Anduin, dressed in a gray and green military uniform with a Shell cigarette in his mouth, silently lifted the brim of his woolen hat to keep the cold wind out.

He was standing in an empty square, the snow had been swept away by a snow plow, and the brown hard gravel pavement was exposed.

8-inch howitzers are lined up in several rows, standing tall in the wind and snow. The cold barrel was lifeless, and it pointed diagonally at the bare gravel field far away, in the center of which stood a stone wall that had been targeted for shelling.

The dwarven legations from the Grey Mountains were standing in the distance, gazing at the cannons with a curious gaze that sent a chill down the hands of the elven gunners who were clearing the snow for the cannons.

Upon learning of the dramatic changes that had taken place in Rivendell, the far-sighted Grey Mountain Dwarven Elders took the opportunity to send a delegation to learn from the advanced production technology experience.

Because Anduin introduced himself as a businessman who had traveled across the ocean, this mission was also called the "Westernization Movement".

Incidentally, these dwarves are all "teenagers" under the age of thirty with full beards, tangled muscles, powerful voices, and fragrant armpit sweat.

Anduin glanced at the scale chart slightly, then picked up the big horn hanging from his belt (the kind commonly used by roadside vendors) and shouted: "The 1st and 2nd companies are ready to load, direction 1250, elevation angle 380, fire!"

Boom, boom, boom, boom,

The first two rows of guns fired in unison, and one after another shells weighing a thousand pounds burst out of the chambers, and the huge reaction force caused the artillery base to retreat sharply, and the conical nails at the end lifted the turf on the ground, plowing dozens of ugly scars.

The dwarven boys looked through the telescope in amazement to see the gravel field in the far mountain pass, which had been smeared with red paint as a circular target, already obscured by the sky-high mud and dust, and slowly rising thick columns of smoke.

"I wiped a maggot ......"

The expression on the dwarven boy's face was first shocked, then wistful, and finally irrepressible, uh, eager.

A dwarf with two braided braids jumped up and ran up to the goblin merchant, and said in a trembling voice, "Mr. Anduin, we have all these cannons!"

"All of them?"

Anduin raised his eyebrows, pouted at the elven gunner Nunu beside him, and said, "Second battalion commander, you can introduce this dwarven envoy." ”

"Okay sir," the second battalion commander solemnly saluted, and then said to the dwarven envoy earnestly, "Your Excellency, I'm afraid these cannons can't be sold to you yet." ”

"Why?" the dwarf envoy choked his neck, his eyes widened and he said to the second battalion commander, "What we have is money!"

The second battalion commander smiled awkwardly and said: "It's not a matter of money or not, the key is that you can't use the artillery if you hand it over." ”

"What's the matter?" the dwarf shouted angrily: "Why can't you use it, everyone is two shoulders against one head, you can use your long ears, Lao Tzu can't use it?"

As if hearing the quarrel here, the dwarven envoys left the stand where they had been standing, and came over and began to talk about it.

"Mr. Anduin, we are also part of the anti-Sauron national united front, you can't favor one over the other!"

"Yes, if you want a bowl of water, how can you let the elves monopolize the grace?"

"Well, dwarves and goblins have been a race of brothers since ancient times, and those long-eared people have bad intentions and no one in their eyes because they are tall, how can it be true!"

It was noisy, and Anduin had no choice but to clap his hands helplessly to silence everyone.

The goblin merchant cleared his throat and said, "I say, among you dwarven comrades present, are any of you proficient in curvilinear functions, aerodynamics, and gravity formulas?"

Suddenly, the air froze, and the dwarves stared blankly, saying that they didn't understand what the terms were.

"So, is there anyone who is proficient in or understands the specific solution of binary linear equations?"

The dwarves looked at each other and whispered, but no one raised their hands.

"Well, I'll lower my requirements a little more," Anduin said, rolling his eyes, "Someone always understands addition, subtraction, multiplication, and division, right?"

Finally, a thin (relatively speaking) dwarven boy raised his hand tremblingly, and said expectantly, "I can count how many sheep there are when I was herding sheep in my hometown, and what kind of addition, subtraction, multiplication and division is this?"

Poof, an elven gunner couldn't help but laugh, and then he immediately bowed his head and apologized to the embarrassed gaze of the dwarves.

After all, the background of this world is ignorant and backward in the Middle Ages..... Anduin sighed, and immediately raised the dense shelling scale table in his hand marked with complex parameters,

"Look, comrade dwarves," she said, "artillery is not a simple toy, and it takes a lot of complicated calculations to control it to hit the target. The magnitude of the wind, the air resistance, the weight of the shell, the vertical distance of the target..... You can't become an artillery commander without math skills. ”

"Numbers, math?" the dwarves only felt their brains twitch, and the cumbersome, small, and tiny numbers burrowed into their brains like tadpoles, and all kinds of curves and formulas whispered in their ears like whispers from hell.

The dwarven envoy swallowed his saliva, pretended to be bold and pointed at the second battalion commander behind Anduin, and said, "What about these long ears?

The second battalion commander smiled bitterly and stepped forward and said, "Below is the stargazer of the Rivendell Astronomical Calendar, who was originally responsible for observing the rotation of the stars and measuring their movement cycles. With a talent for arithmetic, he took the position of battalion commander of an artillery brigade. ”

After all, these cannons pulled out by goblin merchants to sell are at the level before the First World War on Earth, and positioning and aiming need to be decided by the commander, and it is difficult to play without the corresponding knowledge reserves.

This is actually not a difficulty, after all, since the Gray Mountain Dwarves sent the delegation over, they have the idea of forming a new army with the elves.

And these delegations composed of teenagers, after going back, will support the skeleton of the new army on the dwarf side as officers, so naturally they have to teach them some real skills, after all, the Howling Angel Merchant Group is fair and kind, and Tong Su is not bullied.

So Anduin also added in due course: "The Rivendell Artillery Brigade only recruits elven boys with mathematical talents, and they also need to go through rigorous exams before they are qualified to become gunners. ”

The collective of the "......" dwarven boys fell silent again.

It's okay for these strong men to wear chain mail, hold chain shackles, and cut into the orc army formation with two-handed axes, as for the use of wisdom and the use of heads.....

As if sensing the retreat of his compatriots, the dwarven envoy coughed heavily, bowed his head slightly towards Anduin, and said, "We dwarves have also built magnificent castles, penetrated deep into dark and narrow tunnels, fought against evil and terrifying monsters, and won.

A little arithmetic challenge, not to be afraid of. Please also ask Mr. Anduin to tell us how to learn mathematics. ”

Gan, isn't it just some numbers? Lao Tzu's hair is thicker than a quill pen that is numb, can you still be afraid?

The dwarven boys who were infected by the special envoy's ambition and pride also patted their chests one after another, saying that they would throw their heads and spill their blood, and their heads would be pierced by the beams, and as long as they could not learn to die, they would learn from the dead.

So, with the eyes of the elven gunners looking at the dead, the dwarves took from Anduin's hands heavy wooden crates marked "Handle with care."

"Detailed Explanation of One-Element Quadratic Equations", "Five-year College Entrance Examination Three-year Mock Mathematics Papers", "Olympiad Mathematics Competition Real Questions", "Introduction to Ballistics"

The dwarven boys who were burying their heads in the discussion seemed to see a touch of black gas with deep resentment in these scrolls, which should be an illusion... Right?