When Li Daoxuan saw the lost Bai Yuan, he secretly smiled in his heart: He began to pursue accuracy.
This is inevitable!
After the birth of the fire gun, many firearms inventors have been working hard to pursue accuracy. The process of changing from a three-eyed gun to a bird gun was actually an attempt to pursue accuracy. At that time, craftsmen used "longer barrels" "To stabilize the direction of the bullet when it comes out of the chamber and make it accurate.
However, no matter how accurate a smoothbore gun is, it is still a joke, because the inside of the barrel is smooth, and the bullets will fly around when they come out of the chamber. No one can control this.
In order for the bullet to fly forward stably, it must have rifling.
Rifling is not a sophisticated thing. As early as 1498, the Germans had invented rifling. Now it is already the second year of Chongzhen, that is, 1629. More than a hundred years have passed. In the Ming Dynasty, rifling was The craftsmanship can already produce rifling, but it is more difficult to rub the rifling by hand, which is time-consuming and labor-intensive, and it is difficult to mass-produce.
Since the technology has allowed it, Li Daoxuan doesn't need to worry about anything, just give it to him.
He took out the technical information on rifling that he had already prepared and threw it at Bai Yuan's pocket.
What he gave was a relatively simple drawing of "straight rifling", which is much easier to make than "spiral rifling". It goes from shallow to deep.
Bai Yuan was holding a firecracker, aiming at a flying bird in the sky. He aimed left and right, but no matter how he aimed, he couldn't get it right. He sighed and fired casually with a "boom".
At the same time as the shot was fired, the paper thrown down by Li Daoxuan also happened to float down.
The bullet hit the large piece of paper, punching a small hole in the center of the paper.
Bai Yuan was startled: "Ouch? Oh no! It hit the heavenly book given by Tianzun."
The paper fluttered and fell in front of him. He took a closer look and saw that what was drawn and written on the paper was a technique for improving the accuracy of the gun. However, the most critical "rifling" icon position was broken. The hole is large, just enough so that the cross section of the rifling cannot be seen.
“Ahhhh!
Bai Yuan screamed loudly: "It's over, it's over. God gave me a way to improve the accuracy of the fire gun, but I broke it. Oh my God, ahhhh! I actually broke the heavenly book, ahhhhhh!"
With a thud, he fell to the ground.
A group of servants nearby quickly gathered around and helped him up.
Bai Yuan looked annoyed: "It's over, I don't know how to apologize. This art of etiquette, cross it out.
Li Daoxuan laughed, printed another sheet, and put it down again.
Bai Yuan perked up and said, "That's great. There is actually a second copy of the Book of Heaven. It turns out it doesn't matter if one copy is broken."
He put away his annoyance, spread out the huge piece of paper, climbed to the nearby tree, and looked down...
After reading it for a long time, I didn’t quite understand it!
It turns out that Bai Yuan has only studied mathematics, not physics and chemistry. There are many subtle principles that are difficult to understand without studying physics.
However, it doesn't matter if you can't understand it. He immediately ordered the "Book of Heaven" to be rolled up, and with a group of servants, he ran to the next train. He stuffed the huge roll of paper into the train carriage, and then "eat and eat" in front of it. Gao's family.
The school in Gaojiacun has become magical now.
Next to the five-story teaching building, there is a microscope. Many students climbed to the fifth floor, climbed to the microscope through the pre-set shelves and looked down, while the people on the second floor put them under observation. The things are placed on the pallet high on the second floor...
In addition to microscopes, there are many huge experimental tools in the school, which are basically placed next to the teaching building, making it easier for students to climb several floors to use them.
These huge experimental equipment have greatly improved the speed of students' learning of physics and accelerated their understanding of "science".
However, Bai Yuan was not interested in these.
He is not interested in anything that does not belong to the six arts of a gentleman.
He rushed into the teaching building as fast as he could and headed straight for the library.
Song Yingxing and Mr. Bai were still reading and playing in the library.
Bai Yuan waved to the servant behind him: "Hurry and bring the Heavenly Book."
The huge piece of paper was unfolded in front of Song Yingxing and Mr. Bai.
Mr. Bai understood at a glance: "That's it! That's it.
Bai Yuan already knew that he couldn't compare to his son in physics, but this was not "number" and was not within the scope of the Six Arts. He didn't care at all, and asked with a smile: "What does this heavenly book mean?"
Mr. Bai pointed at the rifling and said: "This is used to stabilize the bullet! The lead bullet is relatively soft. When it is fired, it will deform slightly, and its deformed part will be embedded in the concave rifling. This way Once it is done, it will no longer slide and collide in the barrel of the gun, and it will no longer fly around when it comes out of the barrel, just like the wheels of a train will only move along the rails...the bullet will also follow the groove lines. Paddling…I think that’s how it should be.”
Song Yingxing, who was next to him, also nodded: "Yes, that's obviously the case. Little friend Bai is really good at physics.
Bai Yuan was overjoyed: "It means that after you get this thing called rifling in the barrel, the bullet will fly straight forward, and you can hit it wherever you point it?"
Song Yingxing and Mr. Bai nodded together: "Yes!
Bai Yuan: "Hahaha, what exactly should we do?"
songs The key and most difficult part is to apply even and stable force when pulling the rifling, and do not pull the rifling crookedly, otherwise the bullet will not be able to shoot out straight.”
Mr. Bai laughed and said: "So it's best not to pull with your hands. If you pull it with your hands, it will be easy to pull it crooked. Even if it looks straight to the naked eye, it is actually crooked. We have seen this in the microscope. Many times."
Song Yingxing: "So we can first make a wooden machine, like a textile machine, make a straight slide rail on it, install the broach in the slide rail, and use this thing to maintain the stability of the broach. You can draw straight rifling."
The two guys came up with ideas together, and within a few minutes, they came up with a perfect plan.
Bai Yuan was dumbfounded and didn't understand many things.
However, he did understand one thing, that is, rifling can be made very quickly.
Bai Yuan was overjoyed and reached out to pat Mr. Bai on the shoulder: "Hahahaha, you are pretty good now and can already help me. Hahaha, when I grow old, I will hand over Baijiapu to you. There’s no problem with your hands, right? Hahahaha.”
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