Before Zhao Hao went to Nanhai, he had discussed the development of steam engines with Gongshu Cheng.
Later, Gong Shucheng devoted himself to the research of steam engines.
The research on the Mini rifle was handed over to other core members of the Public Loser.
It was not until Zhao Hao returned from the South China Sea that Gong Shucheng produced the first generation steam engine.
Unfortunately, Zhao Hao was trapped in Ganquan Palace. He had been unable to get in touch with Zhao Hao and could only immerse himself in research.
Mo Xuan, by studying the first-generation steam engine produced by Gongsu Cheng, changed the idea of relying on internal contraction of steam to obtain work. Based on the idea of external expansion of work, after several experiments, it was finally determined that external expansion of work is more powerful than internal contraction of work. powerful.
However, the sealing problems and condensation problems of the first-generation steam engines have not been solved, resulting in frequent tank explosions.
Later, Mo Xuan separated the condensation cylinder and the power cylinder and connected them together using a conversion device, barely solving the condensation problem.
The issue of sealability remains unresolved.
Based on the "Tiangong Kaiwu" left by Zhao Hao and repeated research on the first-generation steam engine made by Gongshu Cheng, she found that Gongshu Cheng had made some copper sheets and used them for sealing openings, so she suddenly thought of spraying them around the copper sheets. Apply some resin oil to seal out the air.
Unexpectedly, this effect is unexpectedly good.
Although it increases the condensation burden, it can at least ensure the sealing inside the cylinder within a short period of time.
After several experiments, she added animal oil and tung oil to the resin oil, and finally refined the mixed oil, which greatly extended the service life of the steam engine.
The steam engine that appeared in front of Zhao Hao now was the product of many experiments.
But Mo Xuandao said: "Although the mixed oil has extended the service life of the steam engine to about two hours, rubber mats are still needed to continue and stably perform work."
"Everyone knows that rubber mats are needed, but the problem is that there are none!"
When Gongshu Cheng heard this, he immediately stood up and said angrily: "Based on the rubber properties proposed by the King, we have tested many materials and have not seen any results!"
"Well, it's not your fault."
Zhao Hao nodded and said: "As far as I know, there are indeed no rubber trees in Daqin, so if you want rubber, you have to transport it back from overseas."
As he spoke, he suddenly changed the subject, looked around at the crowd and said, "Although the current results are far from what I expected, at least there has been considerable progress. I will report it to the court to reward you."
"Wait!"
Before Zhao Hao could finish his words, Mo Xuan interrupted him, picked up the clay pot in his hand and said, "Your Majesty, Mo Xuan still has something to say!"
"Um?"
Zhao Hao's face was full of doubts and he couldn't help but said: "What does Senior Sister Mo Xuan have to say?"
"Your Majesty just now said that there are no rubber trees in Da Qin, but Mo Xuan disagrees!"
"ah?"
Zhao Hao looked confused and became even more confused.
But Mo Xuan didn't say anything, just put the pottery pot in his hand with the mouth of the pot facing down.
Soon, a thick white liquid flowed out of the mouth of the jar, and long threads were pulled out.
"This is."
Zhao Hao looked at the white liquid left at the mouth of the jar in surprise, and exclaimed: "Where did you get the rubber?"
That's right!
This was indeed the rubber tree sap he had in mind.
However, the origin of rubber trees is in South America, and there are no rubber trees in Asia. Even the South China Sea, where rubber trees first appeared, was introduced in modern times.
But what about the rubber tree sap in Mo Xuan's hand?
Seeing that Zhao Hao was surprised by the rubber juice in his hand, Mo Xuan raised a slightly proud smile on his lips and said: "The king misunderstood, this is not the juice of the rubber tree, but the rubber juice boiled from the bark and leaves of the Eucommia tree !”
"Ucommia tree?"
Zhao Hao was stunned and couldn't help turning his head to look at Gong Shucheng.
Gongshu Cheng frowned slightly and asked Mo Xuan for advice: "May I ask Miss Mo Xuan, how can the bark and leaves of the Eucommia tree be boiled to produce rubber juice?"
Mo Xuan explained with a smile: "Dean Gongshu wanted to ask Mo Xuan how to boil the rubber juice, but Mo Xuan couldn't give a specific answer yet. When he was a child in Zhongnan Mountain, he followed his master to the Qinling Mountains to collect medicine and found the leaves of the Eucommia ulmoides tree. When the branches and bark are broken, silvery threads will pull out, just like river lotus roots;
Then I suddenly had the idea to use the bark and leaves of the Eucommia tree to boil rubber sap. Unexpectedly, I succeeded! "
"this"
When everyone heard this, they couldn't help but look at each other.
Zhao Hao secretly admired him. What is a genius? This is a genius!
Sure enough, science is discovered by accident.
"Senior Sister Mo Xuan is amazing!"
Zhao Hao gave a heartfelt thumbs up and praised Mo Xuan: "In the future, the steam engine project will be jointly developed by the East and West Institutes. The public transportation company will be the chief engineer, and Mo Xuan will be the technical person in charge. The treatment will be the same as that of a concubine!" "
"Long live the king!"
After hearing Zhao Hao's words, the researchers from the Western Institute suddenly cheered.
The researchers from the East Campus also clapped happily.
Although they had some misunderstandings about Xiyuan before, as Mo Xuan solved the rubber mat issue, they also realized Xiyuan's ability. They did not steal their technology at all, but mastered the core technology.
Seeing that everyone was very happy, Gong Shucheng also smiled and guided Zhao Hao to the east courtyard.
Because during Zhao Hao's absence in Xianyang, they were not only researching the steam engine project, but also ocean-going ships.
When Zhao Hao came to a testing site on the west side of the east courtyard and looked at a large ship with a very different style from Da Qin's existing building ships, his eyes couldn't help but brighten.
"Is this a sailboat?"
Zhao Hao recognized the type of this large ship at a glance.
Although the land of China had already built ships in the Shang Dynasty, after hundreds of years of development, the Qin Dynasty had been able to build large ships that sailed on the sea.
But not suitable for ocean going at all.
It can only be sailed by wind under certain conditions.
However, most of the time, sailing on the sea still relies on ocean currents and human power.
The use of a sailboat can sometimes save a lot of manpower, but if used improperly, it can easily cause the boat to capsize.
"Last time, the king said that the rubber was far away overseas. Wei Chen could not build a perfect steam engine, so he thought of building a large ocean-going ship to retrieve the rubber as soon as possible."
After saying that, Gong Sucheng glanced at Mo Xuan with a complicated expression, and said with some self-deprecation: "I didn't expect that I still went astray. It's not as well-informed as Miss Mo Xuan."
"Dean Gongshu, you don't have to say that. Mo Xuan is just trying to make a fool of himself. I don't know if Eucommia rubber can replace real rubber!" Mo Xuan smiled sheepishly.
"Senior Sister Mo Xuan is right."
Zhao Hao nodded, then raised his hand to signal Gong Shucheng: "Let's talk about this sailboat first!"
"promise."
Gongshu promised and continued: "The research on gunpowder weapons in the East Institute has not fallen behind. And several studies based on gunpowder weapons, including aircraft, are also being carried out simultaneously."
"Your Majesty, please take a look."
As he spoke, Gong Shucheng raised the sails on the model ship.
I saw that the length of the sail was longer than the mast. With a little bit of wind, it swelled into an arc.
"After experiments, we found that if the sail is arc-shaped, when the airflow passes through the sail, due to the different distances in front of the sail and behind the sail, the wind speeds on both sides are also different, just like the wings of an aircraft facing the wind, an upward buoyancy will be generated. , acts on the ship, driving the ship forward."
Gongshu Cheng said while demonstrating to Zhao Hao.
Zhao Hao did not expect that in just over two years, the Academy of Sciences would have grown to this extent.
He actually even understood the principles of aerodynamics.
Their model sailboat has a total of seven sails.
Each sail is oriented differently and has different functions.
With reasonable operation, it can even sail against the wind.
Through the cooperation of each sail, the direction and speed of sailing can be controlled, and the danger of capsizing is difficult to occur.
These top craftsmen of Great Qin not only integrated the craftsman knowledge of this era, but also digested and absorbed the scientific knowledge of later generations, gradually becoming what Zhao Hao wanted.
It seems that the prospects for conquering the world are bright!
While Zhao Hao was sighing with emotion, Mo Ku on the side suddenly asked: "Now that Junior Sister Mo Xuan has solved the problem of rubber mats, can this steam engine be used on large ships to drive large ships to sail?"
"this"
Everyone was stunned and couldn't help but look at Mo Ku.
Mo Ku's expression was stunned: "What, what's wrong?"
"Senior brother," Mo Xuan opened his mouth slightly, but stopped talking.
Zhao Hao raised his head and laughed; "Hahaha! The steamship project has been finalized!"
After saying that, he turned to look at Mo Xuan: "Can you miniaturize the steam engine you made?"
Mo Xuan thought for a while and said: "I have calculated before. If that test machine is used as the power to drag a thousand kilogram load, it can last for a quarter of an hour. If it is miniaturized, the sustain time may be longer."
"good!"
Zhao Hao clapped his hands and said excitedly: "Then try to make it as small as possible, enough to put it on a big ship and drive the big ship to sail!"
"promise."
Mo Xuan agreed and held Zhao Hao's arm tightly happily.
Zhao Hao's heart skipped a beat and he almost forgot what happened in the pine forest just now. He couldn't help but secretly cried out to his father, "Father, in order to help you conquer the world, my son had to sacrifice his appearance."
the other side.
Liu Bang and his party, who had been drifting on the sea for several months, finally saw the mountains still in the mist.
"Liu San'er, Liu San'er, come out and see if that's Java!"
Standing at the bow of the ship, a strong man with an unshaven beard excitedly rushed into the cabin and pulled a similarly unshaven strong man up from the hammock.
"What a Java country, we were all deceived by that kid"
"Oh! No matter what, go and take a look, the brothers are waiting for you!"
As soon as he heard the word 'brothers', the strong man lying in the hammock suddenly realized that he still had a group of people in his hands, and he couldn't let them all die at sea. He quickly got up from the hammock and rushed out of the cabin.
He took out the telescope on his waist, pushed aside the dreadlocks from his forehead, and looked at the mountains in the distance. After looking at it for a long time, he took out a map and compared it: "That should be Mount Dahui in Java."
"Dahui Mountain? Then we have really arrived in Java?"
"Well, here we are!"
"Hahaha, we are in Java!"
Everyone on the boat cheered.
They were none other than Liu Bang and others.
But I heard Liu Bang curse and say: "Damn it! I thought the young master was lying to us, but I didn't expect it to be true. But we have reached land. If we float for a few more days, I will vomit!"
"Who says it's not the case? We have finally arrived in Java. Let's go ashore directly!"
Xia Houying on the side agreed with a smile.
Fan Kuai shouted: "Get to the shore quickly! Get to the shore quickly!"
In fact, the Kingdom of Java did not exist at this time. It was the name compiled by Zhao Hao based on later history. The real Kingdom of Java did not appear until the period of Emperor Filial Piety in the Eastern Han Dynasty.
In other words, Liu Bang and others were more than two hundred years ahead of schedule in Java.
A group of indigenous people still live here, and no real country has been formed.
In front of a group of natives who had never seen such a large ship, Liu Bang and others slowly got off the ship holding Da Qin's most advanced weapons.
"What are these people looking at? Their eyes are so weird?"
As soon as he got off the boat, Fan Kuai felt a different atmosphere.
Liu Bang was also a little confused. Didn't he say there was a country here? Why are the people of this country so enthusiastic? They had just docked on the shore, and the people gathered around and pointed at them.
And why are they dressed in animal skins, like savages?
The next moment when Liu Bang and others looked puzzled and at a loss, a group of guards pushed aside the crowd. The leader was a messenger who was very gorgeously dressed, with all kinds of gold and silver jewelry hanging on his body. He looked like an envoy from a nouveau riche.
"Distinguished envoy of Great Qin, I am here to greet you on the orders of the clan leader."
The 'upstart' bowed slightly, with a smile on his face and wrinkles on his face.
Judging from his accent and appearance, he seems to be from the Central Plains.
It's just that this outfit is really eye-catching.
Liu Bang frowned and said in a deep voice: "Is this the country of Java?"
"Java?"
The envoy was stunned for a moment, and said with a sneer: "Dear guest from the Qin Dynasty, I am a merchant from Chu State who was shipwrecked and lived here. There is no country here, only dozens of tribes, large and small. The tribe I am currently in is the entire island. The largest tribe is called Nichinan. I am here to invite you specifically on the orders of the Nichinan clan leader."
"Hinami?"
Liu Bang frowned deeper.
Zhou Bo on the side said thoughtfully: "Maybe Mr. Hao has never been to Java and doesn't know the situation here."
"Well, it's possible."
Xia Houying nodded in agreement: "The location marked on the map is just a general direction."
"Oh, what are you afraid of, a group of natives? Let's go and see!"
Fan Kuai was in a very bad state during the time he was on the ship. He vomited so much that he was almost invisible. Now that he finally landed on an island, he naturally didn't want to go back to the ship again, so he cursed and encouraged Liu Bang and others to go to this so-called southern part of Japan. .
Liu Bang and others looked at each other and felt that Fan Kuai was right. He and others had a bunch of Qin's most advanced weapons in their hands, so there was no reason to be afraid of a group of natives.
After thinking about it, Liu Bang and others led a group of people through a field of green banana trees to a shady thatched shed.
"Your envoys, please wait here for a moment. I will inform the clan leader right away."
"Go ahead."
Liu Bang calmly and calmly raised his hand to signal, and at the same time glanced at Fan Kuai and others.
Although they didn't know if there was a Java country here, since this was the place marked by Zhao Hao, they naturally wouldn't miss it.
Soon, several Japanese women wearing animal skins and grass came to Liu Bang and others carrying several wooden basins.
Liu Bang and others looked at the strange food in the wooden basin and suddenly lost their appetite. However, due to their appearance, they had to pretend to have seen the world and look calm.
After several Japanese women exited the hut, Fan Kuai tugged at Liu Bang's sleeves, looked at the red things in the tub, and asked in a low voice: "What is that?"
"Seems to be"
Liu Bang took a closer look, then took out the navigation manual given to him by Zhao Hao, frowned and said: "Lianwu, also known as Java grape!"
"Is it tasty?"
"Won't you know if you try it?"
“What if it’s poisonous?”
"snort!"
Liu Bang snorted coldly and said: "If it is poisonous, I will destroy this island!"
"Hahaha, Liu San'er is becoming more and more kingly!"
Fan Kuai raised his head and laughed. He immediately picked up a piece of lotus mist and put it in his mouth. It felt sour and sweet, and tasted good.
Liu Bang was startled and thought to himself, you really dare to eat it! ? (End of chapter)
