Lucia took the ore to the way to his Highness the prince, still in her ear, and still went round the nighting-on words.

I have to say that she was shocked by the calm attitude of the other party.

Although I don't understand the relationship, but the witch and the prince... can't be together at all?In this way, should not be careful to hide their minds in the heart, so that the other party does not know?

And why does she even feel red-faced and embarrassed as an audience?

Standing in the office door with a deep breath, Lucia pushed the door inside.

"Your Highness, I brought the ore."

“Let me see,” Roland yawned.

The ruler of the border town looked just as usual, and his sleepy eyes should have been sober from his nap, and he leaned back on the back of his chair, in a natural, easy-going manner, and not at all as harsh as the nobility.

Lucia's nervousness also relaxed a lot, she took out of her skin bag and put the ore particles found in the North Slope mine, one by one on her desk.

After the ability to decompose, these particles look almost the same, the color is not silver or gray, probably only the knowledgeable Prince His Royal Highness can distinguish what is the ore.

I saw the prince frowning for half a day, one by one in his hand, and carefully looking at the sunlight behind him, and finally waved, "Cough, I will give these ores to Mr. Scully to identify, you continue to go to the north slope backyard to practice your abilities, if you do not understand, ask Anna for advice."

“Doesn’t even your majesty know him?”Lucia bowed her head, "Yes."

Just as she was about to leave the office, Roland stopped her again.

"Yes, you have good results in this test, 68 points in ninth place.It is not easy to follow everyone to learn for a month to have such a watch reality, and it must be maintained.And . . . he paused, "The next time I test, I hope the bell will be with you."

“Yes!”Lucia answered excitedly.

****************************************************************************************************************************************************************************

After watching the little girl bow happily, Roland sighed at the metal particles on the table.

He was still too naive, full of thought that after breaking down into a single matter, he might be able to figure out which veins were hidden in the North Slope ore, but the facts made him understand the huge gap between mechanical engineering and geology - these stones will eventually differentiate into three or four metals, and the largest amount of the remaining stall can be considered to be the ore of the metal, but they are almost the same in color and shape, such as iron, aluminum, magnesium, potassium.

Or leave the problem to the chief alchemist to solve it, after all, it is much more reliable to verify the properties of the material through chemical reactions than to guess.

After finishing the matter, Roland pulled out a piece of paper and began to plan how to deal with this year's demonic month.

Seeing that summer was coming to an end soon, the three months of autumn were his last preparation, and in addition to resisting the evil beasts of the west, he had to pay attention to Tiffico and the Church on the east side at any time.Compared with the previous year, the population and income under his rule have increased significantly, the iron production is also gradually increasing, the witch is more than a dozen, and it is completely certain that the western realm will become an insurmountable copper wall.

According to the combat experience of the previous year, the greatest threat to the city walls is undoubtedly the mixing of evil beasts, especially when the enemy has a thick carapace, and when the gun is difficult to wear, it is either close to the use of explosive bags, or sent witches out of the city to fight, whether it is that kind of countermeasures, the danger will be greatly increased.

In addition, most of the enemies he faced were cavalry and infantry, and he had not yet seen the siege weapons of this era.If the other side can set up a torque thrower, or a more advanced counter-swing stone machine, I am afraid that it will encounter no small trouble - after all, the front gun is very inconvenient to shoot down, and the gun needs to be raised again every time it is loaded, and the shell is also easy to roll out of the cannon.

It is imperative to develop a more powerful gun.

Roland thought and listed the indicators he needed on the paper.

First of all, it should have enough range and power to break through the carapace of mixed evil beasts a kilometer away, and secondly, it must be a rear-loaded ammunition that freely adjusts the pitch angle and has the ability to shoot quickly.Finally, in order to reduce the repeated development time, in the design should consider a gun multi-use, that can be used as a fixed fort to suppress the enemy, you can also directly pull to the ship, as the main weapon of the future shallow water heavy gunboat.

So it should be a large caliber, long body barrel heavy gun.

Roland first thought of the fifteen-six-inch behemoths on the battleship, with a range of tens of kilometers, and a single shot to dig up several meters of pits on the ground, but he quickly rejected the unrealistic idea.Although there is no problem in processing, the current level of material in the border town alone, at least nine cannons in the ten cannons will explode, and even if the pipe wall is thickened to more than one meter, the created things will lose their practical value because they cannot be moved.

He can only produce at most pure iron and ordinary steel with high purity, and the plan is conservative.

Roland finally set the caliber on the sacred number of "one hundred and fifty-two millimeters".

The gun uses a stand-whiding bolt, similar to a door that can be slid up and down, showing the cannon when it is lowered, the shells are loaded, and the lock is closed after the reset is restored upwards, so that the gunpowder gas will erupt forward.Compared with the screw gun latch and the cross wedge gun latch, its firing speed is the fastest, and the principle is very simple, and its mechanical structure has long been familiar in his heart.

However, in order to achieve rapid firing, the gun must also be equipped with a stationing retreat and recovery mechanism, which is simply like two air drums, one filled with oil, and one for the re-injection or gas.The back seat of the muzzle pulls two-barrel, compresses the oil and the re-injection machine at the same time, the oil is used to buffer the recoil, and the re-injection is completed, and the barrel is pushed back into position after the shell is completed.

Finally, the cannonballs.

Since the use of the Holy Spirit gun, naturally can no longer be satisfied with the poor solid iron ball and paper-wrapped shotgun - Roland, for safe consideration, decided to develop two kinds of fixed-load shells at the same time, one is an enlarged version of the bullet, the warhead is solid metal; the other is an explosive warhead with trigger fuses, that is, the howitzer of the future.After all, the latter has a certain technical difficulty, the reliability of the fuse needs to be tested repeatedly, and it is impossible to guarantee the assembly of troops before the month of the demon, so it is necessary for Mr. Pre- embarrassed to solve the problem of whether he has any problems.Even the solid warhead, used against the slow movement of the evil beast and fixed siege equipment is easy.

Of course, whether it is that kind of shell, it needs to consume a lot of smokeless gunpowder.Before the mass production of the two acids was not achieved, the new artillery could only be used as a special weapon, and it was impossible to achieve a smooth artillery cover.

Just then, the guard pushed the door in.

“Your Highness, there is a secret letter from the king’s capital.”

Roland put down the quill and opened the envelope.The letter was unsigned from beginning to end, and the handwriting was unfamiliar, but the contents of a single sentence indicate that the letter was undoubtedly sent by Tusa.

"A team of about a thousand people left the royal capital today and headed for the west.(Unfinished.)