I eat property in Datang

Chapter 154 Which Is Higher?
"Oh!"

Wang Qingyun smashed the case heavily.

"What are you doing to eat? Let those three little girls turn over. Didn't I tell you that I must suppress their tofu shop and let no one buy their tofu? Now their tofu is sold directly. Sold out, sold out..."

Wang Qingyun roared, spitting on the faces of several servants of the Wang family who were responsible for this matter.

"Young master, we did as you ordered. No one bought Du Sanniang's tofu at the beginning. She almost couldn't pay the rent and was kicked out. But I don't know where she learned some novelty of tofu. In addition, it was also given to neighbors and other merchants in Dongshi for free.

Those people felt good after eating it, so they went to buy it one after another. This is the special situation today, but we can guarantee that only this time, no one will buy it tomorrow. "

"Hmph! It's better to be like this, otherwise I'll break your legs, and you won't be able to handle such a trivial matter! What do you want?" Wang Qingyun was already irritated during the day, but when he heard the bad news, his lungs were so fast It exploded.

Why did it go so smoothly in Chang'an this time?

You can't handle a few cheap lives with your legs.

If it is sent back to Taiyuan, those few jokes must not be made.

He, Wang Qingyun, is definitely not wrong to fail.

Several servants of the Wang family were frightened and obedient, and hurried down to do things.

…………

The next day!

Huang Meng went to the arithmetic hall to teach counting as agreed.

In order not to affect Huang Meng's going to the Guozi Academy, Wang Xiaotong specifically asked the students of the Mathematical Academy to arrive half an hour earlier.

"Everyone, I don't know if you have done that experiment after you go back, and what is the result of the experiment?"

Huang Meng walked to the middle and looked at the crowd and asked.

Some students stood up and said: "I did it several times, and found that two objects of the same material, regardless of size, fell to the ground at the same time."

Huang Meng looked at Li Tai.

Li Tai snorted and said, "Almost!"

"Okay! It seems that you all have countless talents, and you are all people who can become great talents. In everything, practice is the only criterion for judging the truth." Huang Meng paused and said:
"Today we are doing a little experiment."

Experiment again!

Everyone is extremely emotional.

It is not simply about formulas and exercises.

Everyone in the Mathematical Academy felt strange.

Even Wang Xiaotong has a strong interest.

Huang Meng took out a candle and flint and steel from the bag he brought.

Light the candle.

Huang Meng pointed to the burning part of the lit candle and said: "Everyone, watch out, this lit candle has two colors visible to our naked eyes from the beginning.

These three colors represent three temperatures respectively.

The dark blue flame part of the candle wick is the inner layer called the flame core; the dark red or light yellow flame part is the middle layer called the inner flame; the last layer, which looks like a gray smoke layer, is the outer layer, also It's called Waiyan. "

"There are so many details about a candle flame!"

This is a very common thing, and no one usually pays much attention to it, let alone observe and summarize it.

Huang Meng said: "Then here comes my question, whether this candle has a high flame center, or an inner flame height, or an outer flame height."

"Uh... it should be the place called Nei Yan!"

"I guess so!"

"It's so stupid, it's still guesswork, but Ken's inner flame is high, and the place where you don't see it is the brightest."

Everyone chattered.

Huang Meng looked at Li Tai, Li Tai said: "Inner Flame."

Huang Meng smiled slightly, and then looked at Wang Xiaotong again.

Wang Xiaotong said: "Experiment is the only criterion of truth. Since it is used for discussion, I guess it must not be that simple, but I guess it must not be Yanxin."

"Shh..."

"Dr. Wang, you are so cunning!"

"Hahaha……"

Huang Meng was also entertained by Wang Xiaotong's return.

This old man seems to have learned a lot from eating and drinking.

"Which one of Huang Dameng's temperature is higher, you just talk about it." Li Tai couldn't wait to find out.

Others are similar.

Huang Meng said: "It's not easy to know, you can come up one by one and stretch out your index finger and put it on the inner flame part first, then put it on the outer flame part, and you will know the answer."

"It really isn't Yanxin, Dr. Wang guessed it right."

"Who's going to wipe it?"

Everyone, you look at me, I look at you, no one wants to wipe it.

After all, you warm your fingers.

"Why, there isn't a single warrior in the majestic Mathematical Academy, they are all cowards, and they don't even have the courage." Huang Meng couldn't help shaking his head seeing that there were a lot of chatter below, and they would only quarrel, but no one dared to wipe.

"I'm coming! My old Cheng is here to wipe it off, you cowards." Cheng Chumo stood up, sprayed a word and walked over.

Yuchi Baolin behind also said: "Count me in, I want to see which place is hot, so I can learn a little bit about barbecue in the future."

Damn, you learn to count just for the convenience of barbecue!
The crowd was speechless.

But soon their eyes and attention were cast on Cheng Chumo's index finger.

Cheng Chumo wiped the inner flame first and then the outer flame as required.

When I wiped the inner flame, I didn't feel much, but when I reached the outer flame, I immediately withdrew my hand.

"Si, it's terrible, the temperature of the outer flame is so high, why didn't I notice it before."

"Really iron bull." Yuchi Baolin also approached and stretched out his hand to wipe it.

He had the same reaction as Cheng Chumo, then grinned and said:

"Grandma's, this flame looks like it's not burning, but it's hot."

Huang Meng asked the two of them to go down, and then said to everyone: "Okay, someone has wiped it, and the answer is that the temperature of the outer flame is higher. In the future, when you are warming up or grilling meat, you don't need to lean things against the inner flame, but slightly outward. Move it a little, but it will heat up faster."

It turned out to be unremarkable, and the temperature of the outer flame that was ignored in life was higher.

This subverted everyone's cognition.

"That's right! If anyone still doesn't believe it, you can wipe it." Huang Meng looked at Li Tai.

Half of Li Tai's face darkened, why did he always look at me, and I didn't say I didn't believe it.

Wang Xiaotong said: "I'll take a swab and set an example for a teacher. After I finish swabbing, I hope everyone can believe in this conclusion instead of having doubts."

Wang Xiaotong wiped it himself twice, and finally withdrew his hand, saying: "Yes, it is indeed the case, but I don't know why, and what is the relationship with counting."

Strictly speaking, this is chemistry knowledge.

However, mathematics, physics and chemistry are not separated.

Huang Meng explained with peace of mind: "Combustion needs something called oxygen in the air. The more oxygen there is, the more complete the combustion will be; the flame core is incomplete due to insufficient oxygen supply, and the temperature is the lowest.

The inner flame gets more oxygen, so the temperature is higher than the inner flame; the outer flame is in the outermost layer and has the most contact with the oxygen in the air, so the more complete the combustion, the higher the temperature naturally. "

"As for the relationship with counting, it is probably that the larger the oxygen value, the easier it is to burn, and the more fully it burns. Therefore, the firewood in the stove should not be too full in daily life. Enough air must be left in to burn more fully. .

The same is true for blacksmithing. If you want the temperature to be high, you must blow air to transport oxygen. As for how to transport it and how much it will continue to deliver, this is a matter of counting. "Huang Meng grinned and said:
"The essence of this lesson is actually to tell everyone a common-sense truth. It is not very useful for learning numbers. After all, it is difficult for ordinary people to use it to make any contribution to Datang."

(End of this chapter)