在自然界中,荷叶上的露水总是尽可能的呈球型,某些昆虫则可以在水面上行走自如,其实都是水表面张力的现象。液体内部的分子和分子间几乎是紧挨着的,分子间经常保持平衡距离,稍远一些就相吸,稍近一些就相斥,这就决定了液体分子不像气体分子那样可以无限扩散,而只能在平衡位置附近振动和旋转。下面,我们就利用表面张力来进行一个有趣的试验。为了不弄脏你家的地板,最好这个试验在厨房中进行。 In nature, the dew on the lotus leaf is always as spherical as possible, and some insects can walk freely on the surface of the water, which is actually the phenomenon of water surface tension. Liquid molecules and molecules are almost in-between, the molecules often maintain a balance between the distance, a little farther on the suction, a little closer to repulsion, which determines the liquid molecules do not like gas molecules that can be infinitely diffused, It can only vibrate and rotate near the equilibrium position. Below, we use the surface tension for an interesting experiment. In order not to dirty your home floor, the best test in the kitchen.