Tian Yujin squatted on the school ground, playing with the curved fire cannon, or mortar, modified from the squatting tiger cannon.
The structure of the mortar is actually very simple. It is a small gun with a small caliber and low muzzle velocity. The caliber of the direct-fire cannon Tian Yujin played with is very small, probably only about two and a half inches in diameter. The barrel also looks very thin.
It is no different from the ordinary Tiger Crouching Cannon. In fact, this gun was modified from the Ming Army's Tiger Crouching Cannon, and it was so simple that Tian Yujin could operate it alone.
The only thing that raises eyebrows is that a bracket with a screw fixing device has been modified at the bottom of the barrel. The bracket allows the small gun to adjust the shooting angle at will.
Tian Yujin poured gunpowder into the cannon, and the fans around Zhu Youjian subconsciously stood in front of Zhu Youjian. Tian Yujin's way in was unclear, and the fans were worried that something uncontrollable would happen.
Tian Yujin loaded a small cannonball with a wooden base into the barrel of the cannon, and adjusted the muzzle to aim at a small tree four hundred meters away.
"Bang!"
The cannonball flew out with black smoke, hit the small tree six or seven feet away, and exploded with a roar.
Zhu Youjian's eyes widened, and his face gradually became happy.
Tian Yujin fiddled with the cannon again, adjusted the shooting angle, and fired again. This time, the small explosive bullet hit firmly within half a foot of the small tree, breaking the tree with a loud bang.
Zhu Youjian's face was already full of joy, he stroked his beard and nodded.
Tian Yujin walked up to Zhu Youjian, raised his hands and said, "Your Majesty, with this cannon, we can attack the enemies in the trenches. When the Beijing New Army was defeated by the Jiangbei Army in Huguang, the reason was that the Jiangbei Army had this cannon."
."
"This cannon is extremely simple to make, and even the most ordinary cannon-casting craftsmen can do it. If the Holy One is in urgent need of it, he can collect tiger crouching cannons from various places and transform them, so that they can be obtained faster."
Zhu Youjian nodded and asked: "What is a 'Formosa-style' rifle."
Tian Yujin said: "The Formosa rifle was originally the standard rifle of the Huben Army. By chance, it was learned by the Hongyi Army and renamed the Formosa rifle. After that, the gun was passed on to the Jiangbei Army by the Hongyi Army and became the Jiangbei Army.
The standard equipment of the army."
"This gun is very powerful. The students demonstrated it for the emperor."
Wang Dehua looked at Tian Yujin, but did not dare to let him play with a gun in front of the emperor, and said: "Tian Juren has a rest, let's try the gun."
Tian Yujin nodded and said, "Okay, I'll teach you father-in-law!"
Under Tian Yujin's guidance, Wang Dehua loaded the rifle with ammunition, aimed it at the target sixty feet away, and shot it.
Neither the first nor the second shot hit. But Wang Dehua was not discouraged and fired ten shots in a row. He hit three times in the last five shots.
Tian Yujin raised his hand and said to Zhu Youjian: "Your Majesty, if you are a skilled soldier, if you use this rifle to hit a target sixty feet away, you can hit eight or nine out of ten shots."
Wang Dehua stopped shooting and handed the rifle to Zhu Youjian.
Zhu Youjian looked at the rifle up and down, with a smile on his face.
"Good! With this good weapon, the new army in the Beijing camp will be even more powerful!"
"The name Formosa Style is too convoluted. From now on, let's just call it the Powerful Gun!"
Tian Yujin knelt on the ground, kowtowed, and said, "The Emperor is Holy Ming!"
Prosecutor Zhu Youxu said: "It's just that now we have to make cannons and muskets. I don't know how many gunsmiths have to be recruited. It consumes too much money. After all, the new army in the Beijing camp cannot train as much as before...
"
Zhang Guanghang cupped his hands and said, "Your Majesty, there is no need to worry about this matter."
Zhu Youjian was stunned and asked: "Does Mr. Ge have any way to raise money?"
Zhang Guanghang said: "Your Majesty, scholars from all over the country now know that your Majesty has no intention of abolishing the imperial examination, and they all know that the civil service examination was caused by King Qi using military force to force your Majesty. I heard that scholars in many places have launched donations and are preparing to raise money to donate
Give it to the new army in the capital. I'm afraid it won't take more than a month for carts and carts of silver to be transported to the capital."
Zhu Youjian looked at Zhang Guanghang and was stunned for a while.
However, he burst out laughing and said: "Every time comes, heaven and earth are all working together. In this way, I have nothing to worry about."
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Li Zhi looked at the twelve-meter-high dam and was lost in thought for a while.
Although the reinforced concrete dam was designed by Li Zhi himself, after Li Zhi finished the design drawings, he left the work to Jing Yishan. Now that Li Zhi saw the dam again, he felt an unreal feeling, as if he himself
I have returned to the future life before time travel.
The hydropower station, a symbol of modern industry, appeared in the late Ming Dynasty, which is really eye-catching.
The dam did not open the gate at this time, and the river water flowed out from the drainage pipe next to it. The water flow was obviously blocked in the drainage pipe, and the flow rate was not very fast.
Li Zhi walked to the top of the dam from the nearby stairs.
Looking around, the valley behind the dam has turned into a lake. The lake is four or five miles long and wide. It is sparkling and looks very beautiful.
There are a few idlers fishing by the lake.
Jing Yishan was still as impolite as before. He organized the construction of the dam and was quite proud of it. He waved his arms and said loudly in front of Li Zhi: "To build this dam, we mobilized two thousand laborers and it took three years to build it.
Three hundred and twenty-seven tons of steel bars, cement..."
Li Zhi smiled, interrupted Jing Yishan, and asked: "Has the generator set been set up?"
Seeing Li Zhi interrupting him, Jing Yishan was a little unhappy, frowned and did not answer Li Zhi.
Gao Ligong, who was next to him, quickly came up to smooth things over and said, "Your Majesty Mingjian, the hydroelectric generating set in this dam has been installed."
Li Zhi smiled and said: "Go and have a look."
Everyone walked down the dam again and walked to the generator room on the east side of the bottom of the dam.
A tall generator two people tall was placed in the middle of the machine room, making a rumbling sound. The whole machine was covered with an iron shell on the outside, so it was difficult to see what was inside.
This generator was not designed by Li Zhi himself.
Gao Ligong smiled and said: "Your Majesty, this generator was designed by Chen Yiming, an electrical professor at the School of Engineering of Fanjiazhuang University."
Chen Yiming met Li Zhi. He was Li Zhi's first helper when he was studying generators. Later, as the captain of the electric power team, he specialized in producing generators in a state-owned factory. Chen Yiming was quite diligent and studied all the physics written by Li Zhi by himself.
Chemistry books, and later after the establishment of Fanjiazhuang University, he went to work as a part-time professor at the university.
Now that he has mastered the knowledge taught by Li Zhi, he can design a generator independently.
With hydroelectric generators, the concrete dam designed by Li Zhi can generate electricity.
The principle of a hydropower station is very simple.
After the water flow is blocked by the dam, it accumulates behind the dam and increases the water pressure, which has the potential energy to do work. The hydropower station opens an opening at the bottom of the dam to divert water. The water flow flows from the water diversion pipe and passes through the turbine to drive the turbine blades to rotate. Finally, it drives the water connected to the turbine.
