Daming: The system rejected my request for salted fish

Why Zhu Yuanzhang and Zhu Biao were ready to speak up to stop it.

They also knew about shrapnel shells, but this type of shell was not very practical and was too dangerous.

In fact, the prototype of shrapnel bombs existed as early as the Song Dynasty, and naturally they also existed in the Ming Dynasty as the Ming Dynasty attached great importance to firearms.

However, the detonation time of this type of artillery shell is uncontrollable, so it has not become mainstream.

Before firing a cannon, the fuse of the shell must be ignited and then the shell can be fired.

Because it has to go through the process of firing from the barrel, it is impossible to accurately calculate the explosion time.

It is very likely that the shell exploded before it hit the ground, and even if it hit the ground, it might extinguish the fuse.

But this is still okay. The real trouble is the problem of barrel explosion.

Manually igniting the fuse carries a high degree of uncontrollable risk.

For example, after the fuse of a shell is ignited, if there is a problem with the firing of the artillery, resulting in a delay in firing, the shell will explode in the barrel.

In addition to the fuse, the chamber pressure in the barrel is also a very critical issue.

The reason why heavy artillery can shoot far is because of the high-temperature gas produced when the gunpowder is ignited.

In a closed space like a gun barrel, high-pressure gas is formed to shoot out the shells, which is the so-called chamber pressure.

In order for the shrapnel shell to be powerful enough, a large amount of gunpowder must be loaded, so the iron shell of the shell cannot be too thick.

If it is too thick and there is less gunpowder, the power of the explosion will be less than that caused by the impact of a solid bullet.

It was too thin and contained too much gunpowder, but the iron shell could not withstand the chamber pressure and exploded in the barrel before it was fired.

The ancients did not understand chamber pressure, so they attributed all chamber explosions to the uncontrollable nature of shrapnel shells.

But in fact, most of the explosions are caused by the shells being unable to withstand the chamber pressure.

Zhu Yuanzhang and his son were worried that the shells would explode, so they wanted to stop it to prevent Wei Wu from being in any danger.

Fortunately, nothing went wrong, the artillery was fired smoothly, and the effect was particularly amazing.

When all the audience were attracted by the fire, a sentence suddenly popped up from the crowd.

"That place... seems to be Pancheng Mountain!"

Just this one sentence immediately aroused discussion among people around.

"Yes! That's Pancheng Mountain! It seems to be more than ten miles away from here! This artillery can actually fire that far!"

"You're wrong. Ten miles is the distance we have to walk. This shell flew over there, so it's not that far. Five miles at most."

"Five miles is far enough! And this artillery can explode. If it were used on a battlefield, wouldn't it kill a lot of people?"

"A large area? Why don't you take a closer look? There's a huge hole in the rock wall of Pancheng Mountain. I'm afraid a large area won't be enough!"

Indeed, just as these people said, after the shell exploded, a large piece of Pancheng Mountain was blown out.

In fact, not to mention the audience, even Wei Wu was shocked.

Because of the chamber pressure problem, he had to make the iron shell of the shrapnel shell thicker to prevent it from exploding.

But in order to ensure its effectiveness, he added sugar to the gunpowder of the shells.

He originally just wanted to make the power look more terrifying, but he didn't expect the actual effect to far exceed his expectations.

One sulfur, two nitrate, three charcoal, add a little sugar and it’s called Big Ivan. Netizens are not lying to me!

Looking at the big pit on Pancheng Mountain, Wei Wu couldn't help but sigh in his heart!

Next, Wei Wu specifically demonstrated the improvement effects of the Academy of Science and Technology on gunpowder.

In order to maximize the contrast effect, he used the original ratio method of the Ministry of Industry.

On the other hand, a standard gunpowder ratio was used, and sugar was added to the gunpowder.

boom!

boom! ! !

With two huge explosions, the display of achievements on the training ground came to an end.

Even when the audience walked out of the training ground, there was still a feeling of wanting more on their faces.

Those officials are fine, it’s mainly wealthy businessmen and ordinary people.