Daming: Grandpa Emperor, please get up and sit on my throne!

Seeing Zhang Yuqing coming towards him.

Zhu Yunhuan simply put down the foot he had just raised.

When he saw clearly that the long thing in the other party's hand was actually a roll of ordinary-looking cotton cloth, Zhu Yunhuan had a rough idea in his mind. He raised his eyebrows and showed some interest as he looked at Zhang Yuqing's hurried figure.

The other party walked very quickly and soon came in front of Zhu Yunhuan.

Zhang Yuqing performed a standard disciple's greeting: "Disciple Zhang Yuqing, greets His Majesty."

"Have you come up with any results on the impregnation and treatment process of flame-retardant cotton?" Zhu Yunheng asked directly, looking at the roll of cotton cloth in the other party's hand.

He came to the Alchemy Department once before.

This group of Taoists came to him to present their treasures. They took out a small piece of flame-retardant cotton cloth that they had obtained by chance, and also asked Zhu Yunhuan for advice.

After so much time has passed, it’s time to come out with the experimental results.

"Your Majesty has a keen eye. There's nothing you can't anticipate," Zhang Yuqing replied, complimenting Zhu Yunhuan with a flourish. He then held the roll of cotton cloth in both hands and said, "Under Your Majesty's guidance, we've been constantly controlling variables, experimenting with different temperatures and pH levels... and have finally established a stable impregnation process! This roll of cotton cloth already has a flame retardant effect. Upon hearing that Your Majesty is here, I've come to present it to you. Please take a look!"

Hearing what Zhu Yunhuan and Zhang Yuqing said.

The eyes of other people on the training ground lit up, and they all stared at the roll of cotton cloth in Zhang Yuqing's hand with excitement and even greed.

The effect of flame retardant cotton...

They had seen it before, so they knew that this flame-retardant cotton cloth was not nonsense.

For those who have been dealing with firearms, muskets, and gunpowder for years, if they had a piece of clothing made of this material, it would save their lives in many emergencies. How could they not be excited and jealous?

To know.

Once the formula and process are determined, it means that this thing can be mass-produced.

And this so-called flame retardant cotton.

It's not just for those of us who deal with firearms.

Other Ming Dynasty comrades and soldiers can use it as well - in addition to guns and cannons on the battlefield, there are also rockets (flammable materials tied to the heads of bows and arrows that are ignited and fired). Sometimes when encountering a fire attack, it is easy to suffer heavy casualties if you are not careful.

Zhu Yunhuan first took a look at the roll of cotton cloth. From the outside, it looked no different from ordinary cotton cloth. He then glanced at the people around him and understood the importance and curiosity of the others here.

So he ordered, "Who among you will try it?"

"I am willing to give it a try!"

"I'm coming!"

"..."

Several people around immediately volunteered to step forward, eager to try - since it was a matter concerning their own lives, of course they were enthusiastic.

Then, the people in the front exchanged glances tacitly.

He took the cotton cloth from Zhang Yuqing and spread it out together.

A few people also took out tinder, and as the cotton cloth was spread out, they couldn't wait to blow the tinder to light it.

"A whole roll of cotton cloth has been spread out. You all can try it with the fire in your hands to see the latest achievements of the Chemistry Department." Zhu Yunhuan said loudly.

First, the musket was completely formed, and then the flame-retardant cotton came along... The functions of these two, one offensive and the other defensive, are both widely used and of great strategic significance.

He was in a particularly good mood at this time.

Although he knew that Zhang Yuqing would be absolutely sure before handing the finished product to him, he was still willing to witness it with everyone and have fun.

Feel the approachable atmosphere of Zhu Yunhuan.

Everyone relaxed and became even more excited, starting to cheer:

"Yeah! Try it! Try it now! If this good thing is real, and we can wear it... who knows, it might even save our lives someday!"

"Hahahaha! That's right! Put the tinder on it and see how powerful this cotton cloth is! Hahahaha!"