It is OK also to hear of boiled water pisciculture, my uncertainty, so I want to do an experiment to prove this view.
听说开水也可以养鱼，我半信半疑，所以我想做一个实验来证明这个说法。
Go on wheels to allow this test, I prepared these data: The tube of a replete water (notice water is normal temperature condition) , a healthy small fish, a spirit lamp, bracket of an experiment tube, and a thermometer.
为了让这个实验顺利进行，我准备了这些材料：一根装满水的试管（注意水是常温状态），一条健康的小鱼，一盏酒精灯，一个实验试管支架，以及一根温度计。
The experiment began! Above all I get on test tube wearing to bracket, maintain about 15 degrees gradient with the desktop, put small fish carefully in test tube again, the fish can be now in test tube free land move about. Next I ignite spirit lamp, clip test tube with clincher, let test tube tilt put in upper part of spirit lamp blaze, in the meantime, I ask mom to assist my general thermometer to extend the temperature that tests water into test tube, till till test tube the water in is burned.
实验开始了！首先我将试管架到支架上，与桌面保持约15度的倾斜度，再把小鱼小心放到试管里，现在鱼可以在试管里自由地游动。然后我点燃酒精灯，用夹子夹住试管，让试管倾斜放在酒精灯火焰上方，同时，我请妈妈协助我将温度计伸入试管测试水的温度，直到试管里的水被烧开为止。
In whole experiment process, I observe, before water was not heated, small fish is free in water move about, and after water is heated, the position of small fish move about moved to be in slowly test tube is bottom, although water is boiling, dan Xiaoyu was not ironed dead really.
在整个实验过程中，我观察到，水没有被加热之前，小鱼在水中自由游动，而水被加热后，小鱼游动的位置慢慢移到了在试管底部，即使水在沸腾，但小鱼的确没有被烫死。
This is too magical, what mystery to have among them? I examined a data, so this is a heat bilges cold the principle that shrink, the meeting after the water of test tube coping is heated expands, density decrescent, and bottom water did not heat, density is bigger, this meeting brings about the water density in test tube statified, cannot move up and down thereby commutative quantity of heat, bottom and appropriate water is so warm still can let small fish survive.
这太神奇了，其中有什么奥秘呢？我查了一下资料，原来这是一个热胀冷缩的原理，试管顶部的水被加热后会膨胀，密度变小，而底部的水没有加热，密度较大，这会导致试管里的水密度分层，从而不能上下运动交换热量，所以底部适宜的水温仍旧能让小鱼存活。
This experiment not only test and verify boiled water is OK pisciculture, still tell me a truth: Everything complies with not blindly the conclusion of other, must oneself with one's own hands the experiment reachs correct conclusion.
这个实验不仅验证了开水可以养鱼，还告诉我一个道理：任何事情不要盲目听从他人的结论，一定要自己亲手实验得出正确的结论。