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NASA开始测试火星样本返回任务的防护罩_我的网站

一 |     Music duo Sachet and Parampara Tandon have set off a major buzz online after dropping a detailed video where they accuse composer Amaal Mallik of spreading what they call “false and baseless” claims about their 2019 hit Bekhayali from the Shahid Kapoor starrer Kabir Singh. The couple shared the video on Instagram and described it as an “expose” on Amaal Mallik. Their caption strongly stated, “Warning. This video could have been a 10 second proof to shut down all rumours, but exposing some people became important for our mental peace. @amaal_mallik SHAME ON YOU AMAAL MALIK.”                                                                 View this post on Instagram          A post shared by सचेत टंडन (@sachettandonofficial)               In the video, Sachet and Parampara respond to Amaal’s recent statements where he allegedly hinted that Bekhayali sounded similar to an older tune of his. They firmly maintain that the track was “entirely original” and was created during joint sessions with Shahid Kapoor and director Sandeep Reddy Vanga. According to them, they have complete chat records with Amaal and the Kabir Singh team that show every melody, beat and lyric came out of those meetings. They also clarify that they had no association with T Series before Kabir Singh, while Amaal had been working with the label since 2015, raising the question, “Why would anyone favour us when we were complete outsiders?”     The duo also put out screenshots of Amaal’s earlier messages where he had congratulated them after Bekhayali released and said he was “waiting” for the song. They add that they did not even have Amaal’s number in the beginning and that he was the one who contacted them first. Calling out his public remarks, they accuse him of speaking without any concrete proof and of “misleading fans” while repeatedly blaming the industry for his professional struggles. They stress that their music, including tracks like Har Har Mahadev, is original and built through their own hard work.                Sachet and Parampara conclude the video by demanding a public apology, saying Amaal’s comments have affected their image. They caution that they are ready to take legal steps if needed. The online reaction to their post has been sharply split, with many listeners appreciating their decision to speak openly, while others have voiced support for Amaal Mallik, keeping the debate very active across the internet.Also Read: After A R Rahman, Prasoon Joshi Expresses his Displeasure over Masakali 2.0。

二 |     NASA一个设计防护罩的团队，正在保护美国宇航局的火星入地系统免受微陨石和空间碎片的影响。

三 | 为了测试团队的防护罩和计算机模型，NASA一个实验室旨在安全地重现危险的撞击。这个位于新墨西哥州拉斯克鲁斯NASA白沙测试设施的远程超高速测试实验室远离居民，被沙丘包围，为从航天飞机到阿尔特弥斯的每一个人类航天项目提供支持。该实验室还支持国际空间站（ISS）、商业乘员和商业补给项目的测试。
实验室使用2级光气枪将物体加速到每秒27500英尺（18750英里/小时）的速度，模拟微陨石和轨道碎片对航天器的影响。第一级使用火药作为推进剂，就像标准枪支那样。第二级使用高度压缩的氢气，将气体推入一个较小的管子，增加枪内的压力，就像汽车的活塞。火炮的压力变得如此之高，以至于如果它爆炸的话，会把建筑物夷为平地。

四 | 工程师们花了三天时间为一个只持续一秒钟的实验做准备。他们使用了实验室的中型高压（50口径范围）2级轻气枪，以每秒16000至22000英尺（11000至15000英里/小时）的速度发射小弹丸。以这种速度，你可以在5分钟内从旧金山到纽约。虽然小球的速度快得令人难以置信，但微陨石在太空中的速度实际上是六到七倍。

五 | 因此，该团队依靠计算机模型来模拟微陨石的实际速度。较慢的速度将测试计算机模型模拟对其防护罩设计的影响，并允许研究小组研究材料对这种能量的反应。火星样本返回是一项多任务活动，旨在将NASA"毅力"号探测器收集的经过科学选择的岩石和沉积物样本带回地球，将使科学家们能够使用最先进的实验室仪器对其进行研究，这些仪器将在未来十年和未来几十年内存在。这项活动是航天史上最雄心勃勃的努力之一，涉及多个航天器、多次发射和多个政府机构。

六 | NASA目前正在设计和开发将火星样品管送回地球的捕获、封闭和返回系统。

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Published on:18:07:52