最常见误解:高处落下一分硬币可致死 |
http://www.sina.com.cn 2006/01/18 17:03 国际在线 |
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(点击图片查看下一页) A penny dropped from the top of a tall building could kill a pedestrian 高处落下的一分硬币可致人死亡
A penny isn't the most aerodynamic of weapons. A combination of its shape and wind friction means that, tossed even from the 1,250-foot Empire State Building, it would travel fast enough merely to sting an unlucky pedestrian.
从高处落下的一分硬币并非最能体现空气动力学的武器。将硬币的形状和下落时的空气摩擦力结合起来考虑,即使从1250英尺(约合375米)高的纽约帝国大厦上扔下一枚硬币,它所带来的快速冲击力仅仅是让一个不幸的过路者感到一阵刺痛而已。
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