……

Since giving the emperor a dose of fierce medicine, the emperor and the court have been quiet lately.

The construction of Dongfang Road has been completely on the right track, and the engineering team organized by the merchants who participated in the investment promotion and fundraising has begun to level the roadbed for construction according to their respective bids, and it is blatant, because Chen Xu's words that I did not pave concrete have been spread, so that all the businessmen feel very reasonable, anyway, I did not officially start paving the road, just repaired the dilapidated old Chi Road, even if Li Si saw it, what about it, is it not allowed to repair the road.

So after Li Si heard the news that kept coming, he could only hide in his house and pull his beard depressedly, and his chin was bald.

Chen Xu doesn't have anything to worry about too much recently, except for going to the Academy of Sciences and the College of Liberal Arts, he is going to the College of Engineering and the College of Agriculture, which have been preparing for two months, to make a cameo appearance as a lecturer.

The College of Engineering and the College of Agriculture had been prepared at the beginning of August, and they each recruited some young apprentices and helpers to study in them, but because Chen Xu was busy with the matter of Dongfang Dao investment and fundraising, he was busy every day and had little energy to deal with it, but as the first dean of the College of Engineering, Chen Xu still arranged for his most powerful subordinate Hu Kuan to go to the College of Engineering as the vice president. Then, some craftsmen and craftsmen who were proficient in smelting, casting, building weapons, agricultural tools, and new water conservancy were sent from the Academy of Sciences and factories to the college as teachers and teaching assistants.

As for the College of Agriculture, Chen Xu can't control the subordinate government that belongs to the Ministry of Agriculture, so the dean and vice president are set up in imitation of the College of Engineering and the Academy of Sciences, but the staff are all from the Ministry of Agriculture, but the dean of the College of Agriculture has invited Chen Xu to give lectures at the College of Agriculture several times.

Chen Xu also felt that he needed to take a few classes, just these days to have leisure, so he specially went to the later generations of some deep cultivation and fertilizer, screening good seeds, grafting hybridization, castration piglets and other concepts to say, but also warmly invited these students to use more than 200 hectares of mountains and forests and farmland outside their city as experimental fields and practice bases, so recently he has more than 100 free helpers on the fief outside the city, and he is busy in the fief every day according to his plan, planting ginger and pepper, transplanting various fruit tree seedlings, and sowing winter wheat, Once spring begins, different crops will appear in different areas on the fiefdom, and chicken farms, duck farms, sheep and pig fish are planned in different places.

Chen Xu's requirement is that everyone can graduate if the planting and breeding projects they are responsible for meet the requirements.

The College of Engineering is also relatively easy to run, many of Chen Xu's courses have been taught in the Academy of Sciences, Hu Kuan is also a very qualified construction engineer, and the craftsmen of the Academy of Sciences and the factory are also experienced teachers, in addition to doing some mathematical theory learning according to the printed nine chapters of arithmetic, more time is to follow Zhang Cang, Gong Sheng, Ma Pole and Zhang Wen and others in the factory and construction site internship, especially the factory's ironworks, ironworks, bearing factories, cement factories and waterwheel mills, are all internship projects that all students must be familiar withAccording to Chen Xu's plan, after one year of study, these people will be assigned to the thirty-six counties of Daqin to serve as county officials to manage and guide the industrial production and development of each county.

These two colleges are very important to the future development of Daqin, and the first batch of students are seeds, and whether they teach well or not is directly related to the rapid development of industry and agriculture, so Chen Xu's requirements are very high, and he is naturally very serious about teaching.

But in any case, the overall development of agriculture and industry is not something that he can do all of it as a delivery boy, and his main energy is still on the Academy of Sciences, telling some of the theories of mathematics, chemistry, physics, and other things that he remembers, whether they are right or not, or whether they understand it or not, and letting people experiment and demonstrate it after they say it.

In the conference room of the Academy of Sciences, Chen Xu is giving a lecture, and the content of this class is the three main ways of mechanical transmission.

"Today's talk about chain transmission, then gears, chains, connecting rods and belts, the most common ways of mechanical transmission have been finished, the first two are based on gears, the latter two can be regarded as based on runners, gears everyone has now understood and is also very familiar, if you don't know, you can go to the waterwheel mill to observe carefully, if you still can't understand, you can dig a pit and bury yourself......" Chen Xu said while writing on the blackboard.

There was a burst of laughter in the room.

These lectures are all subordinate departments of the Academy of Sciences, including Zhang Cang and Gong Zheng Zheng are now almost every class must arrive, because with the research of the Academy of Sciences more and more sophisticated, the factory has not only developed and produced ball bearings, mixers, grinding and polishing machines, coinage machines and other simple machinery, but also according to Chen Xu's requirements for continuous improvement, including the previous design of the thresher and blank machine are now all replaced with bearing devices.

Threshers used to be made of rough wood, but now with steel and ball bearings, the development of technology has made the thresher more durable, more lightweight, and can also adjust different structures and threshing methods according to the characteristics of different crops.

The blank drawing machine used to be also made of rough wood, with rope as the transmission method, and later changed to a pedal connecting rod, but it is still very rough, especially the design and production of the shaft is not standard, there will be a slight shaking and tremor when turning, resulting in frequent mistakes when drawing the blank, and now after the process is improved, the rotating shaft and the pedal connecting rod can be made of steel, which can greatly increase the success rate of the blank, and can also make the drawn pottery more regular.

"Connecting rod and belt drive is not unfamiliar to everyone, there are threshers and blank machines, as for the chain drive is the most complex, so we need to be able to study it well after going down, once we can study the chain that can be perfectly matched with the gear, we can make a bicycle, you can ride on the road without cattle and horses, and walk through the streets and alleys like walking on the ground, countless times faster than walking......"

"Master Hou, isn't the bicycle a car that can walk on its own?" A craftsman stood up and asked.

"It's not a car that walks on its own, it's a car that pedals on its own!" Chen Xu explained.

"So what's the difference?" The craftsman's head hadn't turned yet.

"It's just you pedaling the car yourself!" Several black lines appeared on Chen Xu's forehead.

"Master Hou, what's the difference between that and a cart? Why is it called a bicycle? "This craftsman continues to be a barrier.

Chen Xu erased everything written on the blackboard with a black face, and then quickly drew a bicycle on the blackboard.

Although Chen Xu explained it very clearly, and almost everyone understood the truth, looking at this strange car with only two wheels, everyone fell into deep thought.

"Master Hou, there is no problem with the chain drive you draw, I also understand, but your car must have been drawn wrong!" The craftsman just now stood up again and said.

"What's wrong?"

Chen Xu took a closer look at the bicycle he drew again, the two wheels, handlebars, seats, front and rear gears and chains, pedals and even brakes are complete, except for the painting is not very standard, the bicycle should have all the things that are complete, and even a hand-cranked bell is hung on the handlebar, which is absolutely not wrong.

"Master Hou, you did draw it wrong, this bicycle has two wheels in a straight line, how to walk if you can't put it steadily?" Zhang Cangdu couldn't help but stand up and remind.

Chen Xu breathed a sigh of relief and shook his head and said with a smile: "Who said I drew it wrong, the bicycle is like this, and I guarantee that it can run fast and not fall!" ”

"Impossible?"

"Absolutely impossible!"

"yes, how can two wheels not fall in one line?"

There was a buzz in the classroom, and countless people were looking at the blackboard and shaking their heads.

Zhang Cangdu hesitated for a long time with the teacup and then said with a wry smile: "Hou Ye, you have always said that we are now studying science, so everything must be scientific theory, the bicycle chain transmission you painted is no problem, but it is indeed not scientific, Cang can not agree with Hou Ye's design, after the production will be undoubted!" ”

"Yes, yes, there is no doubt that if anyone can sit on it and walk on it, so-and-so...... Eat the big iron mill of the mill! The first craftsman to ask a question shouted.

"Hehe, okay, Ben Hou set a bonus of 10,000 yuan, if anyone can make this bicycle successfully, they can get this reward of 10,000 yuan, and Ben Hou has to make a bet with you, if Ben Hou can ride without falling down and drive flexibly, you don't eat that iron mill, no matter the spicy smell or garlic fragrance, you will definitely not be able to gnaw it, you only need to run naked from the Academy of Sciences to the bridge outside the east gate of the city, how?"

"But what if Master Hou loses?" The craftsman's eyes lit up and he said excitedly.

"Ben Hou lost, so naturally he stripped naked from the Academy of Sciences to the East Gate Bridge......"

"Wow~" After a violent commotion in the conference room, countless people jumped up excitedly and slapped the table and laughed.

"Bet ~ bet ~ bet ~~" Many people began to yell excitedly.

"Haha, I accepted this bet, and Master Hou will have to talk when the time comes!" The craftsman was also stimulated by the blushing of the thick neck.

"Ben Hou naturally counts!" Chen Xu nodded indifferently, and then rolled his eyes and said: "The world is so big that there are many wonderful things that are unimaginable, so even if I bet with you that a two-wheeled bicycle can be exercised, but you will definitely not believe it if you can't make a suitable chain transmission system, if we make another bet, the verification method is relatively simple......

"Hehe, what does Master Hou want to bet on? How to bet? Many people looked at Chen Xu with bright eyes, looking very interested.