Live streaming life: The ancients begged not to stop

Wei Qing stepped forward and said, "Your Majesty, this cannon looks quite heavy. I think it can be used to defend the city, but I'm afraid it won't be enough to deal with the cavalry."

"To deal with cavalry, we need a machine gun that can fire continuously."

Liu Che thought about it carefully and realized that he was indeed too optimistic. However, it was still good for defending the city. One shot could blast a hole in the army formation.

A cannon is actually very simple. It has an open end and a completely closed end. Gunpowder is stuffed into the muzzle, and then a cannonball is inserted. The gunpowder hole is ignited, and the high pressure from the burning gunpowder is used to shoot the cannonball out.

It's easy to say, but it's not so easy to do. First of all, there's the issue of materials. my country doesn't have many copper mines, so using all copper is simply unrealistic. Using iron is a good option, but it also presents many technical problems.

[The simplest method is to use cast iron. You can also use clay molds, iron molds, wax molds, etc. These methods have their own advantages and disadvantages, depending on your area.]

Tang Dynasty

Li Shimin had called several knowledgeable people from the Tang Dynasty to his side. He carefully asked them what methods the Tang Dynasty should use to solve the above-mentioned problems.

"Your Majesty, we should try making one out of copper first. Although there isn't much copper in the Tang Dynasty, it's still easy to make one. We need to find the problem in the process."

Ming Dynasty

Zhu Di summoned the entire Ministry of Works and the craftsmen who made cannons to the palace. For the Ming Dynasty, making a cannon was no longer a difficult task.

But it is still difficult to make a good cannon.

"Listen carefully, everyone! Whoever can make it will be rewarded handsomely!" Zhu Di paused. "Promotions and titles will be given. I keep my word!"

Qing Dynasty

Emperor Kangxi's hands kept shaking as he sat on the throne. What he feared had finally happened. Guangdong Province produced good iron and had a strong desire to oppose the Qing Dynasty.

Fortunately, the cannon was heavy. If it was a musket, he would probably have hidden in the palace and not come out.

You who come from a later era know what standardization means. It's best if all parts can be universal, so iron casting was chosen.

[At this time, you must be careful of muzzle whitening. You will also find that cannons cast in a spindle shape are the most powerful.]

[Another point to note is the ratio of the barrel to the caliber. The best ratio is 17 to 19 times.]

[Another important piece of information: If you're in the middle or late Wanli period, be aware that a Dutch ship once sank in Guangdong. You can find a way to salvage it.]

Daqin

Several Mohist disciples have written down all the information, but they are very interested in the technologies mentioned above. How were these things developed?

Why this shape and proportion?

"Brother, I said at the beginning that the effectiveness of artillery depends on distance and power, so this must be related to these two factors."

"Why?" Mo's Juzi paused. "If we can study this aspect clearly, we can create more powerful artillery."

Tang Dynasty

Li Shimin could no longer bear it. He was eager to see the power of the cannon, so he simply arranged Li Chunfeng to be in charge of making the cannon.

In order to prevent leaks, all craftsmen were required to stay in one place and not come out easily.

Ming Dynasty

Zhu Di waved his hands excitedly. This video indeed mentioned the specific technology, the spindle shape and the barrel proportion. He would let the craftsmen make it this way in the future.

However, the Wanli period was too far away at that time, and the Netherlands at that time was probably not so developed yet.

"Send an order, have Zheng He go to the Netherlands to take a look. If the artillery is advanced, buy two or three and bring them back for research."

He didn't even dare to think about the craftsmen. The identity of this kind of cannon-casting technicians should be kept secret in every country, and it would probably be difficult to invite them back.