A Quiet Quantum Revolution in Earth's Deep Interior
Renata Wentzcovitch et al., EOS At depths below 1,000 kilometers in Earth's mantle, pressures exceed 1 million atmospheres, temperatures are hotter than lava at the surface, and rocks behave...
Dimension Could Link Two of the Universe's Great Unknowns
Steve Nadis, Quanta For those who see the world as a dark place, the universe seems to offer little solace. According to current estimates, approximately 70% of the stuff that makes up the...
Scientists build bird-inspired robot that floats on wind without propellers
无人机在摄影、检查和交付方面变得非常有用。 They are highly maneuverable and can hover in one place, but they have a major weakness: they use a lot of energy. Their spinning propellers need a constant supply of power, which limits how long they can stay in the air.飞机则相反[…]科学家建造的受鸟类启发的机器人,可以在没有螺旋桨的情况下随风漂浮,这篇文章首先出现在《Knowri
Scientists discover magnetic fields guiding the birth of stars
恒星是如何形成的?科学家们知道,当太空中巨大的冷气体云在自身重力作用下崩溃时,恒星就会诞生。但有一个谜团几十年来一直没有解开:为什么有些气体云比其他气体云更容易变成恒星?一项新的研究提供了迄今为止最明确的答案之一。天文学家[…]科学家发现引导恒星诞生的磁场的文章首先出现在《Knowridge Science Report》上。
What if you could reset your fingerprint like a password?
指纹、面部扫描和虹膜扫描在解锁手机、登录银行账户和进入安全建筑物方面变得越来越普遍。许多人认为生物识别技术比密码更安全、更方便,因为他们不需要记住任何东西。 However, biometrics have one major weakness: they cannot easily be changed. If a hacker steals […]The post What if you could reset your fingerprint like a password? appeared first on Knowridge Science Report.
New 75-kilogram towing gear could transform maritime rescue operations
当一艘大船在海上失去动力时,每一分钟都很重要。强风和汹涌的波浪会迅速将损坏的船只推向岩石、浅水区或海上设施,从而将机械问题变成重大灾难。为了提高海上安全,挪威的研究人员和应急响应人员开发了一种新的紧急拖曳系统 […]新的 75 公斤拖曳装置可以改变海上救援行动的帖子首先出现在 Knowridge Science Report 上。
Can Doctors Put the Brain into a Safe ‘Hibernation’ After a Stroke?
A stroke is one of the world’s leading causes of death and long-term disability. Every year, millions of people experience a stroke, and many survivors are left with problems that can last for the rest of their lives. Some people have trouble speaking clearly, while others lose movement in an arm or
The Hidden Chemicals in Vapes May Strongly Harm Your Heart
许多电子烟产品的设计目的是让吸入时感觉清凉、清爽。这种清凉感是一些人认为电子烟有吸引力的原因之一。近年来,制造商越来越多地使用合成清凉成分来代替薄荷或水果等传统香料。这些化学物质会在喉咙里产生冰冷的感觉 […]《电子烟中隐藏的化学物质可能会严重伤害你的心脏》一文首先出现在 Knowridge Science Report 上。
Menopausal Hormone Therapy May Effectively Prevent Bone Loss
更年期是每个女性都会经历的一个自然阶段。它标志着月经期的结束,通常发生在 45 岁至 55 岁之间。在此期间,身体开始产生水平较低的雌激素和黄体酮激素。这些荷尔蒙的变化会引起多种症状。 […]绝经后激素疗法可以有效防止骨质流失首先出现在 Knowridge Science Report 上。
Could Eating Within a 9-Hour Window Help Prevent Diabetes?
For many people, trying to eat healthier can feel overwhelming.关于卡路里、份量、碳水化合物和营养标签的建议似乎很复杂且难以遵循。随着世界各地 2 型糖尿病发病率持续上升,科学家们正在寻找人们可能更容易采用和维持的更简单的策略。 A new […]The post Could Eating Within a 9-Hour Window Help Prevent Diabetes? appeared first on Knowridge Science Report.
(A–D) Montana tomorri and (G–H) Montana dani Puskás, Lemonnier-Darcemont, Willemse, Chobanov, Heller, Halimi, Darcemont, Kotitsa& Szövényi, 2026DOI: doi.org/10.11646/zootaxa.5828.2.3AbstractTwo new taxa of Platycleidini 在阿尔巴尼亚南部被发现,其中一种将其活动范围延伸至希腊边境。在本文中,我们分析了它们的形态特征、声学信号特征和系统发育关系。这些类群显然属于由 Montana、
Brachygobius jennie Tian, Wu, Lan, Lavoué & Huang, 2026. DOI: doi.org/10.3897/zse.102.184142AbstractA new species of bumblebee goby, Brachygobius jennie sp.十一月(Teleostei, Oxudercidae), is described based on 31 specimens collected from the Hengqin Island, Guangdong Province, China. This new species i
Classic Aero-TV: The Big Business of Diminutive Powerplants
2023 年起(YouTube 版):Jet Central 微型涡轮发动机令人印象深刻 总部位于墨西哥城的 Jet Central 成立于 20 世纪 90 年代末,为业余爱好和专业领域生产独特而迷人的微型涡轮发动机系列。该公司的单级离心流燃气涡轮发动机配置为涡轮喷气推进系统,主要(但不仅限于)用于遥控固定翼飞机。 Jet Central 的微型涡轮发动机的尺寸和输出范围从 7.95 英寸长、1.81 磅(质量)、19.11 磅推力的 Hornet 85 SE 到 13.6 英寸长、6.4 磅(质量)、61 磅推力的 Dragon 300 SE。介于两者之间的是推力为 24 磅的 Rabbi
NTSB Final Report: Cessna 182 (A1); Grumman American Avn. Corp. AA-5B (A2)
低翼飞机螺旋桨接触高翼飞机右翼,机翼严重受损分析:一架高翼飞机飞行员正在从机库区域滑行至跑道,准备从非塔台管制机场起飞。低翼飞机的飞行员也计划从同一机场起飞并开始滑行。当低翼飞机接近十字路口时,他没有看到任何接近的交通,然后向内查看并打开便携式 ADS-B 接收器。几秒钟后,低翼飞机的螺旋桨接触到高翼飞机的右翼,机翼受到严重损坏。
USAF takes delivery of interim Air Force One VC-25B Bridge
The United States Air Force (MC, Washington National) has taken delivery of the VC-25B Bridge aircraft, a Qatari-donated B747-8(BBJ) that will temporarily serve as a presidential aircraft, or 'Air Force One', while the government continues work on refurbishing two B747-8s that are set to replace two
Virgin Australia Launches Historic First Pets-in-Cabin Flight from Adelaide
维珍澳大利亚航空 (Virgin Australia) 于 6 月 23 日从阿德莱德机场运营首个宠物入舱航班,标志着宠物友好的又一里程碑。维珍澳大利亚航空 (Virgin Australia) 推出历史性的首个从阿德莱德出发的客舱宠物航班后,首先出现在 AviationSource News 上。
easyJet Rejects £4.7 Billion Takeover Bid from US Firm Castlelake
易捷航空拒绝了美国投资公司 Castlelake 的 47.4 亿英镑收购要约,称该要约“极具机会主义”。易捷航空拒绝美国公司 Castlelake 47 亿英镑的收购要约一文首先出现在 AviationSource News 上。
United Airlines Takes Starlink Wi-Fi Across the Atlantic on First Widebody Flight
美国联合航空已正式运营其首个配备 Starlink 机上 Wi-Fi 的长途航班,航班为从纽约飞往伦敦的 UA14。联合航空在首架宽体航班上使用 Starlink Wi-Fi 穿越大西洋的帖子首先出现在 AviationSource News 上。