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投枪器

投枪器。

投枪器纳瓦特尔语ahtlatl; 纳瓦特尔语发音:[ˈaʔt͡ɬat͡ɬ])是一种利用杠杆原理来增加投枪的初速度的工具。其中一端有杓状或钩状的支撑物来固定住投枪的尾端,使用者通常以一手抓住没有杓状或钩状物的那一端,以上臂和腕作动作将标枪投出。投枪器可以看作是手臂的延伸。这个延伸的长度可以使投掷者有更长的时间可以对标枪施力,让标枪获得更多动能即增加标枪飞离投掷者时的速度。[1]使用投枪器很容易使投射物的初速超过150km/h。[2]

投枪器在人的历史早期就出现在世界各地。

参考

  1. ^ Atlatl History and Physics. Tasigh.org. [2013-09-21]. (原始内容存档于2021-01-26). 
  2. ^ Girls on top. The Economist. 2008-04-12 [2010-12]. (原始内容存档于2016-03-04). 
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投枪器
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