Chapter 263 Unpractical sextant
Chapter 263 Unpractical Hexagonal
"Hehe, third brother, don't be afraid. This thing is a machine developed by Dean Zhao, who only needs to add water and carbon to it. This machine can run and then generate huge power. This machine is called a steam engine, and this kind of train is just an application of a steam engine." Li Yan said, introducing Zhao Yifan around him to Li Ke and others. Although Yifan is just a girl, he is the president of Dengzhou Academy of Sciences. In Li Yan's eyes, the other party is more important than the entire Dengzhou City.
The three Li Ke brothers were very surprised after hearing this. They turned their heads to look at the rumbling steam locomotive, and then looked at the petite Yifan. They really couldn't resemble the big guy who was actually from this girl.
Speaking of which, the speed of the train was really slow. I just saw the train rushing out of the woods, but I waited for a while before the rumbling train arrived next to Li Yan and the others. However, the train did not stop, but directly passed them and turned around, and then stopped.
"Third brother, seventh brother, eighth brother, how about we go up and take it together?" Li Yan invited with a smile. The train has been running for many days and has not had any major problems. In addition, the speed is slow, so there should be no danger, so Li Yan wants to take it personally and try it out.
"What are you waiting for? I'll get on first!" Li Zhen was impatient for a long time. When he heard Li Yan's words, he immediately rushed up. Because he knew that Li Yan and the others were going to take, there was no other person on the train today. When Li Yan got on the carriage, he found that the layout of the carriage was very similar to that of the later buses. Rows of wooden stools were fixed in the carriage. Although it looked a bit simple, it could allow more people to sit down.
Li Yan and the other two got into the car first, and each found a seat by the window to sit down. Lu Hong and Zhao Fu and his daughter were with him. Originally, Li Yan wanted to invite Yang Xiao and Caier to come, but considering that Yang Xiao's condition could not be too stimulated, he did not invite him. Although Cai Er was very interested, she knew that her father could not go, so she also stayed in the city to accompany her father.
After everyone sat down, the train finally started slowly with a whistle. Li Yan had been used to riding various motor vehicles in his previous life, so he naturally didn't feel anything. However, Li Ke and Li Zhen felt very novel. As the train slowly accelerated, they even came to ask Li Yan about the working principle of the steam engine. After all, in their opinion, it was amazing that the machine that could run without human power and animal power, and only drink water and eat charcoal!
Although Li Yan didn't know much about machinery, it was enough to fool Li Ke and the others. Therefore, he talked about the working principle of the steam engine and the difficulties he encountered when he asked Yifan to design and build the steam engine. Except for Li Yan and Yifan, even Zhao Fu knew very much about these things. So while everyone was enjoying the scenery outside the car window, he seemed very leisurely to listen to Li Yan talking about the development history of the steam engine.
However, while the train was driving towards the port, Li Yan discovered an extremely interesting phenomenon. For example, when the train was driving forward at full speed, a few people would suddenly run over the concrete avenue parallel to the railway tracks, and soon caught up with the train, grabbed the car door and wanted to get on the bus, but was driven down by the royal palace guard at the door.
Seeing this situation, Li Yan laughed. Yifan had just said that this train usually travels between Dengzhou and the port, and is free for people to ride. It is estimated that these people are just like usual, taking a ride. After all, although the speed of the train is slow, it is at least a little faster than walking, and it can save some effort.
However, when Yifan saw this, his face turned red slightly. As the main designer of the train, the speed of the train is only a little faster than that of a person, let alone a carriage. The only thing that is stronger than a carriage is that as long as the train does not fail and with enough fuel and water, it can run forever.
After taking the train to travel between Dengzhou and the port, Li Yan praised Yifan very much and encouraged him to continue his efforts and strive to increase the speed of the train. In addition, Li Yan immediately approved Yifan's plan to build a steam engine, and also proposed that it could be modified on the basis of the vehicles and ships. First, the vehicles and ships are more suitable for powering by steam engines, and second, the vehicles and ships in Datang are also relatively small, and the modification is relatively simple.
Yifan carefully recorded all the suggestions of Li Yan, and also discussed some details with Li Yan. Although Li Yan could not help in specific ways, he could provide some novel ideas and future development directions of steam engines, which were exactly what Yifan needed.
"My subordinate Wei Gong, please see Your Highness!" In the main hall of the Qi Prince's Mansion in Dengzhou City, Wei Heizi, who was in charge of Dengzhou Ship Design Institute, saluted Li Yan with a respectful look on his face. In addition to the two of them, Zhao Fu is also here, and in the opposite position of Zhao Fu, there were seven or eight young people standing.
"Director Wei doesn't have to be too polite!" Li Yan said with a smile. Since Wei Gong got into the president of the Ship Design Institute, he has become a leading figure in the shipbuilding industry in Dengzhou. No one dares to call Wei Heizi's nickname. Although Li Yan likes to call Wei Gong's name, he still calls his position in front of outsiders.
"Thank you Your Highness!" Wei Gong stood up after hearing this, and at the same time he minified the seven or eight young people next to him, guessing the origin of the other party.
"Director Wei, this time I invite you and Zhao Biejia at the same time. The first thing is to introduce these new colleagues to you." Li Yan said, pointing to the seven or eight young people next to him, "These are all great disciples of the Grand Historian Li Chunfeng. The leader is named Xie Chun, and the name of Hua Guang..."
Li Yan introduced all seven or eight young people. After Li Chunfeng successfully developed the sextant, he sent Xie Chun and other disciples to Li Yan and asked them to follow Li Yan to Dengzhou, mainly to teach the use of the sextant. As for how to teach it, it was Li Yan's problem.
However, when Li Yan came to Dengzhou last time, Xie Chun and others did not stay, but followed him to Taiwan. The reason for this was that they mainly used sextant to measure the latitude and longitude of major ports along the coast and recorded them one by one. Even when Li Yan was in Taiwan, Xie Chun and others continued to go south by boat and continued to measure in Guangzhou area, measuring almost all important seaports. These data were very useful. In the future, when teaching the use of sextant, these data would also be included in the textbooks.
After introducing the person, the two parties greeted each other. At this time, Li Yan continued: "When Mr. Li came to Dengzhou, I asked him to help design an instrument. This instrument is used for maritime positioning. It can be said that as long as you have this instrument, you will almost no longer have to worry about maritime trek!"
"Marine positioning instruments! Your Highness, there is such a powerful weapon in this world?" As soon as Li Yan finished speaking, Zhao Fu and Wei Gong were both surprised. One of them was a shipbuilder and the other was an official at the beach for many years. Naturally, they knew the seriousness of losing their direction at sea, but they did not expect that they could solve the problem of the positioning instruments at sea?
"Haha, don't be surprised, 2 gurus. I heard from the teacher that this sextant was proposed by His Highness, and then the teacher and others worked hard to develop it for more than a year, and it took countless efforts to create it. Moreover, after our test, the sextant has excellent positioning effect. Although there may be certain errors, it is within an acceptable range!" Xie Chun, the leader, said with a gentle smile on his face.
Among Li Chunfeng's disciples, Xie Chun is the oldest, and he is also very talented and has learned the most skills of Li Chunfeng, so he is usually the leader.
"Sextant? What a magical thing!" Wei Heizi immediately lit up when he heard that it was proposed by His Highness King Qi, and he had no doubts in his heart. When he was still in Chang'an, Li Yan asked him to help make two ship models, which were Galen ships and Fu Ship, so he had always admired Li Yan's ability.
"Your Highness has such a magical instrument, can you let the lower officials take a look first?" Zhao Fu also knew that Li Yan knew the truth, but he was very curious about the sextant, wanting to see what is magical about this thing?
"This is easy. You should carry Xie Chun with you. Take it out and let Zhao Biejia see it. By the way, I will teach him how to use it!" Li Yan said with a smile.
"Yes!" When Xie Chun heard this, he immediately took out a palm-sized sextant from his arms, then walked over to Zhao Fu and Wei Gong to take a closer look, and also explained the principles and usage of the sextant.
When Zhao Fu and Wei Gong saw this fan-shaped sextant, they found that the shape was a bit complicated. After hearing the series of professional terms that Xie Chun said, both of them were stunned because they couldn't understand it at all. Among them, Wei Gong was fine. He was originally a craftsman and knew a little about math knowledge, but astronomy and other things were much worse. Zhao Fu was from the imperial examination and was also involved in math knowledge and astronomy, otherwise he would not have given birth to a smart daughter as smart as Yifan. But even so, he could only understand 40% or 50%, which made Zhao Fu's old face a little uneasy.
Seeing Zhao Fu showing shame on his face, Li Yan laughed in his heart. In fact, it was not difficult to use the sextant. Zhao Fu could learn it quickly, but he did not understand some basic concepts, such as the concept of longitude and longitude, etc. If he did not understand these, he naturally could not understand what Xie Chun was talking about.
Chapter completed!