"Okay."

Ye Lie nodded.

He knew what Ye Yu meant.

After all, I also use black tigers to do research and other things.

It didn't take long for the group to arrive at the other half of the guard's department.

A research department where top warlocks and craftsmen gather.

"Your Highness, the power to boil water is never enough,"

A craftsman and a warlock stepped forward to report before Ye Yu could enter.

"Boil water?"

Ye Lie's face was full of questions.

"I'll take a look."

Ye Yu said and took Ye Lie, Ye Xiong and Gongsun Ling'er to their testing ground.

A huge kettle with a gear on it, and something that is linked.

There was a lot of charcoal underneath the kettle, which made the room very hot.

However, in the spring, there will be a cold spring, and it is really comfortable.

Seeing that the gears on it rotate very slowly, the various gears linked are moving slower than the other, even if the size gear with labor-saving effect changes the speed, it is still very slow.

"The first step is to seal the water boiling area underneath, just like the stove."

Ye Yu immediately entered the state and said, "Second, don't have too much water, and the part responsible for condensation and conduit on it is also done to ensure that the water will not be lost." Try again like this. ”

With that, the warlock and the craftsman stopped the thing and immediately began to refit it.

At this time, Ye Yu turned his head and chatted with Ye Lie and Ye Xiong.

"See this, right? This is called steam power. ”

Ye Yu explained, "The power generated by boiling water is used to transmit. ”

"Won't this be fried?"

Ye Lie frowned slightly.

"There's cooling, cooling from above, heating from below to generate power constantly."

Ye Yu explained, "If this thing is okay, then the chariot I told you about before should be a bit eyebrow-raising." ”

"Steam-powered ......"

Ye Lie was thoughtful.

While thinking, he glanced around, the things that Ye Yu used to study were indeed much better than his own.

"That's right!"

Ye Yu suddenly thought of something and drew it on the paper on the side.

Soon handed over to the craftsman.

"As long as the gears are responsible for transmission, they have to use this structure."

Ye Yu said and took out the paper.

In the middle of the upper gear, there are balls to reduce friction and speed up rotation.

"Yes! I immediately let people do it! ”

There is basically no problem in making this kind of gear with balls.

On the other hand, the Warlock is testing new explosive materials, so the room is filled with all kinds of steel to ensure that the room is not blown up.

Ye Yu took them in, which can be regarded as taking Ye Lie to visit the research department officially.

Ye Lie noticed that in this room, even if it was covered in steel, there were still a lot of impacts and small cracks.

"See Your Highness, the fragmentation grenade is almost there, but it still needs to use ignition to delay the time, if it is a touch explosion, I'm afraid it's not safe."

A warlock stepped forward and spoke.

"Well, just continue, and now show Ye Lie the model that has been researched."

Ye Yu nodded, speaking very easily.

"Huh? Belch...... Good! ”

The warlock was stunned at first, then immediately took out a bomb with a thread and spoke to his colleague, "The simulation test is about to begin, all prepare for protection, put the pork!" ”

As he spoke, a large piece of pork was placed in the middle.

The warlocks hid behind the steel plates.

"Your Highness, let's light a fire, about six explosions."

The warlock reminded and handed over the bomb and fire fold to Ye Yu.

"Okay."

Ye Yu said as he lit the fuse and threw it forward.

Counting to five, he only heard the sound of "boom", the grenade exploded, even if he was hiding behind the steel plate, Ye Lie saw the cold above his head!

Looking up, a large number of fragments were either stuck in the steel plate or fell to the ground.

Some are plugged directly into the ceiling!

He was shocked in his heart, if he had this kind of weapon, he could destroy the enemy in pieces in medium and close combat!

If Ye Yu had researched it in advance, he was afraid that even if there were millions of troops at that time, he would have to be buried with him!

"Test complete, inspect pork!"

The warlock confirmed that the bomb had been exploded, then left cover and made his way to the middle.

A lot of wounds on pork that are visible to the naked eye.

And the whole pork has become two sections.

Ye Lie knew what this meant.

"Then what are you going to do with this pork?"

Ye Lie asked.

"These pork are ingredients in tonight's recipe."

"You can eat it after you wash it."

The warlock said and smiled.

"Save, these pork are the Warlock's dinner, take it to the test first, then wash it and let the kitchen make it."

Ye Yu explained, "And here, come with me." ”

As he spoke, he took Ye Lie to another room.

"What is this?"

Ye Lie looked at the huge pool in this room, which contained all kinds of small boats.

"It's shipbuilding."

Ye Yu explained, "I need to determine what materials to use to build the ship. ”

"Shipbuilding?"

"You only have one port, and you want to build a ship?"

Ye Lie said and smiled.

As far as he knew, the Southern Dynasty originally had no port, even if he knew that Ye Yu was expanding in the capital and found a port, then Ye Yu would only have one port!

"Of course, how else can you get out?"

"In the future, we have to go to sea."

Ye Yu explained.

But I saw a craftsman put the freshly made boat into the water to see the situation.

The boat floated slightly on the water for a while, but it didn't take long for it to sink slowly.

"Failed again, what's missing?"

One craftsman spoke, turning to the other and speaking slowly.

"Not necessarily, if I put rubber, it should be able to block the water."

"But if you want to make the bottom of the boat uneven, there will be problems......"

Listening to the discussion of the craftsmen, Ye Lie took another look at the boat that sank to the bottom of the water - made of iron!

"How is it possible for an iron ship to be launched?"

Ye Lie said and smiled, "Even if there is iron on the outside, there should always be some wood!" ”

"It's true that you need to put wood, but it's all iron outside."

Ye Yu said and smiled slightly, "Take your time, first determine the model, and then make it bigger according to the scale." ”

At this time, Ye Lie remembered the ironclad ship mentioned in Ye Yu's previous blueprint.

But...... Is this really possible?

Although he had doubts in his heart, he chose to believe Ye Yu.

"See Your Highness!"

These craftsmen discussed for a long time and were too engrossed, only then did they find that Ye Yu was here.

"It's okay, you continue, you do this first, take your time, and make adjustments slowly."

Ye Yu said, "I'll help you when it's really urgent." ”

Saying that, Ye Yu took Ye Lie and they walked out of the research department.

Walking out of the door, everyone breathed fresh air in the secret guard yamen, and they were much more relaxed.

"That's playing."

"Everything can be discovered in the form of play."

Ye Yu explained, "That's the meaning of research. ”

"But you know it yourself, so why don't you just tell them?"

Ye Lie was puzzled.

"That's what you know, not why."