The old man glanced at Huang Lei, showed a smiling face, then thought for a while, and spoke, "Mortise and tenon is the crystallization of the wisdom of ancient Chinese craftsmen. ”

"The protruding part is called tenon, also called tenon, and the concave part is tenon, also called mortise or tenon."

"It originated in the Hemudu era about 7,000 years ago."

"It can be broadly divided into three main types."

"One is mainly the joint of faces, the combination of two edges, the junction of faces and edges, and the other is the construction method as a point. It is mainly used for horizontal and vertical T-joints, angular joints, cross joints, and extension joints of straight and curved materials, and there is also a construction method that combines three components together and connects with each other. ”

"But the mortise and tenon structure has relatively high requirements for wood."

"If it's wood like plywood, it's hard to use it as a mortise and tenon structure because it's easy to crack."

Ling Rui listened to the old man's words and nodded, "Hmm." ”

"But because of this, the mortise and tenon of the log structure is extremely earthquake-resistant, and the Forbidden City experts and an American carpenter copied a model of the Forbidden City at a scale of 1:5, and carried out seismic simulation tests, when the magnitude reached 9.5, the model shook but still stood upright."

"Therefore, for more than 600 years, the Forbidden City has survived snow and frost and experienced more than 200 earthquakes, but it can still remain intact."

"It's amazing!"

"I see."

"Oh, that's amazing!"

"But why is the mortise and tenon structure of the log so earthquake-resistant?" Wang Zulan looked at the old man curiously.

"It also has to do with which structure it is." The old man smiled, then looked at Ling Rui, "Why don't you ask this little brother?" ”

Ling Rui raised his eyes, not knowing what this master was playing, so he spoke, "Dougong, if the weight of the eaves can be evenly distributed on each beam and column, the balance of the house can be stabilized, and the earthquake resistance will naturally be improved." ”

At this time, Ling Rui also put down the tools in his hand, spliced a set of Luban locks, and handed them to Peng Peng.

Peng Peng took it and looked up and down, left and right, "Brother Rui, is this the same as the previous one?" ”

"Hmm." Ling Rui nodded, "yes, what's wrong?" ”

"Yes...... How the hell is this dismantled? Peng Peng was helpless, because Ling Rui said that he couldn't check it on the Internet, so at present, the people present have not been able to unravel it.

"Isn't that a topic for you?" Ling Rui asked rhetorically, "There are several models now, you can try them yourself, come on, we believe you can." ”

Peng Peng: ...... It's so hard for me.

……

"Hahaha!"

"Poor Pemba."

"It's actually very simple! It's a pity they can't see us talking! ”

……

Ling Rui smiled and continued his work, carpentry is magical. In other words, some hands-on skills are magical, giving people a strong sense of achievement.

"Tear this down, trust me!" Chi Chi said to Peng Peng.

Peng Peng rolled his eyes, "I believe you're a ghost." ”

The three girls each took one and demolished it, but there was no progress.

The people next to him were anxious.

"It's so hard!" Xie Na was a little anxious, "I think...... How could this be a child's toy? ”

"It's not just a child's toy."

"It's really hard." The baby was also a little deflated.

Zifeng silently continued to dismantle it, and suddenly, he pulled out one of them, "I took it out!" ”

Everyone looked at Zifeng, and sure enough, the Luban lock on Zifeng's side had been dispersed.

"Sister...... Can you spell it back? ”

Zifeng: ......

"Why should I spell it back? I finally took it apart! Zifeng glared at Peng Peng, and wasted the power of nine cows and two tigers!

"That makes sense."

"Hahaha!"

Chi Chi looked at his "niece" and smiled so badly, sure enough, how cute she looked.

After more than an hour, Ling Rui stopped, because he had already done many sets, he also felt a little tired.

Others were sweating on their heads.

"Take a break." Ling Rui spoke, "Take your time, don't be in a hurry." ”

"Come on, come on, drink some water." He Jiong came out with freshly warmed milk, "Replenish your strength." ”

"I'm sleepy." Chichi yawned, took the milk, and said that they had come over in the morning, and they had not yet taken a nap.

"It's half past three, let's go sleep for a while." Ling Rui thought for a moment and said, "Especially girls." ”

"Why especially girls?" Wang Zulan looked incredulous, "Shall we also sleep in beauty?" ”

Ling Rui smiled and nodded, "Okay." ”

"Hey, I don't need to sleep in the beauty room, I take a nap." Chi Chi opened his mouth in disgust.

"yes, what the hell is beauty sleep?" Zheng Kai was also helpless.

"Zu Lan, ignore them, let's go, let's go to beauty sleep!" baby laughed and spoke.

"Let's go!"

"Dinner." Deng Chao thought for a moment and spoke, "Do you need our help?" ”

Ling Rui thought for a moment, "It shouldn't be needed." ”

"Okay, then I'll sleep until dinner." Deng Chao said with a grin.

Others: ......

"Go, go, go." Ling Rui waved his hand.

"Xiao Rui, don't you sleep?" He Jiong finished distributing the milk and asked, looking at Ling Rui.

"I'll squint for a moment, but I'll need to think about how to do it for dinner." Ling Rui was helpless and looked at the running men's group, "These seniors have ordered dishes that are difficult to make." ”

"Twenty-four bridges on a moonlit night."

"It's called a flower chicken."

"Good soup."

"Roast cabbage."

"Who listens to Luomei on the jade flute."

"Five dishes, six people came, who of you didn't order?"

Zheng Kai stood up at this time, "I didn't order it!" They forgot about me! ”

"Then don't order it." Ling Rui said again.

Zheng Kai: ......???

"Why?"

"Because your one must be the five treasures of mandarin ducks!"

Zheng Kai was slightly silent, "How do you know?" ”

"A Chinese sturgeon rewarded by the program team...... I guess I don't think I can use it steamed and eaten. Ling Rui sighed, "I must do something." Besides, you have to record for three days, you can't eat all the dishes in one day, right? ”

"So, I guess I'll only cook two of the dishes you ordered tonight."

Chen Kezhou picked up the speaker, "Xiao Rui's answer is correct, as for which two to do, you can consider it yourself." ”

"Whoever listens to Luomei won't do it first, and the ingredients program team hasn't given it yet."

"Tonight, let's take the twenty-four bridges and the bright moon night and burn the cabbage."

"It's all right!"

"Okay!"

"The five treasures of the five treasures of the mandarin duck, which are the five treasures?" Chen Kezhou looked at Ling Rui and asked helplessly, "Because I don't know it here, there is no way to prepare the ingredients." But I really wanted to restore this dish. ”

Ling Rui's brows furrowed slightly, "I'll think about it and reply to you before I go to bed at night." ”

"Okay."

"Well, I've already brought the ham." Deng Chao said hehehe.

Ling Rui smiled and nodded.

"Take a nap!"