Hearing his father's order, Zhen Yan Yin Yan and Xu Yan all stepped forward, quickly adding water and lighting the fire, and it didn't take long for the water in the furnace to boil to produce steam.

As the vapor pressure increases, the gears, which were still stationary, begin to rotate slowly, from slow to fast, until an equilibrium is generated, and then they do not continue to accelerate.

Because the bucket is not large, it is necessary to constantly add water, and the fire below also has to be constantly replenished with firewood, which is a bit troublesome.

But even so, Xu Yan couldn't help laughing.

At this time, everyone had not yet brought out the role of coal, so their eighth sister did not think about it.

It is already very remarkable that such an effect can be achieved in the early stage.

Therefore, Xu Yan clapped her hands with satisfaction: "Congratulations to my father, congratulations to the eighth sister, this steam engine has succeeded." ”

When several important ministers heard Her Royal Highness say this, they also applauded and congratulated: "Congratulations to Your Majesty, congratulations to Lord Yunxiang." ”

Ying Zheng listened happily, his eyes lit up, and he wondered where this thing could be used?

When will I be able to tour the whole world in a year?

Naturally, he also happily replied to everyone: "Rejoice and rejoice." ”

Zhen Yan found several of these problems through the test just now: "It's that the firepower is insufficient, if you really use it, I'm afraid that the firewood will not be enough to burn." ”

"What's so hard about that?"

Yin Yan smiled and said, "Eighth Sister, have you forgotten the role of the coal provided by Ninth Sister?" ”

As soon as these words came out, Zhen Yan's eyes lit up: "Yes, I actually forgot about it." ”

Xuyan: "It's not that you forgot, you didn't remember it for a while." ”

"There is also this container of water, which needs to be enlarged and deepened, and the stove that burns the fire below should also be enlarged proportionally."

Zhen Yan said seriously: "Well, listen to the ninth sister, if you burn charcoal, you have to transform the furnace, otherwise the ashes produced after burning cannot be disposed of." ”

The sisters had a heated discussion and made a comprehensive analysis from all aspects.

Ying Zheng and several important ministers heard these things and knew nothing about them.

Mo Yuan and Gong Tong pricked up their ears and listened with relish, and took out a pen and notebook from their sleeve pockets to record key information.

At the end of the discussion, Xu Yan said to Zhen Yan encouragingly: "Eighth sister, everything is difficult at the beginning, you have started this today, and the follow-up improvement and optimization will be much easier." ”

"Come on, take care of you."

"Yes, Eighth Sister, I didn't expect you to think of using it through the steam produced by boiling water."

Yin Yan also looked at Yan with emotion, "By the way, Sister Jiu, where can this thing be used?" ”

"It can be used on a boat to make the boat faster, it can be used in a car, so that the car can accelerate, and it can even drive a very long, long car, and there can be a lot of people in the car."

Xu Yan replied casually, "It can even be used as a power to make things that fly in the sky." In short, it has many uses. ”

"Wow, that's amazing."

Yin Yan's eyes were not good when she heard it, so she was not excited, "Eighth sister is so powerful." ”

Zhen Yan didn't expect that her research on this thing would have such a big effect.

His face flushed with joy, and he nodded again and again: "Great, I can finally contribute to Daqin." ”

"Eighth sister, you have always been contributing to Daqin."

Xu Yan grabbed the eighth sister's shoulder, not to mention liking her more, "You are the first scientist in our Great Qin." ”

"What is a 'scientist'?"

Ying Zheng listened to the conversation of several girls, and the smile on his face never broke, and suddenly heard a new word, and he quickly answered.

Not only was Zu Long curious about the meaning of the word, but even the rest of the people looked at Her Royal Highness with curious eyes.

Their Highness seemed to know a lot of things, so much that they couldn't imagine.