Clint and Rocky showed a look of disappointment on their faces.

Glace was not disappointed at all.

The improvement process is to discover and solve problems. This is a long process and requires sufficient patience.

Otherwise, when there is a problem with the product, the losses caused will increase by hundreds or thousands of times.

"This is not the first time this question has happened, right?" Martin asked.

He actually didn't have many surprises about the situation in front of him.

The tracks of this model are laid in the room, and the curvature of the tracks is very exaggerated and a lot of slopes are designed.

In some places, it even exceeds 30 degrees, which is a big test for steam locomotives.

When Martin saw the speed of the steam locomotive, he knew that there would be problems.

Gress nodded: "The root cause of the problem of rollover lies in centrifugal force. I thought of some solutions, but they are not very useful."

"If you have to use a high-power locomotive to drive it, this problem is difficult to avoid."

The rail + train model was actually set by Martin.

Of course he knew that this model should be the optimal solution to exert the capabilities of the steam engine.

After all, after hundreds of years of testing in later generations, the high-speed rail was still in use later.

There are naturally very mature solutions to the centrifugal force problem during cornering.

Martin looked at Gress and sorted out the derailed train model, looked at the two siblings, and then said slowly:

"It's time to apply knowledge to solve the problem. The train turns and turns, and the problem lies in the centrifugal force. How should we solve it?"

Tiya, who was beside her, also showed a thoughtful look.

When Gries heard Martin's tone, he knew that there was a perfect solution to this matter, so he relaxed.

But he did not point it out, and looked at the two siblings who were thinking.

"The centrifugal force is equal to the mass multiplied by the square of the velocity, divided by the radius... I got it! Increase the radius of the turn, reduce the speed and load of the train! Especially the speed, it is square!"

Rocky, who was standing beside him, held his forehead: "Sister, the purpose of the teacher designing the train is to transport goods, so it is feasible to only increase the turning radius. The speed of the train cannot be too slow, and the load capacity must be found to be increased."

Martin gave Rocky a thumbs up, then patted Clin on the head with the teaching materials in his hand.

"That's right, that's why I emphasize practical application. Solving practical problems is not about doing the problem. Clin, do you know?"

Clin touched the painful head of the knock, and nodded weakly.

"So, besides increasing the turning radius, have you thought of any good idea?" Martin asked Rocky again.

Rocky frowned and thought for a moment, and finally shook his head with his lips pursed.

Clin was unwilling to accept it and made a face at his younger brother.

Rocky ignored her at all, and continued to think with a frown.

But Kryn glanced out the window and saw several horses moving in the horse field in the distance.

Then, her eyes returned to her eyes, and her big brown eyes looked at the track model, as if she had thought of something, staring at her eyes and looking like Martin, asking excitedly:

"Teacher, can you let the train go through a corner?"

Gress, who was packing the train model, heard this proposal and thought Clin was going to be scolded again, but unexpectedly, Martin smiled and praised Clin with no hesitation.

"Very good! Very good! Did you think of it based on the horse's running?"

Clinn nodded happily: "Yes, let the horse turn when it runs fast, and it will tilt its body."

Gress looked at the rail model, suddenly opened her eyes widened and said quickly: "Use tilt to achieve the stress balance of the car, and the angle of tilt can be calculated based on speed and radius!"

【Get experience value: 4 points】

Martin looked at the prompt floating by the corner of his eyes and knew that all four students understood.

After Gress figured out the principle, she quickly took out a piece of paper and wrote and painted it on it.

Then, according to the above values, lower your head and improve the track.

Within a few minutes, the train model started again, and the train did not overturn again this time.

"There is no big problem with steam locomotives. The important thing now is route planning."

"This work is not something that ordinary people can do. Farrell hasn't returned to Faraline for several days."

"If they follow their current progress, it will take about half a month to determine this route."

During supper, Gress reported to Martin.

Although Martin discovered the mine site, the area near Faralin is still an area from hills to plains, so the road construction is not just a straight line to pass through.

In this era without excavators and relying entirely on labor, even if the object of opening up the mountain and filling is a small slope, the project volume is astronomical.

Therefore, route planning also contains many tricks.

Last week, Martin also specially made some simple tools that can measure terrain and taught Farrell to use.

Farrell's job is to examine the terrain and draw out the terrain.

What Martin and Glads are discussing is the most important part of the planned path.

This road will connect an iron ore and a coal mine.

And extending further northeastward, you can lead to the Annu Fortress.

According to the plan, this road is to lay the railway first so that steam locomotives can be used.

Therefore, the turning radius of the route must be as large as possible, and try not to have too many height gaps in the middle, etc.

These issues must be taken into account when planning the road.

Gries also sent an extraordinary man from the Temple of Craftsmen in the team to speed up the progress a lot.

Fortunately, Faralin originally had a road to Annu Fortress, which was only used to transform it on the basis of the original road

If you are lucky, the original road meets the standards and the project volume will be greatly reduced.

...

The capital of the Kingdom of Lance, Angel City, and the magnificent palace.

A long-haired man wearing a golden headband sat at the top of the hall.

He held a crystal clear wine glass in his hand, which contained purple-red wine, which was emitting a sweet smell.

The beautiful maid stood on both sides, rubbed his shoulders and loosened his legs, with gentle movements but a little frightened.

"Your Majesty, all the troops in the Kache Basin have withdrawn and are heading southwest." A man's voice sounded, seemingly calm, but in fact he also had a little fear and fear.

"Um."

The man, known as His Majesty, took a sip of wine and a syllable came out of his nose.

"Your Majesty, the time for farming is coming soon. Because of the large number of recruitment, the grain output this year may be greatly reduced." The man continued to remind.

"Um."

"Your Majesty, you have sufficient food supply, and you don't have to worry about it within two years, enough to support our soldiers to capture Coretta."

"Um."

"Your Majesty, Gapher's cannon is extremely powerful. I suffered a loss when I first came into contact. Please reconsider the plan to start a war with Gapher!"

The king didn't say anything anymore, raised his glass and took a sip.

But the people below have already started arguing themselves.

The old voice, the young voice, the weak, Kong Wu’s powerful...

The sounds mixed together made the king sigh, and then raised his glass and took a sip.

until……

clang!

A man two meters tall and strong in shape stood up.

He had his head barefoot and his sacrificial robe seemed a little out of character.

The heavy scepter hit the palace floor with a muffled sound, interrupting the clamoring argument.

The palace immediately became quiet and the needles could be heard.

"The confrontation of Gapher is a foregone conclusion. Everyone should discuss how to share the worries of the soldiers in the west, give advice, and let the war end as soon as possible." The man glanced over everyone present and said slowly.

Through the wine glass, the king saw the nobles who opposed the war, and at this moment they were trembling and dared not speak anymore.

However, among the crowd, an old man with gray hair and already very sparse hair took two steps forward slightly, glanced at the man, with a little decisive look in his eyes, and then said to the king on the throne:

"Your Majesty, Gaver is different from Tisven. I heard that someone attacked Faralin Castle from the sea not long ago with five thousand soldiers, but his entire army was wiped out. Should anyone be responsible for this?"

In the hall, this was the first time that Angel's nobles heard the news and looked at the bald man holding the scepter.

The king was also stunned, looked at the old man, raised his hand with a wine glass slightly, and was about to say something.
To be continued...