Fenghou

Chapter 1340 Thoughts
The gray-haired old professor smiled and said: "Your Highness asked about the key point. In fact, we made this device in a month. The reason why it took two years is to study how to change the vertical force to the horizontal force. Our [-] Tai students and [-] craftsmen worked together to test various schemes. We also thought of changing the direction of the river, digging a horizontal ditch and adding a ring ditch to make the river flow from east to west into a north-south flow, but it is very troublesome. , and finally two craftsmen made it with swash plate gears."

The old professor opened a small door at the bottom. Chen Qing stepped forward, lowered his head and looked inside, but he couldn't see clearly inside, only a few big wooden gears were faintly turning, and the gears were slowly tilting, and finally turned into a sideways disk. turn.

"Not bad!"

Chen Qing repeatedly praised: "Who thought of the gear method?"

"It was thought of by our students. It was made by craftsmen. The next step is to make a mold and cast it into gears with copper water. It must be more durable than wood."

Of course, gears are not a new invention, they have been around for a long time. The hourglass and engraved leaks are driven by gears. The key is that students can think of using gears to transmit power, which is very remarkable.

At the same time, Chen Qing is also in favor of this model of student craftsmen, where students imagine and design, and craftsmen implement them.

The so-called insiders look at the doorway, and laymen watch the fun. Officials don’t care much about the mechanisms and skills inside. They care more about the use of this set of machinery. A camel or two cows can also pull the millstone, and at most two people can operate it, why spend so much effort to make such a device, it seems that at least dozens of cows can be bought for this cost, can your highness explain to everyone?"

Chen Qing said slowly: "Let's make an analogy! At first people used stone spears to throw hunting. Later, someone discovered that by tying a rope to an elastic stick, the wooden branches could be shot more than ten steps away. Everyone knows that , This is the earliest embryonic form of bow and crossbow, but this simplest bow and arrow is far less powerful than throwing spears, and it is not as good as throwing spears as far as throwing spears. Many people must have ridiculed and opposed it at the time, but those who studied bows and arrows did not give up. , Finally, there are today's god-armed crossbows, bed crossbows and large trebuchets, and this set of water-powered machines is the same, costing thousands of pennies, and the effect is no different from that of a camel, so why study it?"

Zhou Kuan blushed, and laughed at himself: "I still think too simply, thank you Your Highness for clarifying the confusion!"

Zhang Miao added, "You didn't think about it simply, but you spent thousands of dollars to make your flesh hurt. If it's cheaper than a camel, you're sure to sneer at the camel!"

Everyone laughed, and the atmosphere suddenly relaxed. Chen Qing said to the professor again: "Professor Yan, tell everyone, what is the use of this device?"

The old professor laughed and said: "The reason why this device is expensive is that it cost thousands of dollars to research it, including the construction of this stone house. In fact, its cost is only about a few hundred dollars. If it is replaced by pig iron, it will be even more expensive." It is cheap, and it has many uses, such as grinding flour, cotton ginning, oil extraction, spinning, rice milling, irrigation, stirring, such as making briquettes. Although animal power can also achieve the same effect, as His Highness said, We will continue to improve and invent new things based on it. For example, we invent a connecting rod device. Although it is useless now, it will definitely be useful in the future. There are also gears, which drive other objects to move delicately. It's something we never thought of."

Everyone unanimously agreed to vigorously develop hydraulic devices, and Chen Qing even made a statement immediately, allocating [-] yuan from the treasury to support the research and development of Taixue's mechanical devices.

When everyone came out of the stone house, Chen Qing asked Professor Yan: "Just now you said you invented a connecting rod device, what is it?"

Professor Yan said with a smile: "A student thought of it from the human jointed arm. The craftsman made an artificial joint based on his drawings. We call it a connecting rod. Pushing and pulling in front and back, it is like a hand turning a flat bottom. There are gears on the wooden disk, and the gear rotates, which in turn drives the larger gear next to it to rotate. However, this kind of connecting rod is suitable for the force of pushing forward and backward, and is not suitable for the rotation of water flow. Of course, it can also be used, but it is convenient without gears. .”

Chen Qing nodded, the connecting rod reminded him of a train and a steam engine.

He immediately smiled and said: "Let's do it! I will go to Taixue to give a class to your students in the morning after tomorrow, and I will call the artisans to listen in. I don't care about the status, as long as you have the ability, I will give you some inspiration!"

"Understood, I must arrange it!"

After returning from Weihe, it was still in the afternoon, Chen Qing didn't go to the official room, but went to Jubao Pavilion.

The shopkeeper of Jubao Pavilion was taken aback, and hurriedly invited His Royal Highness King Yong into the guest room, "Is Your Highness here to pick up the pearl necklace of the princess?"

Chen Qing shook his head, "I'm not here to pick up the necklace today, but the bead string is ready, so I can take it back with me."

"It's ready, the villain is going to send it to the palace tomorrow, please wait a moment, the villain will go and fetch it."

Chen Qing waved his hand, "I'll get it later, I'll get down to business first, find me your best goldsmith!"

"Your Highness, please wait a moment!"

The shopkeeper immediately went to the backyard, and after a while, a middle-aged man was brought up. His name was Li Si, and he was the most famous goldsmith in Jingzhao. He made it.

Li Si knelt down to greet His Royal Highness King Yong, Chen Qing asked him to stand up, and asked him, "How much can you do with fine things?"

Li thought for a while and said, "The villain once made a small flower basket, and the small flowers on it were woven with gold thread thinner than a hair."

Chen Qing nodded and said, "Do you have any long strips of gold foil rolled together?"

"There was a roll of silver chaff, and the gold chaff just ran out."

"Silver chaff is also fine, show me!"

After a while, Li Si sent a plate of silver rolls, which were very finely crafted and neatly made. It was exactly the style Chen Qing wanted, but unfortunately the silver was a little soft and inelastic. Chen Qing thought for a while and said, "I'll give you a piece of fine steel , can you make it into a thin roll like a silver bar?"

Li Si's eyes widened, and he said for a while, "I've never made pig iron before, why don't I try it."

"I know this is what a blacksmith does, but the blacksmith's craftsmanship is too rough to meet my fine requirements. Let's do this! Try both stainless steel and copper, and use whichever works. The key is to be neat. The thickness is the same, I will give you two days, if you can’t do it, I won’t blame you.”

Chen Qing didn't actually want to make clocks and watches, he just wanted to make a prop to let students know that there are many sources of power in the great world.

But Chen Qing still took it for granted. Ordinary metal materials cannot be used to make clock springs. It requires special steel with high strength, high toughness, and high elasticity, which is not available in this era.

Li Si didn't understand why, so he nodded, "I'll give it a try!"

It has always been Chen Qing's idea to make a clock. In fact, there are also timekeeping tools in this era, such as sundials, hourglasses, hourglasses, lamp leaks, and more incense. There is an hourglass, and little wooden figures will come out to ring the bell and drum to tell the time.

Of course, every city has a bell and drum tower, which rings eighteen bells at five o'clock in the morning and at dusk every day to notify the whole city of the arrival of day and night, and then drums will be played at every hour of the day to announce the time. Use the watchman to tell the time.

On the way back to the mansion, Chen Qing asked the soldiers to buy an iron teapot for boiling water, and he asked the blacksmith to modify it a little.

Two days later, goldsmith Li Si sent copper coils and fine steel coils, but Chen Qing was disappointed by the two items. The items were exquisitely made, like works of art, but unfortunately they were not flexible enough, and they could not be played after they were rolled up. opened.

His thinking is a bit ahead of time, the mainspring failed, but you can also consider the gravity clock, using gravity, using an escapement device, constantly grasping the pendulum, then putting it down, grabbing it again, and putting it down again, using gravity to drive the gear run.

But now there is no time, he has to finish the first class well. This morning, Chen Qing went to Taixue to give a lecture with a teapot and a stove.

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【Neighbors are all sheep. Lao Gao curled up in the room and shivered in fear. The main reason is that he lacks exercise all the year round and his immunity has declined. Today there are two more. 】

(End of this chapter)