What makes a belly flop dive so unpleasant? Physicists from Brown University found that dropping a cylinder with a soft “nose” into a body of water had a higher impact force because the vibrations of the body itself compounded the impact with the water.

中文翻译：

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不良振动

是什么让腹部翻滚潜水如此令人不快？布朗大学的物理学家发现，将一个带有柔软“鼻子”的圆柱体放入水中会产生更高的冲击力，因为圆柱体本身的振动会加剧与水的冲击力。