The whole family travels through time and space, and the three of them struggle together

Chapter 137 Demonstration

After Zhou Dajiang finished speaking, he took out the "Puff Boat" first.

"When my wife was boiling water in a kettle at home, I noticed something interesting: when the water boiled, the hot steam would lift the lid up. I wondered what it would be like if I could use that heat on something else. So I made this little boat."

After saying that, he looked at Master Yang again and asked, "Can I borrow the county government's candlesticks, basins, and water for a while?"

Master Yang was attracted by his words and immediately asked someone to bring these three things.

Zhou Dajiang poured water into the wooden basin, then blew into the copper tube of the "Puff Boat" to allow the water to enter the copper tube. Then he lit the candlestick, placed the candlestick under the round copper sheet, and let go.

Then, Magistrate Lin and Master Yang witnessed a miraculous scene: the copper sheet on the boat moved up and down, making a "puff puff" sound, and it really moved forward on its own. Because the basin was a little small, the boat sailed to the edge of the basin and then circled around it.

Seeing that the two of them were staring at the boat intently, Zhou Dajiang explained, "This is the power of heat I'm talking about. It's the heat generated when water boils. I'll call it water vapor for now. The water in the copper tube of the boat is heated by the candle, producing water vapor. This water vapor circulates in this sealed copper plate and is discharged from another copper tube. The force it discharges pushes the boat forward. At the same time, as the water in the copper tube turns into water vapor and decreases, new water flows in, so the boat can continue to move forward. As long as the candle is not burned out, it can keep moving forward.

So I thought, if we can build a large enough steam boiler and control the steam inside, can we power larger ships, even warships?

County Magistrate Lin was stunned by Zhou Dajiang's idea. He didn't expect that an inconspicuous heat could make him think of a warship!

If the steam he mentioned could really be controlled and installed on warships, then the Donghua Kingdom could directly become the king of the sea! With this kind of power, human-powered ships from other countries could never catch up.

When County Magistrate Lin thought of this, he was not afraid of burning his hands with the candle. He directly picked up the boat from the water, blew out the candle, and carefully wiped the water off the hull. He looked at it again and again, and almost found a hole in the boat.

Yang Shiye was also nearby, staring at the boat in County Magistrate Lin's hand and excitedly saying, "Sir, we can report this to the Emperor."

County Magistrate Lin was also very excited and said, "Do you even need me to tell you this? I want to write a memorial right away!"

When Zhou Dajiang heard that County Magistrate Lin was going to write a memorial, he quickly took out the second item and said, "This is also a small model, a life raft made of rubber." Then he threw the model into the water.

I saw that the model called life-saving valve was floating on the water by itself.

"If you equip it with ropes and oars and change its shape, it can become a small lifeboat.

Moreover, rubber is very water-resistant and can be used to make life jackets. With it, our soldiers going out to the battlefield will have an extra layer of protection even when they go into the water."

This time, Master Yang didn't ask County Magistrate Lin to do it. He personally picked up the life-saving valve Zhou Dajiang mentioned, wiped the water off it with a handkerchief, and handed it to County Magistrate Lin, "Sir, this is not bad either!"

Then Zhou Dajiang took out the last model.

Upon seeing this, Master Yang shouted, "Flint Cannon!"

Zhou Dajiang thought about it and shook his head, saying, "Not entirely true. This is a little different from our current flintlock cannon.

Two years ago, I visited a military camp on personal business. Captain Dong, who received me at the time, lamented that it would be great if someone could modify their weapons.

Zhou took the advice to heart, and after two years of research, he developed several weapons. This is one of them, which I call the "Six-in-One Cannon."

Our current flintlock cannon has one barrel and can only fire one shell at a time. Mine has six barrels arranged in a row and can fire six shells at a time. "After saying this, he turned the cannon over in his hand to show the two men.

County Magistrate Lin raised the cannon barrel and saw that it had six muzzles. "Have you tried this?"

Zhou Dajiang shook his head. "No, that's all I've studied. There's no black powder at the back, so I can't test it."

Due to its special geographical location, the Qingshan County Government was also equipped with muskets and gunpowder to prevent foreign invasion. Although it was not as numerous as the military camp, it was more than enough for a small-scale experiment.

County Magistrate Lin asked someone to bring some black gunpowder, tools for loading gunpowder and fuse. Zhou Dajiang carefully poured the gunpowder into the barrel and used tools to push the gunpowder into the gunpowder trough at the bottom. He then took out six small iron balls from the test basket, which he had cast when he cast the barrel, and placed them in the six gun muzzles.

Because it was a model, he didn't know how powerful it was, so he pointed the muzzle at the wooden basin in front of him and then lit the fuse.

There were several consecutive "bang bang bang bang" gunshots, and the wooden basin in front was directly pierced through. Six bullet holes appeared on the opposite wall, and all the water in the wooden basin flowed onto the ground.

County Magistrate Lin widened his eyes, pursed his lips, stepped on the water and went forward to check it out himself. Then, as expected, he saw the small iron ball in the round hole in the wall.

Master Yang was completely terrified. When he saw Zhou Dajiang aiming the model at the basin, he'd been wondering just how powerful a model could be. He'd even considered standing across from the basin to see how the iron ball would hit it. Fortunately, he'd been lazy and didn't move. If he'd been more diligent, it wouldn't be the wall that had been punched, but his leg!

So suspenseful!

"Good job!" After checking the bullet holes, County Magistrate Lin came back and patted Zhou Dajiang's shoulder happily.

"Mr. Zhou is truly a genius! If such a weapon could be mass-produced, it would surely enhance the strength of our army!"

Master Yang also said: "If Mr. Zhou presents this weapon to the court, he will definitely be rewarded handsomely."

Zhou Dajiang smiled modestly and said, "It was thanks to the support of the adults and the master that I was able to succeed in this experiment."

After saying that, he took out a few more drawings from his pocket and pulled out two of them.

Pointing to one of the drawings, he said, "I call this weapon the 'Collective Fire Cannon.' It's an upgraded version of the 'Six-in-One Cannon.' The barrel consists of twenty-six muzzles. Its magnitude and power are theoretically much greater than the 'Six-in-One Cannon,' perhaps even several times greater! Although I've drawn it, my resources are limited. It would be best if the court sent professionals to study it."

He then pointed to another drawing and said, "This cannon also needs practice. I call it a 'shoulder-fired cannon.' The biggest feature of this cannon is its short length, light weight, and portability. The shells have also been changed from spherical to bamboo shoot-shaped, and there is no recoil when fired.

I added 24 right-hand rifling grooves to the barrel of this gun, so that the shells will continue to rotate after leaving the barrel, thus maintaining stable flight ability and hitting the target directly.

In land battles, other artillery pieces are heavy and require multiple soldiers to carry. This gun, however, is different: a soldier can carry it and walk, or fire it while squatting. It can be operated by two people or fired independently.