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CSPAN2 Andrew Blum The Weather Machine July 14, 2024

Thank you so much for coming and braving the weather, what a great day to have a book about the weather. If you have been following the weather, who does not these days, you will have noticed at least two things, first it is getting weirder and wilder with bigger storms, hotter and more freezing temperatures and greater extremes seemingly all times of the year. Second the forecaster are Getting Better at predicting what is about to hit us, they still do not get it right 100 of the time but their accuracy is definitely improved and so has the timeliness of the report. These days were where not only of one weather model but of multiple ones simulating the fruifuture space of the atmosphe is north of a model, european model, global, and a number of others and their forecasting not just todays weather or tomorrows but whether over the next ten days and beyond. Andrew blum got interested in the stuff, he was not satisfied with explanations that attributed the advances and whether science fo

这届奥运会不好办:污水里的铁人三项、运动员中暑

这届奥运会不好办:污水里的铁人三项、运动员中暑
huxiu.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from huxiu.com Daily Mail and Mail on Sunday newspapers.

距奥运会开幕不到2周 东京游泳比赛场地仍 臭气熏天 |东京奥运会|铁人三项

距奥运会开幕不到2周 东京游泳比赛场地仍 臭气熏天 |东京奥运会|铁人三项
163.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from 163.com Daily Mail and Mail on Sunday newspapers.

哈佛联合MIT实现256个量子比特模拟器,或标志人类进入量子世界新领域

  研究中,该团队使用的是 2017 年开发的平台的升级版 即第二代平台,第二代平台可达 51 量子比特。通过该平台,研究人员能捕捉到超冷状态下的铷原子,并能使用一种名为光镊的二维单独聚焦激光束阵列,去将这些铷原子按特定顺序进行排列。   相关实验也是在第二代平台上进行的,所涉及的新装置使用空间光调制器(SLM),从而可在真空单元中形成一个大型二维光镊阵列,这时静态镊子阵列会从磁光阱中加载单独的 87Rb 原子,1000 个光镊的均匀加载概率为 50-60%。   使用移动光镊,可将最初加载的原子重新排列到可编程、无缺陷的模式,这些光镊会被一对交叉的声光偏转器(AODs)引导到任意二维位置。   研究人员可借此创造出可编程形状,如正方形、蜂窝状或三角形晶格。通过设计不同的形状,量子比特元之间会呈现出不同�

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