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.

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美상원, ‘이란 공격 중단 결의안’ 부결…트럼프 제동 실패

On the frozen surface of Kyiv's River Dnipro, men are fishing to take their minds off the war with Russia.

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Угрозу применения ядерного оружия в конфликте вокруг Ирана оценили14:57

文化味、科技味、人情味,“三味”浓,是不少网民对马年春节的一个形象概括。,更多细节参见搜狗输入法

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