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地球的磁极正从加拿大快速地移动到西伯利亚，科学家们也很困惑。_我的网站

金砖五国

A | DENVER -- Denver prosecutors asked a judge on Friday to dismiss a case against Marlon Wayans stemming from a luggage dispute with an airline employee who the actor and comedian said targeted him because of his race. The city attorney's office's request comes a day after Wayans, who is Black, asked for the case to be dismissed and accused prosecutors of perpetuating the discrimination he faced by continuing with the case. Assistant City Attorney Katie Conner did not directly explain why prosecutors wanted the case dismissed, but she suggested that information gathered by Wayans' lawyers about white passengers being allowed to violate United Airlines' luggage limit played a role. One of Wayans' lawyers, David M. Beller, said a judge has granted the request. He applauded the city's decision.“Our community does not need one more innocent Black man wrongfully accused and wrongfully convicted," Beller said. "I hope this inspires everyone to be more aware of their own implicit and explicit bias." A spokesperson for the city attorney's office did not return an email seeking comment. Wayans was cited for disturbing the peace, a municipal violation, in June, police said. According to Wayans’ motion to dismiss the case, a United Airlines gate agent told him he could not get on a flight to Kansas City with three bags. The gate agent tried to physically block Wayans from getting on the flight after he consolidated his luggage into two bags to conform with airline policy, according to the filing. Wayans boarded anyway and was later asked to get off the plane before it departed.While Wayans was working to rearrange his luggage, the gate agent kept allowing white passengers with three bags to board the flight, according to the court filing, which included still photos from surveillance video of white passengers with yellow arrows pointing to each of their bags. About 140 people boarded the flight, the filing said, many with three bags and oversized bags that violated the airline’s policy.According to statements recorded on police body camera and cited in the filing, the gate agent told officers that Wayans “shoved,” “pushed” or “elbowed” him as the comedian boarded the plane, which Wayans’ lawyers said was a lie. They say Wayans may have brushed shoulders with the agent as he boarded. In the filing to dismiss the case, Conner said Wayans “brushed past” the gate agent to get on the plane.The police officers who investigated were doubtful that any crime had been committed, according to Wayans' filing, but the gate agent asked that charges be pursued.In the city's motion to dismiss the case, Conner noted that she had reviewed the information gathered by Wayans' lawyers and met with the gate agent on Thursday to go over each photo included in Wayans' filing. “As a result of information gathered during that interview, it is the undersigned city attorney’s determination that, while probable cause existed at the time of the issuance of the complaint against Mr. Wayans, it is not in the interests of justice to proceed in this case,” Conner said.。科学家们不知道为什么地球磁场运动得很快。

B | 研究人员说，磁极正在从加拿大“滑翔”到西伯利亚。磁北极的运动是显而易见的，世界各地的研究人员都渴望更新世界地磁模型。世界地磁模型是所有现代导航系统的基础，包括海军导航系统和手机上的谷歌地图。

C | 最新的世界地磁模型，于2015年出版，相信到2020年可以使用。但研究人员说，磁场变化如此之快，他们必须提前修改世界地磁模型。世界地磁模型原定于1月15日更新，但由于美国政府的关闭，时间不得不推迟到1月30日。地磁场在不断变化。小科学普及：地磁极（来自维基百科）人类首先根据地球两极的方向来定义磁铁的南北极，而不是相反：磁铁的北极是指磁针自由旋转时转向地磁北极的末端。由于两块磁铁的南北极相互吸引，这就意味着地磁场的北极实际上是地磁场的南极（即地磁场线指向地球中心的地方）。南北磁极一般位于地极附近，但其位置随地质时间的变化而变化较大。这种变化太慢，无法干扰罗盘的日常使用。