After firing the mortar cannon, the soldiers of the artillery battalion launched ten more Furlong machine cannons, which hit farther than the mortar cannon, and the target was placed at a distance of two hundred steps, which made Lu Ruohan a little worried.

"My lord, can you hit it so far?"

"Don't worry, the limit distance of our Maojiatun No. 4 Furlong machine cannon is three hundred steps, as long as you add more gunpowder, now two hundred steps is just a normal range," Lin Dacheng said with some pride.

"Could it be that the Franc 4 here is different? I remember that the standard is about three feet, the medicine is three and a half, and the lead weighs three taels each, how can you hit three hundred steps? Lu Ruohan was a little unconvinced, he didn't know much about mortars, but he was very familiar with Furlong machine guns.

"Why don't you try it?" Yang Bo doesn't talk nonsense

There are only two people working on the small cannon of the Furlong machine, one of them picks up the sub-gun of the Furlong cannon, installs it in the hole groove like a mother gun, puts on the primer, and the aiming hand begins to visually inspect the front sight and the door, and adjust the target in the distance.

Taking advantage of this, Lu Ruohan carefully looked at the filling process, but found a few differences for him. Maojiatun's Fulong machine is sealed with lead, which is estimated to prevent deflating, and a circle of cork chips is laid around when the gun is filled, and the gunpowder used in Maojiatun is packed in cloth bags, and the estimated amount of medicine has long been standardized.

Lu Ruohan nodded secretly, Mao Jiatun's use and understanding of artillery, it is true that the entire Ming Dynasty could not find anything more advanced than them.

Ten Furlong machines were lined up, and the dark muzzles were aimed at the target in the distance, which was also majestic. As the gunner lit the fuse, Lu Ruohan noticed that all the people standing near the cannon looked calm, including Yang Bo, who did not seem to have any abnormality, and no one seemed to be worried about the dangerous consequences of exploding.

Boom Boom!

A few loud bangs, the Furlong machine fired in turn, and after a while, a soldier who specially checked the bullets reported the results, one out of ten, and the others were not far from the target, for this result, Yang Bo and Lu Ruohan both nodded and expressed their satisfaction, it takes at least five years to train a qualified artilleryman, and a lot of live-fire practice, such results are very good.

"That's it?" Lu Ruohan was a little surprised, and he still had a feeling of unfinished.

"There are also four tiger squat cannons, but they should not be disassembled, so I won't demonstrate them today" Yang Bo actually saw that it was getting late, and he still remembered Bi Fangji's affairs in his heart.

"In this way, the main artillery of Maojiatun is these two, right?" Lu Ruohan asked

Yang Bo nodded: "That's right, the other artillery pieces are heavy and not suitable for us to use at this stage."

"I can fix this"

Lu Ruohan said: "For example, the Furlong No. 3, which weighs more than 300 pounds, we can replace the gun carriage with a two-wheeled carriage, so that only one horse can be pulled away when transporting, of course, it depends on who the enemy's enemy is."

"Tartar!"

Yang Bo did not hesitate

The hearts of everyone present sank, and it was the first time that Yang Bo had said his main goal in public so bluntly.

"That's right!"

Lu Ruohan slapped his thigh: "To attack a city, then you must be equipped with at least thirty such medium artillery, no more, thirty horses, dozens of people can run around!" If heavy artillery is to be designed, it can be designed as a four-wheeled wooden frame, which can be carried by four or eight horses"

"This, this lord"

Chen Jianghu stepped forward with some hesitation, and gave a salute before saying: "The villain with the wheel frame has long had this plan, but the impact force of this kind of cannon will overturn the barrel when it is fired." ”

Yang Bo laughed, picked up a wooden stick on the side of the road and said to Chen Jianghu: "Because the mortar cannon can be taken away by throwing it at the side box car, I haven't had time to plan the wheel mount of the medium-sized artillery, yes, Mr. Lu Ruohan's idea is right, using a two-wheeled gun mount to transport it on flat terrain is the most labor-saving."

As for the recoil you're worried about, you should have asked me earlier, the impact question is simple......"

After speaking, Yang Bo took the wooden stick and drew a pattern of "捺" on the ground and said: "Chen Jianghu, you see, the two-wheeled iron frame is linked to this iron tail, so that the support points of the cannon barrel become three, we said in the private school class, the triangle is the most stable, how about you look at this?" ”

Chen Jianghu nodded silently, and Lu Ruohan was full of joy: "My lord, when will we build No. 3 and Tiger Squat Cannon?" ”

Yang Bo shook his head: "There is no such plan for the time being."

Seeing that Lu Ruohan was a little depressed, Yang Bo patted him on the shoulder and said, "Give me half a year, if everything goes well." ”

"Really?" Lu Ruohan's eyes lit up

"I don't have any merit as a person...... Yang Bo quickly patted his chest and abdomen

"So, Mr. Lu Ruohan? An annual salary of 1,500 taels of silver, a position as the commander of a heavy artillery battalion, and the title of a mechanics teacher at Fort Mighty's private school, would you like to stay here? Yang Bo looked at Lu Ruohan's eyes and said sincerely.

"Can I still lead troops?" Lu Ruohan jumped up

"Yes, starting with a battalion!"

Yang Bo raised a finger: "But you have to give me half a year"

"And what can I do now?"

Lu Ruohan was already full of smiles, his dream had never been realized all over the Ming Dynasty, even if he was as enlightened as Xu Guangqi, he only regarded him as a Xiyi cannon caster with a common language.

Unexpectedly, in a small Maojiatun, he not only found a confidant, but also this confidant completely trusted his command ability, believing that the future war would be the world of artillery!

Based on this, Lu Ruohan felt that he was willing to work without an annual salary!

"Chief Officer of Fort Mighty Artillery R&D Center"

Yang Bo was also smiling: "But first merge with the craftsman battalion, and then it will be separated separately, if Mr. Lu Ruohan is willing, it can start tomorrow." ”

"I do!" Lu Ruohan didn't wait for Yang Bo to finish speaking, he rushed up and held Yang Bo's hand tightly.

"There are two problems in front of you that need to be solved, one is the launching device, and the other is the research and development of the flowering bomb" Yang Bo was not polite, and directly threw the problem to him.

"Blossom bombs? Aren't you already," Lu Ruohan asked suspiciously

"That's right, but what I want is a flowering bomb fired inside the Furlong machine, the tiger squat cannon, and the red-clothed cannon" Yang Boming knew that it was a dream to bloom in the era when there was no thunder mercury and a primer, but he still decided to find something for Lu Ruohan to do.

In the evening, Yang Bo held a banquet to catch the wind for Bi Fangji and his party.

"Early tomorrow morning, we will witness the moment when the bell of the Lotus Hall rings!" Bi Fangji was so happy that his beard trembled.

"Master Bi, I really can't get up?" Yang Bo looked helpless.

"Ha" Bi Fangji looked at Yang Bo with a smile: "Zhixian, you know, this is a moment of history."

"Okay, I'll entrust Mo Chou to attend on my behalf," Yang Bo nodded

Bi Fangji knew Yang Bo's consistent position, and now that the Ming Dynasty's family of people close to Western studies had been wiped out, he was no longer reluctant.

"I brought you something you've been waiting for," Bi Francis motioned for a retinue to take it out

"Do you know what this is?" Tang Ruowang, who was sitting next to Yang Bo, asked

"There is no doubt that the bell is ringing," Yang Bo knew in his heart.

Sure enough, the two layers of cotton cloth were brought in, revealing a self-striking bell made of sandalwood, and the dark yellow pendulum shone with a metallic luster inside the glass.

"How many do you bring?" Yang Bo asked

"Three-seater"

Bi Francis held out three fingers

"Good" Yang Bo was overjoyed, so that the watch factory of Fort Weiwu could be established.

"My lord, I also brought you a gift" John Tang also took out a package.

"This is, this is a telescope?" Yang Bo guessed as soon as he saw the shape of the package.

"Your Excellency knows?" Tang Ruowang was a little puzzled, there were clairvoyant mirrors in the Ming Dynasty, but they were all monocular, he was a pair of Galileo's improved binoculars, he thought it was a precious item, but he didn't expect Yang Bo to know it for a long time, Tang Ruowang couldn't help but be impressed by Yang Bo's erudition.

"At the end of the road, I have something I want to talk to you about alone," Yang Bo put down his binoculars and said to Tang Ruowang

"Your Excellency?"

Tang Ruowang asked with some curiosity: "How do adults know my cousin?" Did Francis Bi tell you? ”

Yang Bo laughed: "I not only know the end of your words, but also know the "look at the road but do not see it" taken from "Mencius", not only that, but I also know that your original name is John Adam......"

Seeing that Tang Ruowang opened his mouth, Yang Bo was also helpless, I know that you have studied mathematics, chemistry, mechanics, physics, philosophy, astronomy and geography and other disciplines in the Roman Academy system.

You also wrote a "Complete Book of Mining and Metallurgy", which recorded the technical works of European ore mining and smelting, and you also wrote the Chongzhen Almanac, as well as the two volumes of "Fire Attack Essentials" and one volume of "Fire Attack Secrets" on the principles of cannon smelting, manufacturing, storage, transportation, performance, gunpowder preparation, and shell manufacturing, etc., which were authoritative works on musket technology at that time, and later generations did not know how many TV dramas had said it.

I also know that when you were a missionary in Xi'an, you kept recording the names of the countries and places that the caravans passed through, the names of the customs, the names of the commodities that came and went, the trade situation, etc., and that in the hands of others you were a commercial junior, but in my hands, your role was greater.

"At the end of the road, I want to set up a self-striking bell factory, I need a person in charge," Yang Bo leaned into Tang Ruowang's ear and said softly

John Tang almost squirted out a mouthful of wine: "What? My lord, do you know how many parts are in a chiming clock? ”

Yang Bo laughed: "I only know that the pendulum swings regularly around the center point within a certain range, this is the pendulum principle, in fact, if there is no resistance it will swing forever, so we have to use the clockwork to provide it with the energy to swing, from the simplest aspect, no matter how many parts are for this purpose to serve, that's all." ”

Seeing John Tang's stammering appearance, Yang Bo said: "Actually, I have also had a small study of Galileo's three major contributions, in addition to philosophy, on mechanics and heaven, such as gravity, free fall motion, acceleration, the law of habitual surnames, and for example, the theory of ground motion, whether the straight line between two points is the shortest, etc., I think we will have a lot of common language in the future, I promise." ”

"In addition to the self-striking bell factory, we will soon start the glass factory, which mainly produces everything related to glass, such as mirrors, church stained glass, etc., as the person in charge, you will get a 10% share" Yang Bo threw out the olive branch that had been planned for a long time.

That night, despite his drunkenness, John Tang splashed his head with cold water and recorded the shock left by his first conversation with Yang Bo in the diary: "He is a strange person, and under the vulgar surface hides a treasure of knowledge that seems to be inexhaustible, obviously, my friends Bi Fangji and Lu Ruohan have seen a corner of the treasure exposed, and just such a little brilliance has already convinced them, God, I really don't know how to explain all this, he seems to have crossed the limits of time and space, Being confident in everything, I don't know how many books I have to read to be able to see everything like this, it's really a miracle, yes, I think only miracles can explain all this......"

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