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宝塔面板登录 phpMyAdmin 提示服务器和客户端上指示的HTTPS之间不匹配
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2024-04-16
Climate change could affect timekeeping, study says
{mp3 name="听力" url="http://v-hls.chinadaily.com.cn/stream/607212/903f9e1b-f05d-485d-b69c-e37ae16606b4/571fde86-381d-4d12-8cf6-bc045c95a981.mp3" cover="https://img2.chinadaily.com.cn/images/202404/08/66139dd2a31082fc2b6bcb5b.jpeg" theme="#f0ad4e" autoplay="autoplay"/}Climate change is affecting the speed of the Earth's rotation and could impact how we keep time, a study says.一项研究称,气候变化正在影响地球的自转速度,并可能影响人类的计时方式。"Global warming is already affecting global timekeeping," says the study, published in the journal Nature.这项发表在《自然》(Nature)杂志上的研究指出:"全球变暖已经在影响全球计时。"Coordinated Universal Time (UTC) - which is used by most of the world to regulate clocks and time - is calculated by the Earth's rotation."协调世界时"(UTC)是根据地球自转计算出来的,世界上大多数国家都用它来管理时钟和时间。But the Earth's rotation rate is not constant and can therefore have an effect on how long our days and nights are.但地球的自转速度并不是恒定的,因此会对我们的昼夜长短产生影响。Changes to the planet's liquid core have meant the Earth has been spinning slightly quicker.地球液态内核的变化意味着地球自转速度略快。Since the 1970s, to correct for this, about 27 leap seconds have been added to the global clock, with timekeepers planning on subtracting a second for the first time in 2026. This is known as a "negative leap second."自 20 世纪 70 年代以来,为了纠正这一现象,全球时钟已经增加了约 27 个闰秒,计时员计划将在 2026 年首次减少一秒。这被称为 "负闰秒"。However, the study finds that ice melting caused by climate change has partly offset that acceleration.然而,研究发现,气候变化导致的冰雪融化部分抵消了这一加速。Ice sheets are now losing mass five times faster than they were 30 years ago, meaning that the negative leap second change will not be needed until 2029, the study suggests.研究表明,冰盖现在的质量损失速度是30年前的5倍,这意味着可能直到2029年才需要负闰秒的变化。"It's kind of impressive, even to me, we've done something that measurably changes how fast the Earth rotates," Duncan Agnew, the author of the study, told NBC News.这项研究的作者邓肯•阿格纽告诉美国全国广播公司新闻(NBC News):"即使对我来说,我们已经做了一些可以适度地改变地球旋转速度的事情,这也是令人印象深刻的。""Things are happening that are unprecedented.""正在发生的事情是前所未有的。"The negative leap second has never been used before and, according to the study, its use "will pose an unprecedented problem" for computer systems across the world.负闰秒以前从未使用过,根据这项研究,负闰秒的使用将给全球计算机系统 "带来前所未有的问题"。"This has never happened before, and poses a major challenge to making sure that all parts of the global timing infrastructure show the same time," Mr Agnew, who is a researcher at the University of California, San Diego told AFP news agency.加利福尼亚大学圣迭戈分校的研究员阿格纽先生告诉法新社记者:"这种情况以前从未发生过,这对确保全球计时基础设施的所有部分都显示相同的时间构成了重大挑战。""Many computer programs for leap seconds assume they are all positive, so these would have to be rewritten," he added.他补充说:"许多计算闰秒的计算机程序都假定它们都是正数,因此这些程序必须重写。"There has been some skepticism of the study, however.然而,也有一些人对这项研究持怀疑态度。Demetrios Matsakis, former chief scientist for time services at the US Naval Observatory, told AFP that "Earth is too unpredictable to be sure" if a negative leap second would be needed any time soon.美国海军天文台负责时间服务的前首席科学家德米特里奥斯•马萨基斯告诉法新社说,"地球太不可预测了,无法确定是否在不久的将来就需要负闰秒。"Human activities like burning fossil fuels are causing world temperatures to rise.燃烧化石燃料等人类活动正在导致全球气温上升。That temperature rise is having a huge effect on the environment, including the rapid melting of glaciers and ice sheets.气温上升对环境产生了巨大影响,包括冰川和冰盖的迅速融化。
2024年04月16日
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2024-01-29
解决Edge浏览器提示“此网站已被人举报不安全”
1月29日下午开始,大量用户反馈通过Edge浏览器的必应搜索百度内容时,会提示“此网站已被人举报不安全”,估计是Microsoft Defender SmartScreen 的库出问题了。直接关闭Microsoft Defender SmartScreen https://img-blog.csdnimg.cn/direct/28a39261640c498395f92177641bf80c.png
2024年01月29日
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2023-11-24
China's second largest waterfall casts rainbows for sightseers
Due to the recent early winter sunny weather, tourists got the chance to enjoy a double rainbow at the Hukou Waterfall Scenic Area in Jixian county, Shanxi province. The splashes and mists created by the surging water, illuminated by the sunlight, have formed a unique scene for tourists who visit this famous attraction known for its yellow water and thunderous sound. Located on the border of North China's Shanxi and Northwest China's Shaanxi provinces, the Hukou Waterfall is the second-largest waterfall in China and the largest one on the Yellow River. 由于近期初冬阳光明媚的天气,游客有机会在山西省蓟县湖口瀑布风景区欣赏双彩虹。 汹涌澎湃的水流产生的水花和雾气,在阳光的照耀下,为参观这个以黄水和雷鸣般的声音而闻名的著名景点的游客形成了独特的场景。 湖口瀑布位于中国北方山西省和西北陕西省的交界处,是中国第二大瀑布,也是黄河上最大的瀑布。
2023年11月24日
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2023-07-11
我回来了
快乐总是有尽头的这两个月去拜访了扬州的炒饭,淄博的烧烤,银滩一望无际的海景,还遇到了可爱的沙滩小姐姐就着海景,看完了NLP,大概是摸清楚了语言模型是怎么回事搞明白了steam的密钥,自己制作软件,玩了一大堆以前舍不得买的单机游戏,白嫖可能不道德但是真的很爽啊哈哈哈总之这一趟很值...回来了也该收心了,总不能一直玩下去的英语依然很重要,CPA还得继续啃,python必须做到熟练,PHP几个框架还没有完全吃透还得做读书笔记,脑袋空空怎么锻炼表达能力?好好干!
2023年07月11日
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1 点赞
2022-12-09
常用对照表
https://tool.oschina.net/commons?type=3
2022年12月09日
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1
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