Yu Ming was asked to investigate and make arrangements regarding matters in the Western Regions.
Wei Nan's investigation will also take ten days and a half.
There is no need to rush anything until the results come back.
Song Yang returned to the research institute and studied new things every day.
There has been no progress on the electricity issue. Chu Zian came here several times to discuss the matter of enameled wires.
Song Yang could only rack his brains to search the contents of the encyclopedia.
Now he just wishes there was no system plug-in, or maybe a search function.
Every time you browse the content, you can only search through the directory. It’s very laborious to find something!
After several discussions and research with Chu Zian.
I can’t say that there is no progress at all. I can only say that there will definitely be no results within a few months.
"Your Majesty, the research and development of generators has come to a standstill again. Do you think there is a problem with our research direction?" Liu Bao came to ask for advice.
"The direction is not wrong, but there is still a technical deficiency. Let's slowly adjust and solve it. There is nothing we can do about it." Song Yang was also helpless.
He wanted to light up the technology tree, but there was a lack of this and that. After several years of starting from scratch, the effect was still unsatisfactory.
"Your Majesty, steam power is actually very good now, and the internal combustion engine is about to succeed. There is no need for us to move towards higher-level electricity now."
The failure of electricity research also made this kid feel a little frustrated.
And he does feel that there is no need to take too big a step.
Song Yang told them that the level of electricity is so high that it can be used for hundreds of years without becoming outdated.
This kind of energy is too unfamiliar to Liu Bao. It is enough to make good use of steam engines and internal combustion engines.
Song Yang smiled and said: "Actually, in terms of power alone, steam and internal combustion engines are indeed enough. And they can be used for many, many years. But I want to develop electric welding so that we can make steel suitable for ocean going
Big ship."
It is Song Yang’s dream to travel across the ocean and explore the earth.
The previous era was just a dream.
It is possible in this era.
"Electric welding? Welding steel?" Liu Bao asked curiously.
"Yes, welding steel. Welding steel into ships so that the steel can sail on the sea." Song Yang explained.
"Steel ship? Won't it sink?" Liu Bao was stunned and asked immediately.
In his impression, steel will sink immediately when put into water. How can you use steel to make a ship?
This is also the unified idea of the ancients. Song Yang has already taught some knowledge of buoyancy in his physics class, but has not yet mentioned the issue of displacement.
Now that Liu Bao asked about it, Song Yang gave Liu Bao a small class and taught him about drainage.
"Displacement...According to this theory, can steel really float?"
After listening to Song Yang's explanation, Liu Bao felt that a new door had opened.
"Of course. And this is easy to verify. You can find out if you find an iron sheet and try to fold a boat yourself. The boat does not need to be welded, just fold it." Song Yang picked up a piece of paper and folded a boat and said to Liu Bao
.
Liu Bao nodded heavily and said that he would try to make an iron boat when he got home today.
Song Yang liked Liu Bao's seriousness very much.
If you are engaged in scientific research or craftsmanship, you will not achieve much without a spirit of research.
Liu Bao had this kind of spirit and was diligent and studious, so Song Yang liked to talk more with him.
Many teachers are the same. Every teacher likes students like Liu Bao.
On my way home in the evening, I passed by Blacksmith Wang's house and asked for some iron plates.
I didn't even eat dinner, so I immediately started studying the iron ship.
I asked my wife to help prepare a basin of water.
Then Liu Baoxian threw the iron plate directly into the water. There was no doubt that it sank.
"Can this thing really float?" Liu Bao muttered, picked up the iron plate, and then bent it a few times with a bending machine.
As the leader of the carpentry class and a general, Liu Bao had a small steam bending machine at home.
This kind of bending machine is a drawing given by Song Yang. It is not difficult to make. It can be made today.
The iron plates were folded to form a hull, and the iron boat was carefully placed on the water.
Liu Bao dragged the iron boat with his hand and released his hand very carefully with an uneasy feeling.
Then I saw what Song Yang said came true.
"It's floating! It's really floating!"
Liu Bao was surprised to find that the iron boat could really float.
This small discovery is too normal for future generations.
But for Liu Bao, a master carpenter, it subverted his perception.
"Your Majesty is right! It turns out that buoyancy is really related to displacement! The greater the displacement, the greater the buoyancy!"
Liu Bao observed carefully for a while, recalled Professor Song Yang's theory, and verified what he had learned.
He picked up the boat and put it down to see how much the hull was sinking. After repeated attempts several times, Liu Bao understood more and more the meaning of buoyancy.
Then he picked up the boat again, changed the angle, and tried it once more with the bow facing down.
Although it sank directly, I also understood the principle of buoyancy of the boat.
It was finally confirmed that the iron boat could really float, and Liu Bao was as happy as a child.
After placing the boat again, Liu Bao gently pushed the boat.
The boat floated forward slowly, but before it reached the other side of the bathtub, it sank...
Liu Bao felt nervous and hurriedly picked up the boat.
After taking a look, it turned out that there was water in the bending part of the bow.
After trying it again, I understood the reason.
The water filled in very slowly when it was parked there, but when the boat started to move, the water filled in much faster, and naturally it sank in a short time.
"This place should be welded." Liu Bao muttered as he looked at the boat.
Then he frowned again and said: "No wonder the prince said he wanted electric welding. If this ship gets bigger, traditional welding methods won't be possible at all!"
At this time Liu Bao also understood Song Yang.
Song Yang wants to build a big steel ship.
Large ships are large and the thickness of steel plates must be very large, making traditional welding processes impossible to use.
Liu Bao thought about welding, and he really needed to use the kind of electric welding Song Yang mentioned.
After picking up the boat, Liu Bao played with it a few more times, but the gap in the connection was getting bigger and bigger, and it was sinking faster and faster.
Liu Bao, who had not had enough fun, took out the boat, wiped off the water, took a hand drill and started drilling there.
After a while, a row of screw holes was drilled, and then Liu Bao looked for screws and planned to screw the iron plates at the bottom of the boat together.
It turned out that the boat was too small and the screws were a bit long.
"hiss……"
Liu Bao thought about it for a while and then he noticed it. He also found rivet pliers and rivets.
Push the rivet through the screw eye backwards and pull it out with rivet pliers.
The hulls were directly joined together, and the excess rivet heads were sawed off to finish.
"You should be able to play for a while now!" Liu Bao looked at the finished boat and smiled with satisfaction.
He just wanted to have fun dealing with the boat for a while, at least it wouldn't sink all at once.
Speaking of this kind of small rivets, Song Yang also provided the drawings for the production in the workshop.
After the boat was ready, Liu Bao played until dark. When he was really hungry, he went to eat at the urging of his wife.