"A few uncles are early enough today!" A turtle slave greeted him with a smile on his face: "The girls haven't cleaned up yet, look ......?"

"Less nonsense!" Liu Baokai took out a silver ingot and threw it over: "Old rule, serve a few refreshing side dishes to the sons, and reward you with the rest." ”

Who is going to have trouble with silver? The turtle slave went to arrange it, and a few of them walked to the door of Xinyue's reception room familiarly, and walked in without saying hello. Jiang Tian was dragged into the house by them, and after a while, a few people brought the wine and food like turtle slaves. Jiang Tian looked at the sky, although he didn't eat lunch, but it was still early before dinner, their original intention was actually to find a place to negotiate with themselves, as for what to eat, they didn't care at all, but not only did they trek twenty miles and didn't have any teeth, seeing that so many dishes were served, they didn't care about any table manners, they ate first and then said. The man wanted to talk to him step by step, but in a blink of an eye, he found that this man had already shaken off his cheeks and started chewing, and in this state, it was a negotiation, that is, it was a little difficult to say the whole thing. So I had to stand by and watch him eat.

When Jiang Tian ate a round belly like a cloud, he was satisfied with picking up the wet hand towel that was placed aside and wiping his mouth: "Say, what do you want to know?" ”

At this moment, Tian Xuhai suddenly felt that his method was wrong from the beginning, for Jiang Tian, three full meals and dozens of taels of silver may be the best meeting gift, which is much more useful than those inconsistency roundabout strategies, so he also said straight to the point: "Well, Brother Jiang must know how to make the clairvoyant mirror, right?" ”

Jiang Tian recalled the record in that notebook, and then nodded affirmatively: "The clairvoyant mirror is divided into three main types according to the principle of light transmission, which one do you want?" ”

Sometimes experts have to look like experts, don't look at Jiang Tian's optical knowledge only at the level of middle school physics, but it is more than enough to deal with these people, even if Tang Ruowang is alive, if he really talks about theoretical knowledge, he can make this scientist unable to find the north. Song Yi was frightened by his appearance of being a bamboo in his chest, and thought to himself, no wonder you are so arrogant, there are three different shapes of a clairvoyant mirror!

Liu Baokai was so happy that he didn't think about it carefully and shouted: "Just one kind, just the kind of mirror that you said you can see the Moon Palace!" ”

Jiang Tian sighed: "That's simple, I'll make you a reflecting telescope, and you can take it to the moon to find Chang'e." ”

At this time, people who still know a little bit of technology are calmer, Song Yi hurriedly stopped the pervert's lewd expression, and then asked solemnly: "Since Brother Muhua is so sure, why don't you make it clear to your ancestors?" Even if there are any conditions, we can negotiate. ”

Jiang Tian shook his head with a smile: "I already know that Xiyun's matter is difficult for people to do, but you actually deceived me, but you still think that I am not polite?" ”

Since the window paper has been pierced, these people are also a little weak-hearted, but unlike the pervert's shame of being sorry for his friend, Tian Xuhai is a lot more relaxed: "In this case, let's talk about the conditions, how can Brother Jiang be willing to help?" But how do I know that what my brother said is true? ”

As soon as Jiang Tian wanted to speak, he heard a burst of laughter outside the door: "I said who is so interested today, it turns out to be the four of you?" ”

Hearing this, Tian Xuhai and Jiang Tian frowned at the same time, because the person who came was Xinyue. If this talented woman with an incomparable love for natural science had intervened, she might not have known what would have become of today's negotiations.

The question is who can stop her from plugging in now? Besides, the people have already pushed the door in: "I heard you talking about the clairvoyant mirror from a long distance, this Xiyi thing concubine body is rare to see, why don't you make a few sons for the little girl?" ”

Tian Xuhai, who was still a profiteer just now, immediately turned into a gentle scholar again, stood up and saluted, and enthusiastically let the beauty sit down beside him. Jiang Tian suddenly felt that this was an opportunity that could be used, so he said with a big grin: "The girl doesn't know, this clairvoyant mirror is called a telescope, in fact, it is not a strange thing, as long as it is made according to my design area, it will only be more sophisticated than Xiyi's things, but this price is not so cheap, and Tian Gongzi's wealth may not be able to get one." What's more, this manufacturing method is extremely simple, but how to make it is not so easy. ”

This is the price, the pervert knows that the price of a good clairvoyant mirror in the army is more than one hundred taels, which is still in short supply and is being scrambled by many generals, if it can really make a mirror that is several times better, wouldn't it be possible to match each general with a pair? If nothing else, let's just say that on the Mongolian steppe, if the scouts of the army also have this kind of mirror, the enemy camp can be seen hundreds of miles away...... In fact, Liu Baokai still doesn't know the basic geographical knowledge, affected by the topography and the curvature of the earth, how can an optical telescope see something hundreds of miles away, unless you set up a reflector in the sky.

The overly excited pervert immediately blurted out: "Isn't it just silver, as long as it really works, you can spend as much as you say!" ”

He didn't reply to the shrewdness of a businessman at all, and when he heard Tian Xuhai shaking his head, Song Yi immediately reacted and asked him: "Brother Muhua keeps saying that he can make a good mirror, so can you tell me more about it for my younger brother." ”

Jiang Tian saw that the other party didn't see a rabbit or an eagle, so he said generously: "Remove these scraps, replace them with good paper and pen, and I'll tell you what the foundation of optics is!" ”

Xinyue is secretly happy, I usually ask for each other and don't see you to solve my doubts, and today I can take the opportunity to dip in the light, so I hurriedly ordered someone to prepare paper and pen, and I also know how to prepare a quill pen.

After some explanation, until the time of the lamp, everyone finally understood why a few glass mirrors can see things in the distance, especially those easy-to-understand sketches on the paper, even if it is a craftsman who can't read big characters, as long as he explains to the picture, he can understand what the clairvoyant mirror is all about. Song Yi was completely convinced, looking at these casually drawn illustrations, compared with the notebook, it was so different, no wonder people were so disdainful, it was not arrogance, but they didn't put themselves in their eyes at all. The pervert was also fascinated by this, Hu Shang has been trafficking in glassware since ancient times, and he also has some family heirloom glass products, but his ancestors made a large amount of glass into daily utensils, but few people can think of such a subtle use. Tian Xuhai was cold in his heart, this person has been recommended to face the king, if such a shocking person is seen by the emperor who is thirsty for talent, isn't it just around the corner? Maybe it won't be long before these children of the family will have to call him respectfully when they see him again.

Jiang Tian, who is addicted, pointed to several typical structures and said: "This is a Galilean telescope, and it is by this mirror that he discovered the key evidence of heliocentrism." And this is a Keplerian telescope, which is characterized by inverted imaging, and the mirror must be reversed to correct the picture, as for this......"

Jiang Tian pointed to the Newtonian telescope and hesitated, now the father of classical physics should still wet the bed, right? Then let's be cheeky and plagiarize: "This is a new mirror that I have pondered based on the principle of reflection of light, but I am too shy to practice." ”

Because of such a lie, the reflecting telescope was called the ginger telescope in the world, and a new chapter in astronomy was opened......

As a result, they chatted until late at night, Song Yi and Xinyue couldn't wait to make the optical knowledge clear and clear in this night, so Liu Baokai made a decision on the spot, even if he used the privileges of the army, he had to support Jiang Tian to get the clairvoyant mirror out, and that night when Song Yi brought the sorted draft to the old man Song and explained it according to the cat and the tiger, it is said that the old man in his sixties didn't sleep all night, so he dragged his grandson to study in the study until dawn, originally Song Yingxing was quite fascinated by natural science, And for optics and acoustics, etc., there are dabbles, but limited by the times and the difficulties of communication, so there is no greater development, meeting Jiang Tian is like a gold digger seeing Baoshan, not excited that it is impossible, as for the other party's humiliation, it is completely ignored, since ancient times, the Taoist first, with the ability of others to call Mr.

There were only two people who were very depressed that night, one Tian Xuhai, and he saw Xinyue's eyes twinkling with stars again, and he was not looking at himself. Another more unexpected is Xi Yun, she is used to preparing porridge and side dishes, ready to let Jiang Tian come back to eat, who would have thought that this time it would not come in handy at all, not to mention, she didn't even wait for Jiang Tian to go home and fell asleep in the yard, and in the end it was the big man who carried himself back to the house! As a result, early the next morning, the little girl didn't dare to meet Jiang Tian. She didn't dare to show her face, but some people didn't care, and when she got up in the morning, Xinyue didn't know if it was the wrong nerve, or she was inspired by something, so she really walked into the teahouse dressed as a woman, and respectfully presented a tael of silver to the shopkeeper Zhao, saying that she wanted to have a good discussion with Comrade Jiang Tian, a non-famous shopkeeper in Beijing! And this time she also has a high-sounding reason, that is, in order to celebrate the queen's birthday, the other party has promised to compose a song!

The old man Song happily agreed to all the conditions, as long as he could make the kind of mirror painted on the drawing, not only the patent belonged to Jiang Tian, but also for each sample, as long as the inspection was qualified, he would pay five hundred taels for hard work! After listening to his son's report, Liu Junding also heroically said that he would promote it in the army for him! If you can catch the army's procurement order, just collecting patent fees can make Jiang Tian rich, and Jiang Tian has studied the newly formulated patent law, I don't know whether it is intentional or negligent, there is no time limit for the patent, theoretically as long as Jiang Tian is alive, this patent will always be valid! So they immediately came to invite Jiang Tian out of the mountain. Just in time for Xinyue to be here, everyone can see that this handsome scholar with red lips and white teeth is the acquaintance on the other side, but it is not easy to debunk here. It's just that I don't know why this girl is entangled with Jiang Tian to compose music again, and then say another tune, can it be more important than the development of clairvoyance? Jiang Tian must go with himself.

In this chaotic environment, only Boss Zhao sat behind the counter with a calm face, as if the noise in front of him had nothing to do with him, in fact, he had already guessed that Jiang Tian would soar sooner or later, but he didn't expect such a dramatic change to appear in front of him. Besides, as long as Jiang Tian stays here for a day, then for him it is like having a God of Wealth, not to mention the audience who is looking forward to the new cross talk every night, just the tea money given by those sons and buddies who come here every day to tutor is not what he could earn before, and now Jiang Tian is finally leaving, it is said that he should feel lost, but he is surprisingly calm in his heart, because what he values is not money, and sees Jiang Tian as a hurried passerby, no matter how many surprises he brings to himself, it is inevitable that everyone will end up. Thinking about it like this, I feel a little lost in my heart, maybe in a few days, this small teahouse will return to its former deserted appearance, only I am still sitting here and watching the unchanged scenery, there is no longer a crepe shopkeeper dangling, and there is no little girl cooking in the backyard, let alone having the opportunity to secretly observe how this man and woman pierce the layer of window paper. The only change is that the slowly dripping filter on the counter accompanies me.

Jiang Tian, who was so annoyed, had to shout loudly: "I can't eat hot tofu in a hurry!" You come one by one, I will definitely compose this song, and the mirror making is not at this moment, and after a while the students will come to class, yesterday has been a day off, and today we must focus on educating people no matter what! ”

His righteous and strict words choked Song Yi half to death, if it weren't for my grandfather's whim, who would have come to you to take classes? Besides, in your class, a few math problems are even dismissed, and you are embarrassed to mention the word "education"? Not to mention that in the time of their dispute, there were really many classmates who walked into the teahouse one after another, and these idlers came to the spirit as soon as they saw Xinyue's dress, and many of them came forward to laugh, who made Xinyue's talent famous, either the talent was not seen at all, or Liu Baokai was stained with the light of Tian Xuhai and Song Yi. Now the pervert is not happy, don't look at the girl who has not agreed to marry Tian Xuhai, but in his heart, this is no different from his younger siblings, which bastard boy dares to tease his future younger sibling so facelessly! The other party is not ambiguous, which royal law did he commit by molesting a kiln sister? Besides, your father is a duke, and my family is still a feudal official, will you turn your face with me for the sake of a prostitute? Seeing that the situation is about to develop in the direction of getting out of control, let alone Jiang Tian, if this gang of gentlemen fights, even the soldiers and horses of the five cities may not be able to control it, even if it is not suppressed by the front foot, the back foot will have to be released. So who's going to make trouble for themselves?

At this time, a person walked into the teahouse with gentle steps, and his voice was not loud but could be heard clearly: "It's really lively, fellow students, are you thinking that the weather is too cold to move?" ”

Everyone followed the prestige, and saw a handsome scholar who was not inferior to Xinyue in disguised as a man, but with a bit of masculinity, smiling at everyone. The two people who were still tense just now suddenly hid to the side obediently like deflated balls. No one noticed that behind him stood a curious child.