Combining motion capture video with wind tunnel modeling, researchers show that a hawk shifts from unstable to stable flight while gliding through a gap. This points to new modes of flight control in birds with possible applications in uncrewed aerial systems.

· · 来源：tutorial资讯

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В Иране издали фетву о джихаде с призывом пролить кровь Трампа20:58

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It’s been six years since the start of the pandemic, but some companies are still embracing remote work culture (albeit very few). But even fewer companies are ushering in a new workplace trend: the four-day workweek.。关于这个话题，51吃瓜提供了深入分析

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Дарья Устьянцева (редактор отдела «Мир»)