Being a teacher of a five-year-old crown prince is actually a very easy thing, because Prince Louis is in poor health, most of the time is resting, and he has to learn other knowledge, so Ye Kai does not have much time to spend with him.

However, the crown prince likes Ye Kai very much, because Ye Kai has been taking care of his diet since he came.

Compared with Ye Kai, a traveler, the skill of the chef in Medon Castle is simply unsightly, so with Ye Kai, Crown Prince Louis's appetite is much better, and people have become more complex.

For this reason, Louis XVI, who was busy making locks and hunting, also made a special trip to the Château de Merdon to express his gratitude to Ye Kai.

"Father! Father! The milky shouts came, not from the Crown Prince Louis but from Nguyen Phuc Kyong.

It has been more than a year since he left Quang Nam, and Ruan Fujing has grown from five to six years old, and he has become more and more attached to Ye Kai, and Ye Kai also has a certain affection for Ruan Fujing.

Although it was the same thing between him and Ruan Fujing's aunt Ruan Shi Yuwan, and he had a lot of complaints about Ruan Fuying and Ye Kai, but in the face of a cute six-year-old friend, Ye Kai couldn't resist at all.

In the slow contact, Ye Kai found that Ruan Phuc King was actually in a state of extreme lack of love, and his father Ruan Phuc Anh didn't care about anything except for the restoration of Quang Nam Kingdom.

The same is true for Nguyen Phuc Khanh, since he was older, Nguyen Phuc King has never enjoyed the love from his father.

Since he was born, the Quang Nam Nguyen family has been in a state of displacement, which has also caused Nguyen Phuc Yen to be particularly unsafe

From Quang Nam to Paris, after slowly Ruan Fujing became familiar with Ye Kai, he quickly transferred his admiration for his father to him.

Even with the title that led him to Ye Kai, he changed from an uncle to a nondescript father, Ye Kai corrected it several times, but Ruan Fujing still didn't change it, so he left.

"Your Highness Louis, he wants to eat the paella you made today!" Ruan Fuying dragged her thin body and walked over, and the Guangnan maid behind her was not surprised at all that Ruan Fujing called Ye Kai her father.

"Good! I'll do it right away! Ye Kai took Ruan Fujing's hand and walked towards the kitchen, at this time Prince Louis must have been waiting nearby.

Maybe it's because of their similar identities, or maybe it's because the two of them are not in good health, Nguyen Phuc King and Prince Louis quickly became best friends, not only the best, but basically the only friend.

Under the influence of Nguyen Phuc Kyung, Crown Prince Louis's Chinese has improved rapidly, but in about two months, he has been able to conduct basic conversations in Chinese.

"Mr. Zinedin, there is your letter!" After cooking the delicious paella and coaxing the two children to take a nap, a royal guard from Medidon Castle walked over.

Ye Kai opened the letter and saw that it was sent by Lavoisier from Paris, and he had made a major breakthrough in the research of nitroglycerin, and he invited Ye Kai to go to Paris to witness it.

Ye Kai took the envelope and walked towards Polinafrao's residence, it seems that the two months of paradise are coming to an end, if Lavoisier's research comes to fruition, it is estimated that he can also mix the title of chemist!

If there is anything in Europe that satisfies Ye Kai now, it must be the academic atmosphere here and people's desire for breakthroughs in science.

In today's Europe, whether you are Joseph II of the Habsburgs, or the mad king of Britain across the Channel, Josan Joe, or even the great Grand Duke, Marquis, etc.

Regardless of the title or title, the nobles are most enthusiastic about making friends with various scientists and artists.

Because if you make friends with scientists, you will appear that they are very smart, and if you make friends with artists, you will appear that they are very tasteful.

Although the Patent Act would not be ratified until six years later, in 1791, the custom of respecting inventions and patents had already formed a recognized important virtue on the European continent, and the rules of monopoly law, the ancestor of patent law, appeared in England more than 100 years ago.

Privately, the aristocracy must have taken valuable patents, but on the surface, every nobleman and even the state is a staunch supporter of patent rights.

Therefore, no matter how vicious, cruel and dirty the Europeans of this era are, they do represent the most advanced development direction of this era, and this can be regarded as the greatest contribution to the world by the white-skinned people who have not done much good in this vote!

"Zinedin, you are still an expert in chemistry, and even Monsieur Lavoisier has to cooperate with you! You're amazing! ”

Mrs. Pollina's eyes sparkled, and after a period of contact, Mrs. Pollina felt that she was becoming more and more unable to see through the Seris in front of her.

He was a nobleman, a very good cook, and the dishes he cooked at the Trianon dinner were already popular across the Channel!

According to the greedy George. Augustus. Fred's later George IV said on more than one occasion that he wanted to invite him to England.

He was even more attentive to his children, and in just two months, he had become the closest person to Crown Prince Louis.

Madame Polina even heard the crown prince learn that the prince of Quang Nam called Ye Kaifu, although Madame Polina did not know the specific meaning of the word, but the admiration and trust in the eyes of the crown prince were false.

And now, he is still a chemist, can there be such a perfect man in this world?

"Madam, then Fujing may have to ask you for a while, I will come back after the experiment with Monsieur Lavoisier!"

Mrs. Pollina, who had fallen into a delusion, shuddered, and for the first time she felt embarrassed.

"Okay! Rest assured, Mr. Zinedin, I will take good care of the prince! ”

Ye Kai smiled faintly, there was no problem for him to take down this female raspberry now, but for this kind of white lady who didn't take holding hands seriously at all, Ye Kai felt that it was better to fish and observe again.

Polynafrao's identity is very sensitive, and the political situation in France has become more and more complicated recently, so Ye Kai must be careful.

。。。。

Paris, Lavoisier's laboratory, the neatly dressed and polite chemist who met Ye Kai is gone.

Now what Ye Kai saw was a sloppy man with unkempt head, sunken eyes, and red eyes, but his spirit was very good, even more excited than Ye Kai.

"Your Excellency, Marquis, come and see, I have mastered some knack for concocting your nitroglycerin!

This is a very troublesome thing, whether it is concentrated nitric acid or concentrated sulfuric acid, but it is very dangerous, when they are combined, if the temperature is a little higher, the reaction between them will be particularly intense, I think there is even a danger of explosion at any time, but if the temperature is kept at a low level, his reaction level will slow down, slow to useless, the temperature in the middle is really difficult to master! ”

The excited Lavoisier pulled Ye Kai's hand, it was a chirp, that thing was like a child getting a beloved toy, holding Ye Kai's right hand and not knowing what else was sticking, it felt slimy, but it was not a toxic and harmful substance!

"This is Abel, this is Benson, and this is Bruce, all of my right-hand men and apprentices, and they will show you the results of our nitroglycerin research, and this time I'm going to make it and try his explosive power!"

Lavoisier introduced Ye Kai to the members of his laboratory, these three were probably the most important, and the other members who stood stiffly were estimated to be ordinary members, and Lavoisier felt that there was no need to introduce them.

The blonde man named Abel smiled brightly at Ye Kai, "It's a pleasure to meet you, Your Excellency the Marquis of Seris, please come with me!" ”

Ye Kai touched his nose a little uneasily, he vaguely remembered that this nitroglycerin should be very unstable and easy to explode!

Why are these Rao expressions so relaxed, as if what they are going to study is nothing more than alcohol?

Could it be that I am mistaken?