Glycerin has a wide range of effects, but the most widespread application is nitroglycerin. I believe that later generations must be very familiar with nitroglycerin, and it is also involved with a very famous person, this person is Nobel.

Zhu Yijun knew the principle and knew how to do it, so he naturally set his sights on more advanced gunpowder.

Black powder has too many shortcomings, and it is basically impossible to make a more powerful gun. If you want to make guns, not only the steel industry needs to be upgraded, but also the gunpowder industry, whether it is propellant or primer, all need new processes, and it is not easy to meet the requirements.

Of course, Zhu Yijun didn't plan to use the glycerin he got now, he had to wait, he had to eat the rice one bite at a time, and the road had to be taken step by step.

"See this?" Zhu Yijun pointed to glycerin and said to Chen Ju with a smile: "This thing is called glycerin, it is very useful, and it can also be used to make money." Different quality fruits contain different levels of tannins, which are the source of bitterness and astringency in fruits. ”

"Well, you don't have to remember what the tannins are, you just remember that this glycerin removes the bitterness and astringency from the wine. It can enhance the thick taste and aroma of the juice itself, and the appearance is bright, sweet and sour. ”

"So, when you go back, you find a jar of fruit wine, and then try it for yourself and see how it works."

Chen Ju nodded hurriedly, his heart was shocked, he never thought that a bucket of lard, the emperor could use it to make that soap, and also make wax, and then he could also make this glycerin to remove the taste of wine.

Of course, Chen Ju knew that the thing was bitter and astringent, and it was very unpleasant, far worse than grain wine.

But the cost of fruit wine is low!

Some of the fruit things are all over the mountains, and the cost of the fruit wine produced is very low, if it can really solve the problem of bitterness of fruit wine, then the fruit wine will definitely be able to sell well. How much profit there is, Chen Ju doesn't dare to think.

"Do a good job, do the business, and then you will have money!" Zhu Yijun said to Chen Ju with a smile, and turned around and left after finishing speaking.

In the following days, Zhu Yijun was idle again, and Zhang Juzheng was still cleaning up the officialdom and laying out for his own reform plan. These have little to do with Zhu Yijun, and he is not ready to interfere, just watch it.

In July, a message from Dongchang caught Zhu Yijun's attention, and Yu Dayou was dismissed.

Since Zhu Yijun mentioned Yu Dayou last time, Zhang Whale has been paying attention to this matter. As soon as Yu Dayou's dismissal came out this time, Zhang Whale ran to Zhu Yijun as soon as possible.

"Yu Dayou was removed?" Zhu Yijun looked at Zhang Whale and asked hesitantly, "Why was he removed?" ”

"Back to the emperor, last month the pirates raided Luxiaao, and Yu Dayou was dismissed because of the defeat in the war." Zhang Whale didn't dare to say anything, just made things clear and laid out the facts, which was the most effective for the emperor here.

Zhu Yijun nodded, he knew that Yu Dayou was very unhappy now, and he had a lot of credits, but he was always dismissed, with ups and downs.

For such a talent, Zhu Yijun naturally couldn't waste it so much, so he said to Zhang Whale: "Let Yu Dayou enter Beijing!" After thinking about it, he said: "You Dongchang sent someone to do it!" ”

"Yes, Emperor!" Zhang Whale nodded hurriedly, he finally breathed a sigh of relief, this time he made the right bet, this Yu Dayou is really valued by the emperor.

Zhu Yijun thought about it and felt that it was not good, Yu Dayou was upright, don't misunderstand anything: "In this way, Dongchang sent a henchman to go over, and he couldn't leak the news, it can be regarded as a secret order!" ”

"Let Yu Dayou pretend to be sick, and then go to Beijing to find Imperial Doctor Li to treat him, understand?"

"The matter of the secret order is kept secret from outsiders, but you can tell Yu Dayou that I have a confidential matter to discuss with him when I asked him to enter Beijing."

Zhang Whale's heart moved, is the emperor of his family so cautious? His heart also became cautious, and he nodded hurriedly: "Don't worry, the old slave will definitely handle this matter well and bring Yu Dayou to the capital." ”

Zhu Yijun nodded, he wanted to find an opportunity to get Yu Dayou to the capital.

Now that Yu Dayou has been dismissed, the opportunity is just right, get him to the capital, plan for a period of time, and then find an opportunity to build a navy. If he really couldn't do it, he quietly arranged him to Liaodong, and then went there to build a ship and build a navy.

It's okay over there in Jizhou, but it's Qi Jiguang's territory over there, I'm afraid there will be problems.

Zhu Yijun didn't think of any good way for a while, but there is always a way, and it is serious to get people over first. Don't talk about others, it's good to give Yu Dayou a conditioning body first, and let a generation of famous doctor Li Shizhen give him conditioning.

Yu Dayou's age is not young, and with so many years of fighting, there must be a lot of dark injuries on his body.

Take care of it and live a few more years, this is the king's way, only if he lives a little longer, then he can help himself lay a good foundation for the navy. Whether it is to go south to suppress bandits in the future, or to go to sea to do business, it will not work without a strong navy.

Not to mention anything else, just Lin Feng, the biggest pirate on the coast of Daming, can't beat the sailors of Daming at all.

Although Lin Feng was exterminated later, it was Lin Feng who was defeated in the battle against Manila and the Spaniards, and was exterminated by the Ming sailors. It's just that Lin Feng was wiped out, and another group of pirates rose along the coast of Daming, and they were the pirate group headed by Zheng Zhilong.

Regarding Lin Feng and Zheng Zhilong's pirate group, Zhu Yijun has no good feelings.

To say that they prevented the colonization of the Ming Dynasty is basically nonsense in Zhu Yijun's opinion. With the strength of Spain and the Netherlands at that time, wanting to colonize the Ming Dynasty was basically equivalent to a fool's dream, even if they harassed the coast, they would not end well.

These pirates have no bottom line, they go ashore to rob, collude with the southeastern gentry to smuggle, it can be said that there are many crimes.

Only when the imperial court does not have a navy and the imperial court is useless, does it show that they are coming. Now that Zhu Yijun is here, he is ready to build a navy and prepare to build a sea fleet of the Ming Dynasty, and these pirates will be cleared as soon as possible.

First, it is necessary to restore stability on the southeast coast, and second, it is necessary to cut off the smuggling routes of those gentry on the southeast coast.

Pinch the sea trade, they don't pay taxes, and Zhu Yijun also has a way to make them spit out the money. In these years, there is nothing more profitable than sea trade, it can be said that there is no capital to trade, many times doing sea trade and being pirates is the same meaning.

Zhu Yijun knows how to build ships, but he can't train soldiers, which is why he takes a fancy to Yu Dayou.

It doesn't matter if you don't know, Yu Dayou just knows, Zhu Yijun believes that if you let Yu Dayou train, he will definitely be able to train an elite soldier. When the time comes, I will be able to communicate with him and let him teach him some military affairs of his time.