Listening to Zhang Zi'an's explanation, everyone suddenly realized that this bobbit worm was mixed in this way.

Electrician Wu kept complaining about Zhao Welder, complaining that he knew that he was bent on saving money, and if he bought ready-made live stones from the aquarium, there would be no today...... It's good now, my baby grandson was almost bitten, what should I do?

In fact, everyone knows that even if the little grandson of Wu electrician just now put his hand into the fish tank to catch the sand silkworm and try his gall, he will not necessarily be bitten by the bobbit worm, after all, the bobbit worm is not stupid, and the child's arm is much thicker than the sand silkworm, and it is not included in its recipe for the time being. But Wu Electrician was angry, so everyone didn't add fuel to the fire.

Zhao welder was at fault first, and he could only endure being complained.

In order to atone for his crimes, he immediately went to the kitchen to get a bottle of disinfectant water, which he was about to pour into the fish tank and poison the Bobbit worm.

Zhang Zi'an stopped him and told him not to be impulsive, there is too much water in the fish tank, not to mention a bottle of disinfectant water, even if a box of disinfectant water is poured into it, I am afraid it will not reach the lethal dose, and the bobbit worm is a notoriously tenacious arthropod, and the disinfectant water may not be able to poison it.

Wang Qian sighed and said, "The chicken tastes crunchy - it's a pity that Bei Ye is not here." ”

"Even if Bei Ye doesn't eat this thing!" Li Kun complained.

Wang Qian objected, "Maybe Bei Ye is interested in challenging it." ”

Zhang Zi'an asked: "Master Zhao, did you just say that you have a water pipe at home? borrow it, and by the way, find some containers such as water basins and buckets." ”

"Okay, you wait. "Zhao Welder is now the master of the six gods, and what others say is what it is.

He ran to the kitchen, tossed and turned, and returned armed with a bucket in his hand, a basin under his arm, and a water pipe coiled around his shoulder.

"Are these okay?" he asked.

"Okay, no problem. Zhang Zi'an nodded, looked at the children who were a little scared and overwhelmed, and said with a smile: "Children, today I will demonstrate to you a simple scientific principle, called the siphon phenomenon. ”

If there are other adults present, such as the daughter-in-law of Zhao welder, the children will definitely be asked to hide in other houses so as not to be scared or injured. But Zhao Welder is a rough man, and Wu Electrician was dizzy again, and no one thought that the children should be avoided for the time being.

The children stood by the wall in a dilemma, without the instructions of the adults, not knowing whether to leave or stay, they were somewhat frightened, even the most skinny children were honest at this time.

Zhang Zi'an noticed this, and in order to avoid their psychological shadows in the future, he simply took advantage of the situation and used scientific experiments to divert their attention.

Girls of this age may not be interested in scientific experiments, but these little boys are all naughty boys, full of curiosity about the world, and want to go into the dog hole on the road......

Sure enough, as soon as they heard that they were going to do a scientific experiment, they all became interested and surrounded them.

Zhang Zi'an inserted one end of the water pipe into the fish tank, put a bucket on the ground, and inserted the other end of the water pipe into the bucket.

The fish tank is placed on a wooden shelf built by Zhao welder himself, and the bottom of the tank is more than half a meter above the ground.

Seeing this scene, the adults knew what Zhang Zi'an was going to do, but the children didn't know.

He glanced at the adults and ordered, "Don't be idle, bring all the boiling water bottles at home, and start boiling water now, the more the better—wait for us to flood the Seventh Army!"

Zhao welder and Wu electrician woke up like a dream, turned around and entered the kitchen again, the electric kettle and gas stove went into battle together, boiling pot after pot of boiling water and pouring it into the thermos for later use.

Zhang Zi'an squatted down, held the other end of the water pipe, and motioned for the children to see, "Do you think that water can automatically flow from the fish tank into the bucket?"

The children shook their heads when they saw the high end of the pipe stuck to the bottom of the fish tank, but the pipe was bent like a mountain peak by the wall of the tank, and then the lower end was stuck into the bucket.

"Definitely not, it's so high in the middle, the water can't flow up!"

"That's it, the water flows low, uncle, you can't do this, you have to let the pipe be flat!"

"But I don't think there's a way to settle it...... Do you need to fill the tank with water first?"

They chattered and chattered.

Wang Qian and Li Kun shook their heads helplessly, saying in their hearts that Shizun pretended to be forced and addicted in front of primary school students......

may always be called uncle by Shihua, Zhang Zi'an's cheeks twitched when he heard this, and he emphasized: "You look like an uncle?

Elementary school students: "......"

Zhang Zi'an said: "Do you think it's okay?

As he spoke, he lowered his head and sucked at the low end of the pipe, and saw the water pouring in from the high end of the pipe, past the highest point, and straight down, so he removed his mouth and plunged the low end of the pipe into the bucket.

An interesting phenomenon occurred, although he no longer sucked, the sea water in the fish tank continued to flow down the pipe.

The children were all stunned, and some reached out and pulled the water pipe, but the water pipe was not affected, and the water continued to be pumped out of the fish tank.

The bucket was soon full, Wang Qian had already prepared the basin of water, and then, Li Kun carried the bucket to the toilet and poured it out and brought it back, and the two took turns to alternate.

There is a lot of water in the fish tank, and it can't be pumped clean for a while, Zhang Zi'an took the opportunity to explain: "If you look at the weather forecast, you should often hear the word 'atmospheric pressure', the air has air pressure, because although the air is light, the atmosphere is very thick, and it weighs heavily on each of us......

He explained the principle of siphoning as concisely as possible, and his mouth was dry. He hadn't been exposed to physics for a long time, and some details may not be entirely correct, but the general principle is clear.

The children seemed to understand what they didn't understand, and they tried it themselves with a few thin tubes, and sure enough, they succeeded.

They may not be able to understand the principle for a while, but at least they remember this interesting phenomenon.

After Zhang Zi'an finished explaining, the water in the fish tank was almost pumped out, even the bottom sand was almost cleaned, the sand silkworms squirmed their bodies and had nothing to hide, and a few small fish fluttered their tails and struggled in the remaining water.

The bobbit bug was hiding inside the reef and still hadn't appeared, probably sensing something unusual and having a premonition of impending disaster.

The remaining thin layer of water really couldn't be pumped out, so Zhang Zi'an fished out all the small fish and put them in the bucket with a fish fish, saving the sentence "the fire at the city gate affected the pond fish......

"Okay, let's go out and play—don't just play and forget the principle I just talked about! Big brother, I spent a lot of spittle, and a lot of brain cells died!" Zhang Zi'an waved the children away.

The children made a fuss for a while, discussing who they would go to next, and then ran away in a swarm.

Wu electrician and Zhao welder boiled pot after pot of boiling water, filled all the containers that could keep warm at home, and borrowed a few thermos from neighbors.

Zhang Zi'an greeted him, and everyone present, including Jiang Feifei, was all gearing up, rolling up their sleeves and preparing to fight the Bobbit Bug.

Everyone picked up a thermos or kettle, gathered around the fish tank, and poured the boiling water down the reef with a bang.

The fish tank suddenly rose with a hot mist.

Everyone put down the empty containers, picked up the full containers, and continued to pour boiling water on the reef.

The hapless silkworms were soon all scalded to death and floated on the surface of the water at the bottom of the tank.

Zhang Zi'an reminded: "Everyone be vigilant, that bobbit worm may come out at any time, don't be so scared that you throw the thermos into the tank......"

Before the words fell, a black-brown figure rolled out of the reef, obviously burned to death, and there was no way to hide it.

Jiang Feifei instinctively exclaimed, but fortunately he held the boiling water shell and didn't let go.

The faces of those present were all pale, because the bobbit worm was longer than expected.

This is a one-and-a-half-meter fish tank, Zhang Zi'an originally estimated that it was half a meter long, but in fact, its body was not fully extended, and it was already more than half the length of the fish tank.

It was steaming all over its body, circling around the fish tank over and over again, its hideous mouthparts closing one by one, taking countless steps, and even trying to climb the wall of the tank and escape.

However, it will be poured boiling water wherever it runs, and it will be poured down when it climbs the wall of the tank.

As the tank filled with more and more hot water, the super-tenacious arthropod moved more and more slowly, finally stopping its movement after being poured off the walls of the tank for the last time, and floating on its back on the water.

There is a saying that "a hundred-legged foot is dead but not stiff", everyone is afraid that it is pretending to be dead, or not dead, and poured a few bottles of boiling water on it, seeing that it has never moved, then they breathed a sigh of relief and wiped off the sweat beads on their foreheads due to excitement, nervousness, fear, nausea and other emotions.

Wang Qian and Li Kun put down the thermos and took out their mobile phones to take pictures and videos, ready to show off on Moments.

Zhao Welder stared at the reef worriedly and asked, "Will there be any more in there?"

"No, the reefs are safe – so much boiling water, all but a few microbes are probably alive. Zhang Zi'an said firmly.

"Really?" Zhao welder was still not completely reassured.

Zhang Zi'an borrowed gloves from him and moved the steaming reef away piece by piece.

After the last reef was removed, the remains of several small fish appeared below, which had been eaten beyond recognition.

"No wonder the little fish here are missing one after another, and you can't see the dead fish alive or the corpses......" Wu Electrician shook his head and sighed, pointed at Zhao Welder and said: "You, grow your heart! Your retirement salary is quite a lot, and you really lack these few dollars?"

Zhao welder was apprehensive, nodded and said, "Old Wu, you are right, I won't dare in the future...... It just so happens that the water has been pumped out anyway, so why don't I buy some sea salt and learn to match it with artificial seawater - boss, let's buy it together, can it be cheaper?"

Everyone was speechless.

Wang Qian pointed to the corpse of the bobbit bug and asked, "What about this bug?"

"It's cooked, let's go back and stir-fry the dishes." Li Kun replied.