First of all, it is necessary to design a hydraulic machine, which uses water to drive a rotating drill bit to drill holes.

Talent! There is no talent! Let's cultivate our own talents! There are a lot of things, and they are gradual.

Zhao Yan gathered several carpenters and blacksmiths with outstanding skills and began to overcome the problems of hydraulic applications, and there are many kinds of hydraulic machinery.

The hydraulic mill is the simplest, and when Zhao Yan mentioned it, there was immediately a carpenter named Sun Er who knew how to make it. Zhao Yan immediately promoted Sun Er as a foreman, specializing in the manufacture of hydraulic mills.

The hydraulic mill can be used to process grain, and the biggest use for Zhao Yan is the production of cement. Cement is used to build forts and roads, and if all materials are milled with animal power, the cost is too high.

"How much silver does it cost to make a hydraulic mill?" Zhao Yan asked Sun Er.

"If it's a small one, about a dozen taels is enough, and it can grind hundreds of catties of grain a day. If you want to build a very large one, it will cost hundreds, hundreds of taels of silver. "Sun Er has built hydraulic mills and has some understanding of costs.

"At this time, you can preside over and build enough mills for the cement plant." Zhao Yan's eyes didn't blink, although the investment is a bit big, but the silver is just a dead thing!

The role of silver is to mobilize productivity. It's simple! It is no different from the stabbing consumption of later generations, if no one spends money, naturally no one can make money, people can't make money and won't spend money, no one can spend money, no one can form market demand, and no one will produce without market demand.

Only by keeping silver in circulation can people's productivity be fully mobilized, otherwise it will be just a pile of waste products that can be seen but not eaten.

Earning and earning is the king.

As long as the hydraulic mill is used in the processing of grain and cement, it can save a lot of manpower and animal power, and people can do other things.

Although it may not seem cost-effective in the short term, it will definitely be profitable in the long run.

Then Zhao Yan led people to invest in the research of hydraulic drilling machines, and he had the drawings, but how to make the things on the drawings?

At this time, Zhao Yan found a problem, his craftsmen were very low in culture, could not read his drawings, and did not have standard measuring tools.

Each craftsman uses a different measuring stick. In desperation, he had to order the unification of the rulers of the Ordnance Bureau and make a batch of rulers with the same distance.

Putting aside other affairs and devoting himself to the study of hydraulic drilling machines, no one had to go into battle shirtless and began to teach his craftsmen.

The Ordnance Bureau is currently in charge of Blacksmith Zhou, and Blacksmith Zhou is also under pressure. He was able to become the foreman of the Ordnance Bureau, mainly because he was an old man of the Zhao family and could be trusted.

But in terms of ability, it is what he is lacking, so this time in overcoming hydraulic machinery, Zhou Blacksmith studied very seriously, and devoted himself to the study of this aspect all day long.

After teaching for more than half a month, the craftsmen of the Ordnance Bureau finally understood the drawings. Zhao Yan immediately allocated 1,000 taels of silver for them to make a hydraulic drilling machine.

According to the plan, after the hydraulic drilling machine was manufactured, it was ready to produce flintlock pistols. Zhao Yan drew a drawing of a flintlock pistol for the Ordnance Bureau, and the data on this drawing were studied in the research institute in later generations, and the effective range of the flintlock pistol manufactured could reach 130 meters, and a three-point and one-line crosshair was added.

The type is a smoothbore gun, if rifling is added, the effective range can reach about 200 meters, and it has a relatively high accuracy surname, but the rifling is not very reliable, because it is a front charge, the loading speed is too slow, and it is good to be able to fire twice a minute.

However, it is possible to form a sniper team with rifled guns, but it is not possible to spread it to the whole army.

A month after Zhao Quan went to Jinan City, he returned with a huge convoy under the escort of the two Wu Jiading. This time, Zhao Quan brought back the grain stored in Jinan, and brought back 30,000 catties of iron.

Iron has always been a lack of the Zhao family, the Ordnance Bureau is definitely a big iron swallower, iron is needed to make weapons and muskets, and the young people below each have an iron gun in their hands, as well as arrows. Coupled with the manufacture of farm tools, the 20,000 catties of iron brought back last time have been almost used.

"Uncle Quan, how are things going?" Zhao Yan asked eagerly.

"The big businessmen of the Shandong Gang have basically been notified, and it depends on them whether they come or not." Zhao Quan rubbed his somewhat frozen face and said, "But Zheng Shilian made it clear that he would come forward to help." ”

"That's good, hehe! In the future, you don't have to worry about the silver. Zhao Yan laughed.

"Did Childe build the guild hall?" Zhao Quan asked.

"It's been built." Zhao Yan said that this time he asked Zhao Quan to go to Jinan and Jining to send a post to a group of big businessmen of the Shandong Gang, and sent glass mirrors, inviting them to discuss the sale of glass mirrors at the Shandong Hall in Jinan on the fifteenth day of the first lunar month, and only businessmen from the Shandong Gang could participate.

After all, it is too troublesome to sell mirrors by yourself, so it is better to let those merchants come to buy them and bring the materials they need.

Most of the businessmen in this era are in the trafficking stage, and they are absolutely pervasive in trafficking, Zhao Yan needs a lot of materials, if he buys it himself, it will take up too much manpower and it is not cost-effective, and it is a good choice to use the power of these merchants.

The construction of the Zhao Family Hall was intensified, mainly to receive the merchants of the Zhao Family Fort in the future.

Because the Spring Festival is approaching, most of the businessmen of the Shandong Merchant Gang are at home, and being able to inform them is mainly the result of Zheng Shilian's help.

Zheng Shilian, as the boss of the Shandong Merchant Gang, naturally knew where the hometown of the Shandong Gang was, so Zhao Quan sent someone to send an invitation and a mirror.

After Zheng Shilian heard that the Zhao family had successfully imitated the diorama, his attitude became more enthusiastic, after all, the Zhao family could produce diorama, and it would inevitably become a climate in the future.

and then befriended the Zhao family, and in the future, selling dioramas could also make his Zheng family earn more silver.

The Spring Festival is coming in a few days, and on the fifteenth day of the first month, Zhao Yan also got the Jinan City Conference to discuss the fort and the military restructuring to be carried out after the first month.

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The first volume is almost over......

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