"Not bad!"

The voice of the public loses and the upper creation falls.

Win Changsheng smiled and praised.

"Ben Gongzi, that's just such an idea!"

As he spoke, Win Changsheng changed his words and mentioned the bearing that Gong Lose Shangzao said.

He said.

"Once we've got the bearings, we're going to lay two rails like I just said, and then we're going to make that kind of locomotive on top of that, which only provides traction, you know?"

"Understood, understood!"

Gong Lose said again and again.

Seeing this, Ying Changsheng opened his mouth and said.

"The bearing, when it is made, is also used on the steam engine, and it is also used on the locomotive, and even, it can be used on the carriage!"

"After all, he can reduce resistance!"

As he spoke, Ying Changsheng instructed the craftsmen on the side to take a pen and paper, and then began to build the bearings for the gong and draw the shape of the bearings.

I only saw that on the drawing, Ying Changsheng drew two circles.

Then between the two circles, he drew one small round bead after another, and then said to the male on the side.

"This thing is a bearing!"

"There are two rings inside and outside the bearing, and there is a track inside, which is stuffed with round iron balls, so that when it rotates, the resistance will be greatly reduced!"

"If you put some grease on it, the resistance will be even less!"

"You understand, right?"

"Minister, minister understands, minister understands!"

Looking at the bearing drawings in his hand, Gong's eyes flashed with fine light, and he said excitedly.

He knew that once this bearing was successfully made, it would inevitably increase the efficiency of this steam engine.

But soon, he couldn't help it, frowned and looked at Win Changsheng, then opened his mouth and said to Win Changsheng.

"Nineteen sons, although this bearing is good, it's just, the one you need here, the iron beads, I'm afraid it's not easy to make!"

Well, the bearings are good, and the bearings are able to reduce drag, but the problem is.

The production of bearings is really too difficult.

How difficult is it?

This thing can be said to be the core technology of industry.

Because it's different from the stupid black steam engine.

If he wants to make this bearing, he must master a technique - the technology of making rounded iron balls.

It looks like it's just a steel ball, a few dollars a pound in later generations.

But in the present era.

All this is extremely rare.

Because in the current era.

Iron beads can be described as the core technology.

For Daqin, it is simply difficult to make a batch of suitable and durable iron beads.

And after Ying Changsheng on the side heard this, he couldn't help frowning.

Well.

He thought of it too.

The technical content of the bearings is somewhat high.

Not so easy to make.

I saw that after thinking for a while, Ying Changsheng said to the public in front of him.

"If you use the ball method, can you make it?"

The ball method is actually to pour the made molten iron, and then let him naturally condense into an iron ball in the air.

The size of the simple iron balls made in this way may vary slightly.

However, it also has an advantage, and that is.

Its roundness is still okay!

"This is the only way, but only find a high place to make it, and when making, you must standardize the weight of the dripping molten iron for the first time, so that you can make a standard, consistent size iron ball!"

Hearing this, Gong Yi Shangzao opened his mouth and said.

Immediately, he frowned again.

"Even so, it is quite difficult to make a regular, round iron ball!"

"Don't be afraid of difficulties, make more than a few times, produce more, and you can always pick out a batch of suitable ones from those iron beads!"

Hearing this, Win Changsheng Chaogong lost and said.

The latter nodded heavily.

Just listen to the public loser.

"In that case, Nineteen Princes, let's hurry up and prepare, shall we?"

"Hmm!"

Ying Changsheng nodded in agreement.

And just when winning longevity, and losing to the public, we are trying to find ways to make bearings here.

It is located on the far side of the country of Dawan.

At this moment, Li Xin has successfully searched all the people in Dawan City.

Right now, I only saw that on the open space outside Dawan City, tens of thousands of horses were standing there densely.

The captured horse breeder of the Dawan Kingdom, Li Xin, the general of the Great Qin Dynasty who was trembling, reported the number of horses in the Dawan Kingdom.

"Honorable General Daqin, Dawan up and down, there are more than 50,000 horses in total, right now, these horses are all placed here, the best horses are the five hundred horses on the left, these horses are the king's court horses, they are for the king's exclusive use, but now, all this belongs to Daqin!"

"Hahahaha!"

After hearing the voice of the horse breeder, Li Xin let out a hearty laugh one after another, and then he asked the horse breeder.

"Why are your Dawan horses so good?"

Well, Li Xin has already seen at this moment that the horses of Dawan are much better than those of Daqin.

Even the most ordinary horses are much better than Daqin's horses.

In such a situation, Li Xin was inevitably a little curious, why are Dawan's horses so good, why is it here, obviously not a very rich place, why, such an excellent horse breed will be born?

After hearing Li Xin's question, the horse breeder did not dare to slack off, so he had to explain with a smile.

"The general doesn't know that Dawan's horses are after a long period of breeding, and the best horses are selected from generation to generation, and then used to raise horses!"

"Oh?"

Hearing this, Li Xin nodded.

This way of breeding horses, in fact, Da Qin is doing it, and I only saw Li Xin said.

"In this case, then after this batch of good horses enters my Great Qin, my Great Qin can also obtain countless excellent war horses!"

As he spoke, the horse breeder on the side wanted to speak and stopped.

Seeing this, Li Xin couldn't help but look at him and asked.

"What, what else do you have to say?"

"General of Great Qin, do you know that if this horse is not raised well, it will lead to its degradation ......"

"Oh?"

Hearing this, Li Xin's face sank, indeed, Maxima often exists, but Bole does not often have, and it is not unheard of that good horses have degenerated into bad horses from generation to generation.

Historically, Emperor Wu of the Han Dynasty sent Li Guangli to attack the Great Wan Kingdom.

In the end, Dawan will be conquered.

Horses obtained.

They are all good Dawan good horses.

However, when the time comes.

These excellent Dawan good horses, but they are all degraded, one generation is not as good as the next, and finally disappeared in the smoke and clouds of history.

At this moment, Li Xin looked at the horse breeder, and then asked.

"Could it be that you Dawan's horse breeding, what secret is there?"