"This one does! But not in the direction of the West Mountain, the terrain is high, and there must be a waterwheel to draw water. Cao Huaimin thought seriously before he said.

"Then let's make a waterwheel." Hong Lianshuo smiled and nodded.

"Good!" Cao Huaimin replied with a smile.

"Are the shovels and pickaxes we burn all wood?" Hong Lianshuo looked directly at Cao Huaimin and asked, "Use wood to melt the damaged weapon into molten iron." ”

"That's right! What do you use without wood? Firewood is used to burn fire. Cao Huaimin looked at her with dark eyes and said, "What does Lady Hong think?" ”

"No, no?" Hong Lianshuo shook his head slightly when he heard this.

Now there is no coal, it is not so easy to find a coal mine, and even if you find a coal mine, digging coal is hard work, and you can't dig it for a while.

Hong Lianshuo's eyes flickered slightly, and he suddenly remembered and said, "Is there anything to help the fire?" ”

"Combustion?" Cao Huaimin scratched his head and looked at her in confusion and said, "Can you be specific?" ”

"That's it?" Hong Lianshuo thought about it seriously and said, "It's just that the fire is not prosperous, so I blow into the stove." He pursed his lips and said, "There is a saying." He patted his thigh and smiled, "I think about it, I don't know anything about blowing fire with a rolling pin!" ”

Cao Huaimin finally understood, smiled and said, "Now you don't need bamboo pipes to blow fire, like blacksmiths use skins to blow wind and smelt iron." This skin is thin at both ends and bulging in the middle......"

"I know." Hong Lianshuo nodded knowingly and said, "Squeeze." ”

"Yes, yes, yes!" Cao Huaimin said with a smile.

"Nothing else?" Hong Lianshuo looked at him expectantly and asked.

"Nope." Cao Huaimin looked at her with dark eyes and said, "This skin bare wind has been blowing since the Spring and Autumn Period and the Warring States Period. It is also known as a windbag made of cowhide; Gong originally referred to wind-blown instruments, and blacksmiths also called them air pipes. The technology of iron smelting in the Han Dynasty was greatly developed, which was closely related to the improvement of the power of the smelter. ”

Hong Lianshuo frowned lightly when he heard this, and said, "This is too tired!" The hand has to be squeezed continuously. ”

Cao Huaimin was stunned when he heard this, and then smiled, "There are feet to step on, and besides, if you are used to this, you can't talk about being tired." ”

Hong Lianshuo stroked his forehead, this bellows has no pattern, how should grandma's be transformed?

Wait a minute, skin blast improvement? Hong Lianshuo looked at Cao Huaimin with green eyes and said, "Can't this skin blower be improved?" ”

"Uh......" Cao Huaimin pursed her lips and said, "I can't tell you this, I'll draw it for you!" As he spoke, he poured water directly onto the small square wooden table, "It has three wooden rings, two round boards, and is made of leather. Pull open the tau, and air enters the puff through the intake valve; The air in the leather is compressed, and the air in the lobe enters the air duct through the exhaust valve, and finally enters the smelting furnace. ”

Hong Lianshuo's eyes were shining and his eyes were shining, and the corners of his eyes and eyebrows were full of smiles, which could be improved, "This skin blower is one-way, can it be changed to two-way?" He dipped his index finger in the water and drew it, "And it's hard to find animal skins, so they are made of wood!" If you want to do as much as you want, you can approach thousands of households. ”

Cao Huaimin twisted his beard and stared at the blower device she painted, "You seem to be what Lao Tzu described: between heaven and earth, it is still like a dragon?" Void but unyielding, moving and getting more and more. ”

Hong Lianshuo was stunned for a moment, and then nodded hurriedly, "Mmmm! The more it pushes and pulls, the more air volume it gives. Isn't heaven and earth like a bellows? It is empty, but it is not endless. ”

Hong Lianshuo's painting is actually a bellows, which was used by every family in later generations to cook on fires, with a brick stove and a bellows next to it.

After filling the pot with water, light the firewood and put it into the stove, pull the bellows with your right hand, and add firewood with your left hand.

The bellows consists of a rectangular box with an air inlet at each end of the box: when the rectangular box is pulled out by hand, air is sucked in from the far end; As it is pushed, air is sucked in from the proximal side. In both inward and outward processes, air is sucked into the box; In both cases, the compressed part of the air is pushed into one side chamber, where it is expelled through the exhaust port.

"You can get a carpenter to do it." Cao Huaimin's eyes flashed with a gleam and nodded.

"It's better to hurry, our blacksmith needs it the most, Wen ......" Hong Lianshuo braked suddenly, swallowed the degree, pursed his lips and changed his words, "It's easier to strike iron when the fire is hot." ”

"I'll go when I'm done." Cao Huaimin immediately said when he heard this.

"Can't you go now?" Hong Lianshuo looked at him eagerly and said, "Isn't this pattern there?"

"It's not okay to rush! Look at this pattern dry. Cao Huaimin's smiling black eyes looked at her in a hurry, and his index finger pointed to the watermark pattern on the small wooden table that had been blown dry by the wind.

"I'm too anxious." Hong Lianshuo lowered his eyebrows embarrassedly and chuckled.

"I'm also anxious, if it can be as we expected, it will be a huge improvement for iron smelting." Cao Huaimin looked at her with sparkling black eyes and said, "I will keep an eye on it as soon as possible, this is too important." ”

"Uh-huh!" Hong Lianshuo nodded again and again, "Call me when you're done." ”

"Let's see how it goes?" Cao Huaimin said with a smile, arched his hand at her, and said, "I'm going to go in and draw a pattern." ”

"Don't delay you, I'm leaving." Hong Lianshuo followed with arched hands, put down his son and lifted his feet to leave.

"We're gone, too." Han Baohu stood up and arched his hand.

Cao Huaimin watched them leave, then turned around and went back to the house, continued to draw the house pattern, and waited for the red bricks to be ready and build the house.

Several kilns are burning bricks day and night, and it should be soon.

&*&

"Nan Zheng, let's talk about the ancient today, I listened to the tail, and I saw that you are quite disciplined, and this plank is used." Han Baohu looked at him with a smile on the corner of his mouth and said, "The Chu and Han sides are clearly written above. ”

"Hey! Don't say it, this face has already been lost. Lin Nanzheng stroked his forehead and said embarrassedly, and said with a red face, "I have never been so ashamed in my life." ”

"What's going on?" Chen Zhongyuan's big bronze bell-like eyes looked at him with curiosity and said, "Nan Zheng teaches the brothers to write, but they are patient, and they can teach well." ”

"Yes! After reading and writing this, the brothers memorized a lot of words. Sixi snorted and said, "There are few mistakes, and the big chicken thighs are not less." ”

"Hehe......" everyone laughed.

Chen Zhongyuan looked at Lin Nanzheng with puzzled eyes and asked, "What's wrong with this?" ”

"You're familiar with history." Han Baohu tilted his head slightly and looked at him and said, "This shouldn't be difficult for you!" ”