我心中有一个疑问:“为什么一个小小的纸片能托住一大杯水呢?”于是我去请教“电脑老师”原来,纸可能托住水是因为有大气压力,纸下方的大气压力支撑住了纸。空气对我们周围的东西都有压力作用就产生了大气压。只要不让水流动,空气可能支撑住大约10米高的水柱。
I have a question in my heart: "why can a small piece of paper hold a large glass of water?" So I went to consult the "computer teacher". It turns out that the paper may hold water because of atmospheric pressure. The atmospheric pressure under the paper supports the paper. The pressure of air on everything around us creates atmospheric pressure. As long as water is not allowed to flow, air may support a water column about 10 meters high.
每一个实验都充满着许多科学道理,而且简单又有趣,身边有许多我们感觉不到的东西,只要我们仔细观察,细细品味就能发现。
Every experiment is full of many scientific principles, simple and interesting. There are many things around us that we can't feel. As long as we carefully observe and savor, we can find them.
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