俄某地区遭遇洪水侵袭 20:56
CNN镜头记录显示,当最后一批降落伞启用时,载人返回舱已完成指数级减速,以轻柔姿态坠入海面。太平洋时间下午5时许,NASA评论员罗布·纳维亚斯宣布“‘坚毅号’与四位宇航员实现完美靶心溅落”。按照NASA官方记者詹妮弗·M·杜伦的报道,海军救援队随即从漂浮返回舱中接出宇航员,通过直升机转运至“约翰·P·默瑟号”两栖舰进行医学评估。
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Возгорание из-за электронной сигареты пассажира привело к отмене авиарейса20:58
Let's go back to that tug-of-war. The driver on the right now has an idea: Instead of gunning his engine, he throttles down to maintain a static friction interaction with the rails. Slow and steady. The guy on the left floors it—and what happens? His wheels spin and he gets a kinetic frictional force. Well, static friction beats kinetic friction, so the right train wins!