This time, the giant ship raised its sails and took advantage of the west wind to go eastward, away from the coast, until he couldn't see the coastline, Gao Pujun couldn't help but ask suspiciously: "Didn't you say that you want to reach North Suzhou first, why do you have to do this more?" ”

The sun has begun to sink in the west, and there is only half of it left at the sea level, shining red, like a boiled duck egg yolk, Xu Zizhen said: "It's because I want to be fast, so I don't want the people on the shore to see how fast I am." ”

Gao Pujun said: "At the speed of this ship, if it goes straight north, it will take two days, how fast can it be?" Could it be that you can still get there in one day? ”

Xu Zizhen smiled mysteriously: "What if I can really get there in one day?" Why don't we bet on another one? ”

Gao Pujun's cheeks were slightly red, and a pink fist slammed into his head: "Bet on you!" Love to say it or not! ”

Xu Zizhen rubbed his head and grinned, suddenly smiled, and shouted, "Two two." ”

He responded in twos and twos: "Here!" ”

"Change the fire!"

"Yes!"

He Liangliang hurriedly left, Gao Pujun was confused, so he simply carried his skirt and followed, and when he came to the door of the boiler room, he already felt a hot wind blowing in his face, Miss Gao couldn't care so much, and ran down the steps quickly, but he saw He Liangliang directing everyone to move the pile of big wooden barrels along the wall.

Gao Pujun has seen these wooden barrels placed here since he got on the boat, but he never knew what they were or what they were for, and no one said anything when he asked Xu Zizhen.

These barrels were very strong, and those boys from the science and engineering department could only open them with a crowbar and other tools, Gao Pujun took a closer look, and a pungent smell made her cough a few times, but she also suddenly woke up.

"Black Fire Oil?"

He Liangliang explained to Gao Pujun while commanding: "The eldest brother is afraid that there will be a fine work of the golden man on the ship, so he has not said it clearly since he got on the ship, sister-in-law, please forgive me." ”

Gao Pujun was taken aback: "He knows that there are fine works?" ”

"I don't know, maybe there is, maybe not, but the eldest brother said that be careful to sail the ship of ten thousand years, if you have to do something carefully, he can't spread the news if he floats on the sea, but it's okay to sabotage."

After He Liangliang finished speaking, he was busy, Gao Pujun felt a sense of comfort in his heart, the rude and reckless Xu Zizhen in the past was finally gone, and now he was so careful when the sea was surrounded by vast seawater, she couldn't help but think of when they rushed to Taiyuan over the mountains and mountains, Xu Zizhen single-handedly led away the hundred horsemen, and her heart couldn't help but warm when she thought of this.

But now is not the time to reminisce, Gao Pujun collected her emotions and continued to watch, she was full of curiosity about anything she didn't know, especially Xu Zizhen's ancient and strange things, such as the huge steam engine in front of her, she already knew the principle, but still couldn't fully understand the mystery.

He Liangliang's command was fast and calm, Gao Pujun understood now, it turned out that black fire oil was used to replace the refined charcoal in the original furnace, and the whole barrel of black fire oil was poured into the furnace, and the fire suddenly rose violently, and the flames drilled out of the cracks at the bottom of the furnace like bright red tongues.

The heat of the black fire oil burning is much higher than that of the fine charcoal, but there is one point, the smoke is too thick, not only a dense circle of flames comes out of the furnace, but also billowing black smoke, pungent and unpleasant, making people unable to open their eyes.

When the firepower is fierce, the smoke will be big, and if the smoke is small, the firepower will not be enough, which of the two is better? Gao Pujun was secretly thinking in his heart, but he saw two teenagers from the science and engineering department running to the side, where there was a huge wooden rocker arm, and the two teenagers held their hands together and shook clockwise.

This rocker arm obviously requires a lot of force, and the two teenagers are also considered to be the strongest and most rounded among these people, and it is still very difficult to shake it, but it is slow and laborious at first, and gradually it is shaking faster and faster, and Gao Pujun was shocked to find that the black smoke that was already full of black smoke in the boiler room actually went back down the hearth, and she was so shocked that she couldn't stand on the stove, so she rushed over quickly to take a closer look.

Above the hearth was a tin cover, which was hung upside down by a rope, and looked like an incomparably huge funnel, with a hole as thick as a barrel of black oil in the middle, and then a long iron pipe leading straight to the roof and out of the house.

The rocker arm in the hands of the two teenagers did not know what mechanism there was, but they could suck the black smoke into the pipe when they shook it, so that all the black smoke produced by the combustion was quickly discharged, and although there was still that bad smell in the boiler room, the smoke was not visible at all.

Gao Pujun could not stand, turned around and ran out, returned to the deck and went to the outside of the boiler room to take a closer look, only to see a smoke exhaust vent standing on the roof of the boiler room, and a small cover was made on the top to prevent rain from pouring in, and at this time there was a thick black smoke spewing out, dragging a black tail over the moving giant ship.

"How about my wife, isn't your husband and me amazing?"

Xu Zizhen's cheap voice sounded in his ears, and Gao Pujun came back from his shock.

"You made it too? How? ”

Xu Zizhen laughed evilly: "Swim again tonight, and I'll tell you." ”

Gao Pujun suddenly flew into his cheeks, gritted his silver teeth and pinched the soft flesh on Xu Zizhen's waist: "Do you want to say it?" ”

"Oops, let go, I say I say!" The waist is Xu Zizhen's soft gear, what he is afraid of is being pinched, he can only be soft in desperation, "I made an exhaust fan on the roof, in fact, it is quite simple, just a few wide bamboo pieces, someone at the bottom shakes the rocker arm, and the bamboo pieces rotate in circles, oh, just like the propeller at the stern of our boat, the principle is actually the same." ”

Gao Pujun was already smart, and at this time, Xu Zizhen suddenly understood, she was about to ask again, but suddenly felt a shock under her feet, and then saw that the hull of the ship suddenly accelerated, and it was getting faster and faster, the white waves rolled overboard, and such a huge ship actually sailed out of the feeling of a fierce horse galloping, Gao Pujun was stunned again.

Xu Zizhen quietly broke free from Gao Pujun's "claws", slipped to the side and shouted: "Two two!" ”

"Big brother." He ran over with his hands wiped his hands.

"Are you ready?"

"Alright."

"Not bad, not bad." Xu Zizhen found Lao Peng again, and said with a smile, "How about Lao Peng, do you dare to let you and your brothers fight a few thousand golden dogs?" ”

Lao Peng was dumbfounded: "Thousands? ”

Xu Zizhen said: "Yes, there may be tens of thousands." ”

Lao Peng was stunned for a long time, and slapped his thigh violently: "Dare, I dare to die!" After speaking, he said suspiciously, "Just me and my brothers?" ”

"No, no, no." Xu Zizhen shook his finger and said with a smile, "And your four ships and sixteen artillery pieces." ”