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飞行

飞翔中的棕苍鹰。

飞翔飞行物体的一种行进方式。方法有许多种,例如利用与空气动力学原理产生升力(如飞机鸟类);也可以经由比空气更轻的重量来达成目的(如热气球);还有一种飞行方式并不在空气当中,而是在太空里,称为太空飞行。在虚构作品中,也有假想能利用魔法超自然力量、超能力来飞。

鸟类的飞行

关于鸟类飞行的起源一直存在两种常见的观点:一种观点认为早期鸟类是从地面起飞的;一种观点认为它们是通过从树上或崖壁上落下来起飞的。也有人认为飞行的问题只是一个学习以特定角度拍动翅膀的问题[1]

参考文献

  1. ^ Kenneth P. Dial; Brandon E. Jackson, Paolo Segre. A fundamental avian wing-stroke provides a new perspective on the evolution of flight. Nature. 23 January 2008, (451): 985–989 [2008-02-22]. doi:10.1038/nature06517. (原始内容存档于2010-03-27).  页面存档备份,存于互联网档案馆
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飞行
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