你需要什么?一只干燥的丝袜一只装有水的玻璃杯开始动手喽!在玻璃杯中装些水,用丝袜紧紧罩住杯口,然后把水杯倒过来。发生了什么?水表面的小分子紧紧地连在一起,形成了一张网,这叫做表面张力,它让水不能从丝袜的小孔中漏出。除非你用手指触碰丝袜,当你的手指被丝袜弄湿后,水便会不断地漏出来。 What do you need? A dry stocking A glass filled with water Get started! Pack some water in the glass, cover it tightly with stockings, and then pour it over. What happens? Small molecules on the surface of the water are tightly linked together to form a web, called the surface tension, which prevents water from escaping through the pores of the stockings. Unless you touch your stockings with your fingers, water will leak continuously as your fingers are wetted by stockings.