Qi Niang hummed a little song to pack up her dowry, the most important of which was a few large boxes, she is now putting some bags filled with lime in the boxes, because Li Chengdao said that the sea is humid, and many things will be damp and moldy, these limes are used to prevent moisture, and the books that Li Chengdao transported to the ship before were also preserved in this way.

"Qi Niang, are these all the ships you designed?" At this moment, Li Chengdao, who was helping next to him, flipped through the paper in the box, and said with a shocked expression on his face, although he knew that Qi Niang was good at designing ships, but he didn't expect that a few large boxes were filled with drawings of various ship types, how much time and energy would it take?

"Yes, but don't look at these drawings, in fact, there are not a few ships, because the drawings of a ship alone need to be drawn a lot, these are just the more successful ship types I designed, and there are some ideas that I think are more feasible, these are very important, and when I arrive in the Americas, I can guide the craftsmen to build the ships on the drawings." Qi Niang replied with a smile at this time, for her, the most important thing to marry is these drawings, after all, this is her years of hard work and results.

"Then put these boxes in the cabin where we live, so that they don't get damaged with other things!" Li Chengdao nodded solemnly when he heard this, these may be Qi Niang's hard work, so naturally there can be no mistakes.

"That's what I thought too." Regarding Li Chengdao's words, Qi Niang also nodded and smiled, she really didn't worry about putting such an important thing elsewhere.

"Huh? What is this? But at this moment, Li Chengdao suddenly found a special small box in a box, and even had a lock on it, which seemed to be very mysterious.

"I didn't expect to bring this too." Qi Niang was stunned for a moment when she saw this small box, and then she couldn't help but show a look of recollection.

"What the hell is in here?" Seeing Qi Niang's appearance, Li Chengdao couldn't help but ask more curiously.

"See for yourself!" Qi Niang smiled again at the moment, and after speaking, she came to her dresser, and then took out a key from the drawer below to open the box.

To Li Chengdao's surprise, there were still drawings in the box, and when he opened the drawings, it turned out that these drawings were not shipbuilding drawings, but a very complex instrument.

"Take a test, see how much you still remember what your eldest brother taught you at the beginning, and can you understand what this thing is for?" At this moment, I saw Qi Niang smile again.

"Test me? I haven't wasted what Mr. taught me over the years, but I have also applied some of the things I have learned to practice, which looks like you and Mr. designed together, and I believe I will be able to understand it! Li Chengdao was not convinced when he heard Qi Niang's words, although he admitted that he was indeed inferior to Qi Niang in learning, but he was not even unable to understand it.

"Hehe, don't talk big, you understand it!" Qi Niang smiled mischievously, seeing Li Chengdao's unconvinced expression, she couldn't help but recall that when they studied together, Li Chengdao was also unconvinced by her at first, but she lost miserably in many competitions, but Li Chengdao is still a person who does not admit defeat, and after losing, he redoubled his efforts, but in the end he didn't win until he left.

Li Chengdao didn't want to even understand what his wife was drawing, so he sat down and concentrated on studying this drawing, and he soon found that this instrument was indeed very complicated, and he even had a dazzling feeling at a glance, and he didn't know where to start, but he soon found that there were some notes written by Li Xiu, and as a result, he slowly understood the function of this instrument.

To put it simply, this device can actually be divided into two parts, the first part is very simple, it is a large boiler that can burn water into steam, which he learned in Li Xiu's physics class, but the second part is more complicated, it looks like using the power of these steam to push a huge metal wheel to turn, but it is not very similar, for a while he can't figure out what this thing is for?

"Do you see?" Qi Niang saw Li Chengdao's brows tightly locked at this time, and she also put down the work in her hand at the moment, and deliberately sat next to him and asked.

"This ......" Li Chengdao hesitated at this time, in fact, he did not understand a little, but he was embarrassed to admit it, so he could only force it, "This device seems to boil water, I remember that Mr. said that the volume of water increases after turning into steam, and this instrument uses this principle to promote the rotation of the instrument, but what I don't understand now is that even if this instrument rotates, what is the use?" ”

"That's right, the principle of this steam engine is indeed like this, as for its usefulness, it can be loaded on a ship, and then drive a special wheel to rotate, just like a car and a ship, except that the power of the car and ship is people or oxen and horses, but the steam engine can replace people and cows and horses." Qi Niang smiled and explained that she had also designed the car and boat, but the car and ship were limited by power, too big and needed too many people or cattle and horses, too small and of little practical value, so the development of the car and ship was also greatly restricted.

"On board?" Li Chengdao's eyes lit up when he heard this, but then he asked with some doubts, "But can the strength of this thing be greater than that of cattle and horses, how big a boat can it drive, and what is the speed?" ”

"I don't know about these, because this steam engine was not built at all, it was the eldest brother who wanted me to have a hope, so he used this steam engine to calm my heart, but according to the eldest brother, if this steam engine can really be built, it will definitely cause a huge change, not only can be installed on a ship, but also can be installed on a car, used for weaving, pumping, etc., and its power is far from being comparable to cattle and horses." Qi Niang spoke again.

Hearing Qi Niang's previous words, Li Chengdao also knew what she meant by "hope", and he couldn't help showing a look of regret at the moment, and hugged Qi Niang tightly in his arms, but at the same time, he was also a little lucky, although they had gone through many twists and turns, the two of them finally came together.

I don't know how long it took, but I saw Li Chengdao speak again at this time: "Qi Niang, then can we build this steam engine, when our ship is equipped with it, it should be able to run faster, so that if you miss Mr. in the future, it will be convenient to come back to visit." ”

"I'm afraid it's hard." Qi Niang also shook her head at this time and said, because Li Xiu said that the steam engine has extremely high requirements for craftsmanship, even if it is the top craftsmen in Datang, they may not be able to build it, let alone that they are going to the Americas, I am afraid that the craftsmen in the Americas are far inferior to the craftsmen in Datang.

"It doesn't matter, we can build it slowly, anyway, we have time, even if our generation can't do it, we can give it to our sons and daughters, there will always be someone who can make it!" Li Chengdao was not discouraged, he had never had any doubts about Li Xiu's words, and this steam engine was so important, it was naturally worth investing a lot of time and energy.

"Go! Who will have sons and daughters with you? After all, Qi Niang is newly married, and when she heard Li Chengdao's words mention her future children, her face turned red with shame at the moment, and at the same time, she pushed Li Chengdao with some disgust.

"Hehe, we're all married, how can there be any reason not to have children?" Li Chengdao's face is much thicker, and he smiled very proudly at the moment, speaking of which, his younger brothers have all married, and some even have children, sometimes looking at his nieces and nephews, he is also very envious, and now he can finally have a few children by himself.

"That's right, not only to give birth, but also to have a few more, after all, the Americas are the most lacking people!" As soon as Li Chengdao's words fell, he only heard a loud laugh outside, and then he saw the bearded guest walking in and saying loudly while laughing.

"Yikes!" Qi Niang didn't expect that the private words between herself and Li Chengdao would be heard by the bearded guest, and her face was flushed with shame at the moment, and she turned around and was about to run to the inner room, but the bearded guest stopped her at this time and said: "Qi Niang, don't be in a hurry to be shy, I still have something to ask you!" ”