This delicate glass ball is a return gift from Ang Lee to Yang Yurou, which is a very chic little gift, and it has been given to many people in the past, but after more than a year of practice, the craftsman's skills have improved a lot, so this time the glass ball, whether it is pure or workmanship, is incomparable before.

The most important thing is that this is a customized gift, not an assembly line product, you can never buy such a good thing on the street, and the patterns and words inlaid inside are almost all precious jade materials.

According to different nobles, the internal patterns and words are also different, this is the most special, but also the most impressive.

After reading this poem, which almost everyone knows, Yang Yuhuan couldn't help laughing and handed the glass ball to his sister.

"This must have been given to you by this kid Ang Lee! My Fair Lady, good gentleman, what is he doing here, he wants to marry you as a concubine? Hehehe! ”

Yang Yuhuan was rarely so happy, laughing so much that his body trembled, and he had a plump and charming atmosphere.

"My sister also makes fun of me, as long as he dares to be hired, I dare to marry, isn't it just to be a concubine, as long as the wife is gone, the concubine is the biggest, my sister said yes!"

Yang Yurou said very boldly, not shy at all, and even teased her sister, at this moment, isn't Yang Yuhuan the emperor's concubine, but the emperor at this time has no queen, and the concubine, the emperor's concubine, is the biggest wife.

Because the relationship between their sisters is relatively good, and Yang Yuhuan's personality is relatively weak, therefore, as an older sister, Yang Yurou dares to say anything, and she is not worried that her sister will be angry at all, even if her sister is angry, she can do it in a few words.

"I'm afraid of you, so I won't mess with my sister."

Yang Yuhuan smiled, looked at the palace maid beside him, and said, "Go, bring the glass ball of the palace and let my sister take a look." ”

"My sister also has the exact same glass ball?"

Yang Yurou asked curiously.

Yang Yuhuan smiled: "It's not exactly the same glass ball, it's exactly the same big glass ball." ”

"Then I'll have to take a good look and see what poetry this kid has written."

Soon, an identical rosewood box was brought over and placed on the table next to it.

Yang Yurou gently opened the lid of the wooden box, saw the glass ball inside, and carefully picked it up to watch.

"A pink peony flower, there are two small butterflies on it, the leaves made of jade, the flower branches of black jade, the poems carved by topaz, looking back and smiling, the six palaces have no color, hehe! There is another sentence here, the clouds want to dress and the flowers want to look, and the spring breeze blows Revlon. ”

Yang Yurou's expression seemed very excited, paused, and said: "Sister, this kid is quite fancy, you say it so well, although my sister doesn't know much poetry, but these few sentences can still be understood, looking back and smiling, the six palaces have no color, is it possible that this kid is bold and daring, and he has fallen in love with his sister, hehehehehe!" ”

He laughed out loud.

Yang Yuhuan also laughed, laughing with flowers, as a woman, it is undoubtedly a very proud thing for her appearance to be recognized by men, and Yang Yuhuan is naturally not exempt from vulgarity.

It's just that her status is too high, except for the emperor who is over half a hundred years old, no man in the world dares to blatantly praise her beauty, so as not to bring trouble to herself, and it is in this situation that Ang Lee's praise makes her heart surge and has a very proud sense of satisfaction.

"My sister talked nonsense again, but this kid is indeed a little weak-hearted, and the servant he sent quietly told me, let me keep it well, don't let Your Majesty see it, you say, is he weak-hearted."

When Yang Yuhuan said, not to mention how proud he was.

For a man, if his wife is remembered, he will be very angry, and for a woman, being remembered by others for her beauty is a very proud thing, which is enough to show that her beauty is rare in the world.

"Oh, there's such a thing, hahaha! Does that sister really intend to deceive Your Majesty? ”

Yang Yurou asked with a smile.

Yang Yuhuan nodded and said, "It's just a small gift, and it doesn't matter much if you don't let Your Majesty know, just hide it!" Sisters are not allowed to talk nonsense. ”

"Okay, okay, I won't say it, I came today, I wanted to show my sister the novelty objects, but I didn't expect my sister's glass ball to be more delicate than ours, this kid knows the weight, give the best to my sister."

There was a sour taste in Yang Yurou's words.

Yang Yuhuan said with a smile: "Sister is wrong, of course the best is for Your Majesty, in Your Majesty's bedroom, there is a bigger glass ball?" There is a beautiful golden dragon inside, which is made of gold, and the words inside are all woven with gold threads, which is enough for hundreds of words. My sister just took a look at it and thought it was exquisite, better than the two of us combined. ”

Yang Yurou frowned, and said softly: "This kid is good at these strange tricks, if you have nothing to do, you have to go to his workshop to see if there are any other good things." ”

"Okay, my sister just go more, it's inconvenient for me to go out of the palace often, if you encounter something good, don't forget to bring a copy to your sister."

Yang Yuhuan said.

Yang Yurou said sourly: "This still needs to be said, but this kid is very sensible, and he will definitely take the initiative to send it over, and it must be better than the one given to me, hum hum...... Looking back and smiling...... Ha ha! ”

"Hahaha!"

In the R&D center, Ang Lee met many craftsmen and subordinates who had been absent for more than a year, all of whom were the pillars of the Tang Dynasty and Ang Lee's good assistants.

They were very obedient, and in more than a year, they completed the important tasks assigned to them by Ang Lee with quality and quantity, which made Ang Lee's next research and development work a lot easier.

"Li Shilang, these things are the things we have developed according to your requirements, and you see what needs to be improved."

One of the subordinates pointed to the room full of strange things and began.

Li An picked up a tuning fork at random, nodded with satisfaction: "Very good, very good, you have all worked hard, but this is just the beginning, below, we still have more things to do, everyone must cheer up and meet greater challenges." ”

"Li Shilang, rest assured, we will go all out and absolutely live up to Li Shilang's expectations."

The crowd said.

Li An nodded with satisfaction: "Very good, let me arrange the R&D task below!" A few of you and a few of you, responsible for the research and development of this project, a few of you make the objects on this drawing, wooden ones are fine, and a few of you, understand this thing, I really can't understand it, ask me, and you also have a task......"

Many subdivided R&D tasks, Li Ang drew a good picture and handed it to these craftsmen, so that they could complete it carefully according to their own requirements, as long as these subordinates were completed, there would be no big problem in manufacturing the finished product.

There are many items that Ang Lee has to develop, not only the telegraph and telephone that promised the emperor, but also guns, and many other particularly useful things.

Because the invention of any project is very difficult and takes a long time, Ang Lee is carrying out all research projects simultaneously, so as to maximize efficiency.

With the gradual improvement of machine tools and the maturity of power technology, as well as the gradual improvement of the level of steelmaking, all the technical conditions for manufacturing rifles are fully equipped, that is to say, as long as it takes some time to study, it is very easy to manufacture compound guns, and with the development of glass technology, it seems that it is not difficult to get a scope, so it seems that it is easy to get a sniper rifle This artifact.

Moreover, after all kinds of steel are still being studied, the quality of steel will become better and better in the future, the guns that can be manufactured will naturally become more and more advanced, and the barrels of cannons will become thinner and thinner, which plays an extremely important role in improving the combat effectiveness of the army.

The invention of the telegraph requires the most basic technologies, such as batteries, copper wires, and electromagnetic inductors, which are the technologies that must be possessed for the invention of the telegraph, and these are not much difficult for Ang Lee, copper wires have long been able to produce, and the research and development of electromagnetic inductors is not much difficult, as for the research and development of batteries, there is also no great difficulty, but if it is produced on a large scale, it is also necessary to consider the cost, after all, the simplest dry battery is a disposable thing, and it will be discarded when it is used up.

At this time, processing high-quality barrels, firing pins, developing electromagnetic inductors, and manufacturing dry batteries have become the most important problems that Li An needs to solve, and these details are all handed over to his subordinates to complete.

Among these R&D projects, Ang Lee's most urgent need is a battery, as long as this thing is made, derivative products can be made immediately, such as flashlights or something.

At the moment when electricity has been invented, the importance of batteries should not be underestimated, after all, batteries have great portability and cannot be compared with ordinary electricity.

In places where there are street lights, direct lighting can be done with electricity, but on country roads without street lights, using batteries is undoubtedly the best option.

Judging from the popularity of flashlights in later generations, the cost of batteries should be very low, and they must be very low.

The main purpose of Ang Lee's invention of the battery this time was to invent the telegraph, and the flashlight was just a derivative of the incident, and it was also a very practical derivative.

In Li An's impression, the most common battery in later generations is the dry battery, also known as the zinc-manganese battery, the advantage of this battery is very reliable, the cost is relatively lowest, it is a very large-scale popular battery, the disadvantage is that it is disposable, there is no way to charge it.

And to manufacture this kind of dry battery, there are not many raw materials, there are carbon rods, a mixture of graphite and manganese dioxide, fiber web, ammonium chloride solution and starch, metal zinc skin and other materials.

The manufacture of carbon rods is not a problem, graphite is also a small matter, starch is even less of a problem, and the output of metal zinc is not high, but it has been able to be manufactured, and there is no problem.

Manganese ore and manganese dioxide refining technology are also difficult for Li An, as for the ammonium chloride solution, it is a by-product of Hou's alkali making process.

The so-called Hou's alkali making method is to add carbon dioxide and ammonia with sodium chloride solution to produce soda ash and ammonium chloride, that is to say, the by-product of this alkali production method is ammonium chloride solution, and the cost is simply not too low.

That is to say, all the raw materials for the manufacture of zinc-manganese batteries can be easily obtained and successfully developed, and what Ang Lee and his talents need to do is to manufacture the zinc-manganese batteries as soon as possible, and then optimize the design of various components to maximize cost savings and make the manufactured dry batteries cheap enough.

The model of the dry battery, Li An is naturally clear can not be clearer, every part inside, Li An has seen countless times, although the dry battery of later generations, will be written to prohibit private disassembly, so as not to be dangerous, but these are not a problem at all for Li An, as long as you want to dismantle, then boldly dismantle, regardless of whether it is dangerous or not, moreover, Li An has dismantled so many dry batteries, and has not encountered a danger, the carbon rod inside has collected a drawer, so, for the detailed structure of the dry battery, No one knows this better than Ang Lee.

And this time to develop dry batteries, Ang Lee has to research and develop according to the appearance of his previous life's memories, and he wants to create exactly the same dry batteries.

"Li Shilang, what is this?"

A subordinate passed by Li An's side, saw what Li An was messing with, and asked.

Li An smiled and said: "It's nothing, this is the experimental circuit I designed, there is still a battery missing here, as long as the battery is put into the circuit, this small bulb can be lit, this is a switch, it is to control the circuit on and off." ”

Although the dry battery has not been made at the moment, Ang Lee still took a step ahead to get out the small bulb circuit, which is the most basic circuit diagram in later generations, and is generally available in every junior high school physics laboratory.

"Li Shilang, just this little pimple, can it really generate electricity?"

The subordinate looked at the dry cell battery drawings on the table and asked suspiciously.

In fact, what he was curious about was how Ang Lee knew that after putting these strange things together, electricity could be generated, and why didn't he know? It's really unbelievable where Ang Lee learned these things.

Li An naturally didn't explain too much to his subordinates, smiled, and said: "As long as you do what the official says, you will definitely be able to make the battery, don't ask too many questions, just do what I say." ”