近来,我做了一次实践操作,发现了一种有趣的现象。首先,拿出两个相同的气球,把其中的一个气球打满气,再把另一个气球也打上气。不过,第二个气球要比第一个气球打的气少。然后,拿一根通气管,接通两个气球的进出气口,让两个球内的气可以自由流动。最后,捏住通气管的中间。聪明的 Recently, I did a practical operation and found an interesting phenomenon. First, come up with two identical balloons, fill one of them with a balloon and then another. However, the second balloon to play less than the first balloon. Then, take a snorkel, connected to the two balloons of the inlet and outlet, so that the two balls of air can flow freely. Finally, pinch the middle of the snorkel. clever