBO) 的估计，转移支付使最富有的 1% 家庭的收入份额减少了五分之一多一点，比至少吉米·卡特 (Jimmy Carter) 执政以来的任何政府都多。他们将最贫困的五分之一人口的收入比例从 3.9% 提高到 7.9%，这是至少自 1979 年以来的最高比例。
Opinion: How a California District Is Transforming Education in a Rapidly Changing World
Public education, in red and blue states alike, is being pulled apart by student disengagement, mental health needs, culture war battles, voucher expansion, budget uncertainty and the disruptive force of artificial intelligence.新数据再次引发人们对标准化考试成绩及其长达十年的下降的担忧。与此同时，寻求公共教育更多选择的共和党人 [...]
