The post-00 principal took over, and students all over the network went crazy

Chapter 262 Chapter 262: A lighter is enough

Su Jing played with the balloons in his hands and replied: "Among the balloons released for the first time, except for the four animal balloons that are visible to the naked eye, there are relatively few small balloons, only 1."

"Although pigeons were the protagonists the second time, more small balloons were released, [-] of them."

Yang Chaoyue: "Speaking of pigeons, flying out in such dense numbers is really dazzling."

Su Jing understood that she wanted to ask how many pigeons there were.

He replied: "There are not many pigeons, only eight hundred."

Su Jing originally wanted to raise thousands of pigeons, but the breeding farms did not have such a big pigeon cage.

Yang Chaoyue: "Wow, eight hundred is quite a lot."

"They are flying among [-] balloons. It is quite a spectacular scene."

Thinking of the scene of pigeons and balloons flying together, Yang Chaoyue felt that it was worthwhile to come to No. [-] Middle School to shadow and photograph celebrities.

There is a kind of regret that makes up for not enjoying campus life.

"That's right." Yang Chaoyue was so excited that she almost forgot the main content of this interview. Fortunately, balloons were mentioned in the previous sentence.

So, she followed what she just said and asked: "Speaking of balloons, I saw on the barrage that some viewers said that balloons pollute the environment."

"Principal Su, can you explain the knowledge about balloons to everyone?"

Yang Chaoyue couldn't say it was the judges who raised the issue, so she had no choice but to pass the blame to the audience.

Besides, there are indeed "some viewers".

Although it was not said that it was the judges in the studio who said it, everyone knew it.

Another thing is that although Yang Chaoyue doesn't read much, her emotional intelligence is still very online.

She did not directly ask about the material of the balloon, but asked Su Jing to tell everyone about balloons.

Su Jing knew the questions of this interview from the beginning, so he naturally understood what Yang Chaoyue meant.

He said: "Balloons on the market now are generally made of degradable materials."

"One of them is latex."

"Latex balloons are made of [-]% natural latex without any fillers or substitutes added. The material has high strength, high elasticity, uniform thickness, and can maintain helium for a long time."

After briefly talking about how common balloons made of degradable materials are on the market, the focus turned to explaining what material the balloons they used were made of.

Su Jing shook the balloon in his hand and said, "The balloons we are releasing this time are all made of latex."

"And our goal is just for the balloon to float."

"So the gas inside is not hydrogen, but a mixture of helium and air."

"It will explode on its own when it rises to a certain height. It will be [-]% degraded after falling into the soil for a week. There is no problem of environmental pollution."

If everything is filled with helium, the price is really expensive.

Therefore, a certain ratio is used to mix it with air to reduce costs.

After Su Jing finished speaking, the fans in the live broadcast room felt so happy watching the guest who raised this question get slapped in the face.

[Look, look, the questions you can think of, how could Principal Su and so many teachers not think of them? 】

[Look inside the small frame. Some of the guests don’t seem to have very good expressions. 】

[Judging from these things, it also proves that Principal Su is really thoughtful about things!Every time the judges raised questions, No. [-] Middle School always gave perfect answers, just like the last time I went to Tengwang Pavilion. 】

But some viewers didn't buy it.

They felt that it was just Su Jing's one-sided statement.

[Who knows whether what he said is true? We can’t tell. It’s not up to him to have the final say. 】

[Yes, and there are so many, maybe only a small part is latex, and most of them are non-biodegradable? ] The judges in the lower right corner naturally saw the audience’s doubts.

Therefore, Ye Yuan made a request: "Please prove it to Principal Su."

Su Jing didn't have a microphone, so naturally he couldn't hear Ye Yuan's voice. Only Yang Chaoyue heard it.

Yang Chaoyue was helpless and conveyed: "Then Principal Su, how should we distinguish between latex and hydrogen balloons?"

Su Jing replied: "The method of distinguishing materials and gases is actually very simple."

"All it takes is a lighter."

As he spoke, Su Jing took out a lighter from his coat pocket.

He opened it directly and burned it towards the balloon in his hand.

The moment the firelight touched the balloon, it exploded with a bang.

There was no other reaction except the sound of an explosion.

Su Jing explained: "Although hydrogen and helium are both colorless, odorless, non-toxic, low-density gases, helium He is very stable in nature and is generally used as a protective gas; hydrogen H is the gas with the lowest density and is very active in nature. , flammable and explosive."

"Everyone should have noticed just now that I directly brought the lighter to the gas. Apart from the explosion of the balloon, it did not cause any combustion."

After testing the gas, Su Jing bent down to pick up the fragments of the balloon that exploded on the ground, and continued to open the lighter.

"Latex can be burned to ashes," he said as he lit the fragments in his hand.

After lighting the Sujing, he put it directly on the ground because it was hot to his hands.

Yang Chaoyue's camera zoomed in on a small flame burning at Su Jing's feet.

In order to prevent the audience from saying again that only the balloon in his hand was a latex balloon, he deliberately took a intact balloon next to him and burned it.

After burning for a while, the fire went out, leaving behind a small ball of dark ashes.

Su Jing stretched out his right hand, picked up a little black powder with his thumb and index finger, and rubbed it back and forth in his hand: "This has been burned to ashes."

In this close-up, you can clearly see the remaining dust on Su Jing's fingers.

At this point, the audience and some judges have been given a result.

Su Jing quickly rubbed his fingers to wipe off the dust on his fingers.

He stood up and the camera moved to his face.

Su Jing said seriously and solemnly: "As for whether all the balloons released are the same as those in my hand."

"I can't prove that."

"It will be good if we have a clear conscience as soon as we are in high school."

Su Jing told the truth.

You can't let him catch the balloon that was released to prove it, right?

"Ah." Su Jing didn't want to dwell on this issue with them anymore, so he changed the subject: "That's right."

"My demonstration just now was wrong. You can't imitate me and play with fire indoors."

Yang Chaoyue could tell that Su Jing planned to stop there.

So he continued what he said: "Thank you, Principal Su, for your patience in popularizing science."

"At the same time, audience friends should also remember Principal Su's friendly reminder."

Yang Chaoyue originally wanted to say something fair for Su Jing. After all, she just saw the helium bottle in the storage room.

However, Su Jing didn't want to continue this topic, so he simply stopped talking.

(End of this chapter)