Taming beasts starts with understanding bird language

More than an hour later.

The female soldiers then took a carriage and brought Lao Bai into the Central Plains camp.

Not long after, she led Lao Bai to Gu Chan's barracks, and then retreated to rest.

Lao Bai walked over to sit opposite Gu Chan and asked curiously, "Why did you ask me to come here so late at night?"

"Of course I'll check your homework! Do you think I won't check your homework because I'm busy these days?" Gu Chan said unhappily.

Lao Bai immediately sat up straight and said seriously, "Come on, let me show you the results of my study in the past two days."

"Seven or eight?"

"Fifty-six."

"Nine-three?"

"Uh... thirty-nine twenty-seven."

Lao Bai paused, his mind turned, and then he remembered the answer.

Gu Chan grinned and said, "Three or four?"

"String five."

"Six legs and eight legs?"

"String twelve."

Gu Chan nodded in satisfaction, "Well, not bad, you have made progress, and you are teachable."

"Are we still going to test linear equations of two variables?" asked Lao Bai.

Gu Chan shook her head and said, "I won't test you now, otherwise you will have to spend a long time calculating. Now that you are here, I will teach you some new knowledge, and then you can help me tomorrow."

"See, I knew that you called me here so late at night not just to test me." Lao Bai said speechlessly.

Gu Chan chuckled and stuck out her tongue playfully.

Lao Bai had no idea what to do with her, so he could only sigh and say, "Well, since I accepted you as my apprentice, I accept it. Please teach me new knowledge! Once I have absorbed the new knowledge, I will help you in any way you want tomorrow."

"Then let me teach you some physics knowledge today." Gu Chan said with a smile.

After saying that, she immediately took out a wine bottle, a hard-boiled egg and a piece of paper that she had prepared in advance, then lit the paper and put it into the wine bottle, and then placed the hard-boiled egg on the mouth of the bottle.

As the paper in the wine bottle burned, it caused a pressure difference, which directly sucked the egg in the bottle mouth into the bottle.

Old White watched with great interest and asked, "What's the principle behind this?"

"Fire needs oxygen to burn. The piece of paper just now burned in the wine bottle, consuming the oxygen inside, causing the air pressure inside the wine bottle to be lower than the air pressure outside the bottle. In this way, the air pressure outside forced the egg into the wine bottle." Gu Chan explained.

Lao Bai was confused after hearing this.

Seeing him like this, Gu Chan was really at a loss whether to laugh or cry.

You know, in modern times, this little physics experiment is something that people would learn in elementary school. In other words, modern elementary school students all know what the principle is.

But in this ancient world, this semi-immortal-level strong man who is almost a hundred years old doesn't know anything at all. Isn't this speechless?

Gu Chan could only say helplessly, "Don't you understand?"

"Yeah." Lao Bai nodded.

"It doesn't matter if you don't understand. You just need to remember that there is such a thing as air pressure in this world. In the future, when your spiritual energy is not enough to protect your body, you must pay attention to the air pressure difference. Especially when you are in water, the deeper the water, the greater the pressure." Gu Chan reminded.

Lao Bai nodded silently in agreement.

Gu Chan said with a grin, "That's all we have learned tonight. You can do this little experiment by yourself and understand the air pressure in your own way. Once you understand it, you can go to bed."

"Okay, then you go to sleep and I'll have some fun by myself." Lao Bai agreed.

Gu Chan said nothing more, and immediately got up, lay down on the bed and fell asleep.

The two days of military training were very tiring for her, and she soon fell into a deep sleep.

Lao Bai did the experiment over and over again until he finally broke the cooked egg, but he still couldn't understand the word air pressure.

In the end, he had no choice but to give up and lie down on the bed next to him to sleep.

It was still dark the next day.

“Boring, borring, borring…”

In the huge Central Plains camp, the familiar sound of gongs was heard again.

Tian Ying and the others were already used to it by now, and within an incense stick of time they all ran to the command building to gather, standing straight, no longer dragging their feet like they did in the previous two days.

Gu Chan and three others stood in front of everyone, and they all nodded with satisfaction.

Lao Bai whispered in Gu Chan's ear, "It seems that your special training over the past two days is still very effective. Their speed is indeed not slow."

"You must be kidding. A deputy general's head has been chopped off, how dare they be negligent?" Gu Chan said with a click of his tongue.

"Are you playing so hard?" Lao Bai said in surprise.

"Don't look at me, it's not me who plays, it's the Ninth Prince who plays." Gu Chan said, spreading his hands.

Lao Bai was just about to respond when Xuanyuan Qing, dressed in a black robe and green clothes, slowly walked out of the gate of the rear command building. When he came in front of Gu Chan and the other three, the incense stick in the incense burner had just burned out.

Gu Chan sneered and said, "Okay! You came down at the right time, right?"

Xuanyuan Qing glanced at Gu Chan provocatively, but ignored her. Instead, he clasped his fists and saluted to Lao Bai who was standing next to her and said, "Lao Bai, long time no see. I hope you are well."

"You little bastard, you even cheated my apprentice. You really don't give me face!" Lao Bai said angrily.

"Look at what you said. I only acknowledged him as my brother to give you face. Otherwise, I would have taught him a lesson." Xuanyuan Qing said with a dagger hidden in his smile.

Gu Chan's eyes widened as she asked, "Master, when did you two meet?"

"Last fall, he came to find me once in Renzong Trial Tower and asked me to teach him physical training. He also wanted to take me as his master, but I refused. Then he set up that chess game for me and said that if I couldn't solve it, I would take him as my apprentice." Lao Bai explained with a grim face.

Gu Chan's doubts were immediately resolved after hearing this.

After all this time, she only realized now that when she went upstairs to see Lao Bai, the unfinished chess game in front of him was set up by that brat Xuanyuan Qing!

After realizing this, she couldn't help but admire Xuanyuan Qing.

After all, Lao Bai has been unable to solve that game of chess since last autumn, which directly proves that this guy is still in dire straits.

Xuanyuan Qing laughed and said, "Old Bai, it's been more than a year. I wonder if you have solved the remaining chess game?"

"There is no solution to this game. This is my answer to you." Lao Bai said with his hands behind his back.

He had been trying to solve the problem for more than a year, but he still couldn't figure it out. Doesn't that mean there is no solution? He firmly believed that his point of view was correct.

Xuanyuan Qing laughed and said, "Master Bai, it seems that you really want to take me as your apprentice. That game of chess is not unsolvable, but has only one solution."

"A solution? Tell me about it?" asked Lao Bai, frowning.

"White's move of four out of four, White survives and Black is in danger, it can be called a god's move." Xuanyuan Qing said solemnly.

Lao Bai was stunned at first, then his eyes widened and he froze in place.

Thinking carefully about the endgame in his mind, he had to admit that if the white piece was placed in the position mentioned by Xuanyuan Qing, it would definitely be considered a godly move in this game!