If Ang Lee wants to control these talents well, he must have reservations, and he must not tell all his secrets to these guys, and even if he really says it, these guys may not believe it, and it is very likely that it will bring him a lot of trouble at that time, so it is better not to say it too clearly.

For the research and development of battery products, Li An's confidence is very sufficient, as long as a few important accessories are made, the product can be successfully developed, which is not much wasted time, and once the research and development is completed, Li An needs to build a special workshop to manufacture batteries, specifically for the production of batteries, and the scale can not be too small, in order to share the cost of a single battery with a huge output, so that the production of batteries can be cabbage price, so that ordinary people can also afford to use.

Even for Ang Lee, the technology of dry battery is very simple, and there is no difficulty in research and development, but if you really want to make a sample, it will take a certain amount of time, and after the sample is made, you also need to design a reasonable assembly line workshop to save costs to the greatest extent, which takes time, so it seems to be a very simple small object, and you really want people to use it, without half a year, I am afraid it is difficult to do.

It is not necessary to purchase too many raw materials to make samples, so the raw materials that Li An needs can be prepared quickly, and then, the person in charge of all aspects can start to try to make batteries according to Li An's requirements, as long as the battery can really be discharged, the experimental task will be completed, and then a large-scale assembly line can be designed.

Li An originally wanted to devote himself to research and development, but the emperor didn't seem to be willing to let Li An be too idle, and had already asked Li Yu and the others to learn from him before, but this time the emperor was even more ruthless, and directly asked a large part of the grandchildren of Baisun Academy to learn scientific knowledge from Li An.

Of course, some of them are too old and too young to learn from Li An, only those who are moderately old will follow Li An to learn scientific knowledge, of course, these guys are not all imperial grandchildren, and a small number of children are imperial grandchildren, such as Li Shi, the eldest son of Li Yu, the grandson of the emperor, has reached the age of learning, although he is still too young, but the emperor still wants him to study earlier.

Since his sons have come to study, Li Yu, as a father, is naturally not good to come together, otherwise the father and son will study in the same class, if the son learns better than Lao Tzu, wouldn't it be very embarrassing, so Li Yu was very interested in not joining the ranks of learning, and only pushed his son forward.

In fact, all the emperors and grandsons are educated, and they are all elite talents of the Tang Dynasty, and everyone's cultural heritage surpasses Li An, but these people are only far superior to Li Ang in the field of literature, and in the field of science, Li Ang casually moves his fingers to surpass them by a large margin, which is the emperor's main willingness to let the emperors and grandchildren come to learn from Li An, of course, even if these emperors and grandchildren can't learn anything, as long as they know a little fur, it's always good, even if they have grown knowledge.

Even, sometimes, the emperor himself will study some scientific knowledge, after fully understanding, he seems very excited, thinking that Li An is a genius, can actually discover many wonderful phenomena in life, and these most basic knowledge, naturally need to let his children and grandchildren know, so, the emperor asked Li An to teach these imperial grandchildren when he has time, so that his grandchildren can know some of the most basic scientific knowledge, so as to increase their own knowledge.

Since the emperor has already spoken, Li An naturally can't shirk, the knowledge that should be taught still has to be taught, however, Li An will uphold the purpose of quality education, and will never force these aristocratic flowers of the Tang Dynasty to learn, they love to listen or not, learn whatever they want, and the burden of learning is very easy, and they will not be assigned homework, so as not to exhaust these flowers.

As for the content of the teaching, Li An had already thought about it, that is, to do some simple physics and chemistry experiments, let them see the excitement, and then tell them the most basic principles in these experiments, so that they can deal with these guys.

Because there are too many grandchildren in Baisunyuan, for the sake of safety, Ang Lee needs to go there in person and give a lecture in one of the internal halls.

"Li Shilang, Your Majesty said that these imperial grandsons are all juniors, and Li Shilang can call them by his name without any scruples."

A little eunuch who led the way led Li An into Baisun Courtyard and spoke.

Li An nodded and strode in, followed by two assistants from the R&D center, who carried some of the most basic instruments and acted as assistants for Li An's teaching, that is, to do some hard work.

"Li Shilang."

As soon as he entered the lobby, the first thing Li Ang saw was eight old men who were much older than him, who were the masters of the emperors and grandchildren, and were responsible for educating the emperors and grandchildren to learn cultural knowledge, that is, poetry and songs.

Because they were worried that Ang Lee would not be able to shake these arrogant and expensive flowers of the motherland when he first arrived, they also planned to listen in the lobby to deter these delicate flowers and keep them from being confused.

To say, the status of these emperors and grandsons is too high, and the future emperor may come from these emperors and grandsons, but the identity of the master who is responsible for teaching is not low, half of the eight highly respected emperors and grandsons are from the Tang royal family, and the remaining four are also from the five surnames and seven wangs, all of whom are well-known nobles, otherwise, where is the qualification to educate the children and grandchildren of the Son of Heaven.

It is precisely because the status of the master is also relatively high, so when they teach, they can deter these emperors and grandsons, and if any emperor dares to disobey, they will definitely teach a lesson.

Ordinary emperors and grandsons, they can directly use the ring ruler to teach, and the emperor will not blame if he knows, and for the emperor's grandson and the particularly favored emperor's grandson, these masters naturally dare not really punish corporal punishment, but they will teach them a hard lesson to the close companions, and will beat the emperor's grandson in front of the emperor's grandson.

Under normal circumstances, those who can be the emperor's grandson's companion are at least the concubines of the five-grade minister's family, and their status is neither high nor low, and the coincidental thing is that in the emperor's grandson's companionship, it is very likely that there are the grandsons of these masters.

When the emperor and grandson make a mistake, they must cut their own grandson and severely punish their own grandson to make the emperor and grandson admit their mistake.

For Li An's ability, these old guys are naturally very recognized, but at the same time, there is still a trace of contempt in their bones, after all, in the eyes of these cultural people who are familiar with poetry and books, only poetry and book etiquette are the most noble, as for the scientific knowledge that Li Ang mastered, although it is also very used, and completely changed the status quo of the Tang Empire, but they also feel that these are just tricks and tricks, and they can't be elegant. The main energy is still used to study cultural poetry books.

Of course, not to mention the Tang Dynasty, even in the civilized society of later generations, many people also adhered to the idea that studying to be an official is the most noble, and the rest of the work is just a trivial idea, scientists have always been a profession that is not popular with most people, and being an official is always the highest pursuit of people.

The minds of these old guys have long been ingrained, and they will never think that science and technology are more important than poetry and etiquette, but they also recognize these strange skills that can improve people's living standards, but they can only rank this kind of science after poetry and books.

There are eight King Kongs sitting in the academy, all the emperors and grandsons are sitting relatively honestly, none of them dare to be presumptuous, they all look at Li An curiously, and the two earth buns following behind them.

Li An took a look, there were more than 30 imperial grandsons and imperial grandsons in the room, Li Longji's grandsons are definitely more than that, but some are too old and too young, they will definitely not come to class, and they are not easy to manage, only five or six to fifteen or sixteen-year-old children are the best to manage, and they are also the most obedient.

These imperial grandsons are basically what Li An has never seen, after all, Li An will not go to the Baisun Courtyard to play when he is fine, so naturally he can't see these guys, but there are several children that Li An has seen, one is Li Shi, the eldest son of Li Yu, the grandson of the emperor, Li Huai, the son of Li Mao, the eighteenth son of the emperor, and the other is Li Wei, the eldest son of the sixteenth son of the emperor, and the rest are a little eye-catching.

These children are the emperor's grandchildren and great-grandchildren, and they are all the emperor's bloodline, but not all of them are favored.

For example, some princes' mothers are just a small lady beside Li Longji, and the status of this prince is naturally relatively low, and this prince married a concubine, and the child born by the concubine is a concubine.

In the prince's generation, there is not much difference in status, after all, although many of them are concubines, at least they are all crowned kings, since they are kings, their status is naturally more respectful.

And the next generation of emperors and grandchildren is different, their father is crowned king, but many of them do not have titles, at least a few people are crowned kings, some of the sons of the princes are difficult to be crowned kings, and the concubines of the princes are even more difficult to be crowned kings.

This is the gap between the two generations, if it is a few generations back, it is estimated that it can only be the poor people, just like Uncle Liu Huang during the Three Kingdoms period, his ancestors were also emperors, but after being estranged from generation to generation, when it came to Liu Bei's generation, he became a poor man selling straw shoes.

Of course, there is another reason why these emperors and grandsons have not been crowned kings, that is, they are not too old to be crowned kings, or they can at least be crowned kings or something in the future.

And the grandson of the emperor is more special, Li Yu has long been crowned king, and Li Yu's son, not long after he was born, was named the king of Fengjie County, which shows that the grandson is different.

In other words, this grandson of the emperor was named the king of the county not long after he was born, and many of his uncles have not even been mixed with the king of the county for the time being, so it is estimated that it will take a long time.

Li An taught these grandsons, and his heart was more or less stressed, and at this moment, there were eight old guys listening, and the pressure in his heart was even greater, but fortunately, Li An was well prepared enough to deal with the situation in front of him.

The science course is different from the ordinary poetry teaching, there must be a lot of experiments, otherwise, if you explain it out of thin air, it is estimated that no one will be able to understand, and once you can't understand it, the emperors and grandchildren will lose interest and don't want to continue listening, which provides a good opportunity for Li An to ask for this task, but Li An is a responsible person, and will never deliberately explain some advanced theories that the emperors and grandchildren can't understand in order to be lazy.

Since the emperor asked him to teach these imperial grandchildren, Ang Lee had to show his true skills, starting from the most basic science teaching, and handing over simple physics knowledge to them step by step.

The first lesson is also the most important lesson, after all, people's first impression is very important, Ang Lee wants to make these emperors and grandchildren like his first class, and in the future, they all want to take science classes.

Because there was no blackboard in the lobby, Ang Lee brought one with him and hung it in front of him, then took out the chalk made of plaster, wrote a few big words on the blackboard about the refraction and reflection of light, and then turned around and looked at the many emperors and grandchildren.

Some of these bear children looked at themselves honestly, and some were looking around, but when they saw the eight old guys, they shrunk their necks, obviously a little afraid.

"Ladies and gentlemen, Your Majesty asked me to teach you the knowledge of science, I hope you can learn well, today is the first lesson, we will start with the simplest knowledge."

Li An looked at the emperors and grandsons without humility or arrogance, and then continued: "The refraction and reflection of light, this is what I want to explain today, it is also very common and simple, you will definitely be interested, my class is different from other classes, it will not be very boring, it will be very interesting." ”

After listening to Li An's words, all the emperors and grandsons were in a state of bewilderment, and they didn't listen to what Li An said at all, and the eight old guys who came over to suppress the formation also frowned, wanting to see what Li An was talking about.

"My class is no better than poetry and book etiquette, you need to do experiments regularly, as long as you can understand it through intuitive experiments, it will be more interesting, okay, let's do experiments first."

Li An said, and made a color to the assistant next to him, and the other party immediately handed over the transparent glass, along with a chopstick and a pot of water.

After putting the chopsticks into the transparent glass, Ang Lee let everyone see it, and then said, "Look, are these chopsticks straight or curved?" Who will answer this question. ”

"It's straight, it's straight."

An older imperial grandson blurted out.

Li An nodded with great satisfaction and praised: "What I said is very correct, this chopstick is straight, it is a straight chopstick." ”