悬在丝上的蜘蛛身体为什么不容易晃动?法国研究人员发现,原来蜘蛛丝中含有一种特殊的分子结构,能使蛛丝富有弹性,很容易克服摆动。
A new study reveals that dragline silk, the stuff spiders use to rappel, has a molecular structure that makes it resilient to twisting.
接着他晃动所有的砝码,让它们像教堂里的油灯一样地来回摆动。
Then he set them all to swinging back and forth, like the lamps in the cathedral.
接着他晃动所有的砝码,让它们像教堂里的油灯一样地来回摆动。
Then he set them all to swinging back and forth, like the lamps in the cathedral.
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