"As for improvements..."
After Xu Guangqi finished speaking, he paused and looked around, as if he was looking for something.
After a few breaths, he pulled a roll of hemp rope towards the hay shed on one side.
"I think you can wrap the bamboo tube with hemp thread in circles to increase the restraint.
The hemp rope is not that heavy and has excellent toughness. It can also prevent the bamboo tube from breaking when it is dropped from a long distance and falls to the ground. "
Xu Guangqi said, but he did not stop with his hands. He unfolded the hemp rope in circles and layer by layer according to a specific method.
After just a few breaths, something like a thermos cup cover from later generations appeared.
The flexibility of his movements does not look like that of an old man in his sixties.
"Well, it's almost done, let's try again!"
As he spoke, he went to the side of the gunpowder barrel and started filling the fuse, gunpowder, etc. according to what Chongzhen had just done.
Sun Yuanhua on the side wanted to remind the teacher that the emperor was still here several times, but was stopped by Chongzhen.
Although it was the first time to do it, the whole process was smoother and more skillful than Chongzhen's operation, and it took only half a stick of incense to complete.
"Commander Cao, please throw it again!"
After Cao Bianjiao took it, he weighed it: "It's about two or three liang heavier than the one your Majesty just had!"
"Your Majesty, gentlemen, please go behind the wall and watch!"
After being reminded by Cao Bianjiao, Xu Guangqi reacted instantly. He seemed to be rude just now. When he was about to apologize to Chongzhen, he was stopped by Chongzhen.
"Xu Aiqing, there is no need to be polite. What technical research requires is selfless devotion and concentration. It's not too late for me to be happy. Okay, let's go see the results of your improvements!"
After Chongzhen finished speaking, he led everyone back to the back of the wall. Cao Bianjiao looked at the people who entered the wall and said in a deep voice: "Your Majesty, I am ready to start!"
After saying that, he looked at Zhou Yuji again.
Zhou Yuji had the experience of lighting a fire for the first time, so he was naturally very skilled: "Xiao Cao, when I say throw it, just throw it!"
"Prepare!"
"Throw!"
Cao Bianjiao's reaction was very fast. The moment Zhou Yuji threw the word "Exit", the improved simple grenade came out of his hand and drew a more beautiful arc in the air.
After the simple grenade landed, it bounced twice.
This time it was not as long as the first incident. After two breaths, a banging explosion sounded.
The explosion, fire, and smoke were much stronger than the first time.
"It's done!"
Listening to the explosion, Chongzhen felt calm.
When the smoke dissipated, everyone ran towards the explosion site impatiently.
"I go!"
"Depend on!"
"Gosh!"
"This this……"
…
Several military generals swore profanities in unison, their eyes filled with disbelief.
This explosion created a large pot-bottom-shaped pit that was quite a foot deep and three or four feet in diameter.
Xu Guangqi touched the edge of the pit: "Your Majesty, your idea has come true!"
"It's not mine, it's ours!"
Chongzhen smiled: "There should still be room for improvement. Bi Aiqing and Sun Aiqing, please tell me!"
Sun Yuanhua looked around and said softly: "Your Majesty, I think you can add some lead, small iron caltrops, and small hard things into the bamboo tube to increase the power when it explodes."
"Your Majesty, I think that the fuse needs to be improved. According to the burning speed just now, the enemy has already run away. No matter how powerful it is, it is useless.
We can estimate the distance from ignition to landing, combined with the burning speed of the fuse, to determine the length of the fuse, and it will explode when it lands.
Or it can explode within a breath of landing, without giving the enemy time to react;
Secondly, this shape can be changed. If it is convenient to hold, it can be thrown farther. "
"In addition, the bamboo tube is soaked in tung oil to prevent moisture and water, and the fuse is soaked in gunpowder. It can burn for a while in the rain and can be used on rainy days. It is simply perfect."
After Sun Yuanhua finished speaking, Bi Maokang also expressed his views.
"Your Majesty, I also have some ideas!"
After the three of them finished speaking, Cao Bianjiao suddenly spoke up: "I think maybe it doesn't need to be so big. The two just weighed about two to two and a half kilograms.
This thing must be a large-scale attack. I feel that if it is made into a weight of about one kilogram, although it will be less powerful, it will also be smaller in size, easier to carry, and the attack distance will be longer.
If it is only about one kilogram, I estimate that it can be thrown twenty to thirty feet away. "
"His Majesty asked Dean Xu to prepare a jar and his ministers to build a trebuchet. Judging from what we just saw, it must be a firearm used for heavier gunpowder.
There is no need for the thing that Chen just threw to weigh two or three kilograms. "
After Cao Bianjiao said this, everyone remembered that there were jars and trebuchets.
For a moment, everyone's eyes were full of fire. Two kilograms of gunpowder could produce such power. How terrifying would twenty kilograms be?
Seeing everyone's eager eyes, Chongzhen shook his head: "I didn't think enough about it. The jar shattered when it hit the ground. Even if it weighs fifty pounds, it won't have any explosive effect.
If the problem of the gunpowder-loading equipment cannot be solved, the trebuchet will be useless. "
These words were like a basin of cold water pouring down on everyone's heads, but it only took a moment for everyone to adjust and feel better.
"With Dean Xu and the others here, we will definitely be able to solve this matter. Sooner or later,
If you really can’t find the right one, then waste your efforts and let the master blacksmiths knock out a thin iron box by hand. There are always ways. "
"Yes, as long as the idea is correct, the rest will be figured out slowly!"
Chongzhen was very satisfied with everyone's optimistic attitude.
"Since long-distance attacks like jars and trebuchets cannot be used, let's make a few according to what everyone just said to see the effect, and test the explosion range by the way."
"I will prepare now. Your Majesty can spend some time in the testing valley to see other firearms."
Xu Guangqi and the other three were very excited and left quickly after the emperor finished speaking.
Chongzhen also had this intention, so he took everyone to various firearm testing sites, looked around, and fired a shot from time to time with the firearm.
When Chongzhen was playing, he was thinking about how to improve based on the experience of later generations.
Cao Bianjiao and others were not very attentive when playing, and looked at Taniguchi from time to time.
Half an hour later, Xu Guangqi and the others, followed by two sergeants carrying boxes, arrived behind the wall.
Seeing everyone eager to try, Chongzhen put down the gun in his hand and led everyone behind the wall.
There are dozens of simple grenades of different lengths and external materials on the ground at this moment.
"Xu Aiqing, please introduce me!"
