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把一只气球吹足气,系紧口子。再用一块透明胶布(橡皮膏也可)贴在气球上,拿一根针从贴着透明胶布的地方把气球扎破,你想想看:气球会不会“啪”的一声爆炸掉?你也许认为气球要爆炸了吧!其实,气球不会“啪”的一声炸掉。在一般情况下,用针扎破气球,气球肯定会爆炸。现在的情况不同,你会看到气从针孔处徐徐冒出来,气球却像消了气的车胎一样慢慢瘪下去。这是什么道理呢?原来,气球扎破时,溢出
Blow a gas balloon, tie the hole. Then use a piece of transparent tape (adhesive plaster can also be) attached to the balloon, take a needle from the place where the transparent tape affixed to the balloon punctured, you think about it: the balloon will not “snap ” as soon as the explosion You may think that the balloon is going to explode! In fact, the balloon will not “snap” blow out. Under normal circumstances, the needle punctured balloon, the balloon will definitely explode. Now the situation is different, you will see gas slowly emerge from the pinhole, the balloon is like the gas-filled tires slowly deflated. What is the reason? It turns out that when the balloon is broken, it overflows