Daqin Engineers

With this "seeing is believing", Chen Kui has nothing to say.

To be precise, it is not "nothing to say", but "incoherent" or "annoyed into anger"!

"This is impossible!"

"How can there be such an accurate head?"

"It's just luck!"

...

But after Shen Bing tried this repeatedly several times, Chen Wei had to believe this fact and shut up.

The range and accuracy of the new trebuchet can be adjusted.

Although the accuracy is still not high, it is much better than the trebuchet pulled by humans before.

Use the knowledge of modern physics to explain.

The human trebuchet requires at least thirty people to pull at the same time.

And where each person is standing, the strength of each pulling, the speed of pulling time, and the direction, etc.

These all determine that the force of the gun cable acting on the gun tip is different each time it is fired.

The different forces acting on the tip of the gun means that the initial velocity of the stone projectile cannot be the same.

As a result, the range is short and long, and it is common to miss nine shots from ten.

There may even be accidental danger sometimes.

The most serious thing is that the strength is too weak to throw the stone bullets, and the stone bullets will hit themselves and even the trebuchet itself from top to bottom.

These problems can be avoided by using counterweights.

Its force is certain, predictable and calculable.

If you ignore the influence of air resistance, wind speed, wind direction and shape, you can even calculate its point of impact.

So there is a higher precision.

This also strengthened Yang Duan and his determination to improve the trebuchet.

So Qin Jun made thousands of new trebuchets three days later.

In fact, if it's just a trebuchet, tens of thousands of people will have tens of thousands of them after a few days.

But the more important thing about the trebuchet is not the trebuchet, but the stone bullet.

If it is calculated by firing a stone bullet in five minutes.

Then thousands of trebuchets will fire 24,000 stone bullets in just one hour.

It takes 280,000 stone bullets a day.

You must know that these stone bullets are not just a single stone.

They must be weighed and lightly polished in order to ensure the accuracy of the head.

More importantly, once the siege begins, the attack must be carried out around the clock.

Otherwise, there may be a situation where Qin Jun fights and Zhao Junxiu, and then will never be able to attack the city wall forever.

Therefore, most of the Qin army's troops are not actually making trebuchets, but quarrying, making and transporting stone bullets.

Fortunately, Qin Jun's discipline is extremely efficient, and hundreds of thousands of stone bullets have been stored in three days.

Yang Duanhe couldn't wait to issue the order to siege the city.

Thousands of trebuchets drove in front of Zhao Great Wall with the sound of drums.

Of course, these trebuchets are all a hundred steps away from the Zhao Great Wall.

Pang Nuan, standing on the top of the city, couldn't understand it.

"What is Qin Jun doing?"

"The trebuchet was deployed a hundred steps away?"

Minister Xu Chang laughed.

"General, Qin Jun must be afraid that I would wait for a counterattack to deploy the trebuchet a hundred steps away!"

"They never thought, if we can't beat them, how can they..."

Xu Chang's face changed before he finished speaking.

Because the Qin army's position had made a "creaking" sound, and then thousands of stone bullets leaped into the air and headed straight for Zhao Great Wall.

Looking at the height and speed of the stone bullet, it is by no means as simple as not being able to beat Zhao Great Wall.

really……

In the next second, only a sound of "boom" was heard, and thousands of stone bullets hit the Great Wall almost simultaneously.

The Great Wall shook like an earthquake.

Accompanied by flying stone chips and the screams of soldiers.

Pang Nuan can be regarded as a determined veteran, but in the face of this situation, he is still shocked and speechless.

"Such a long range and such a precise head!"

"Doesn't Zhao Jun have no power to fight back?"

"This Great Wall...how to protect it?"

In fact, it wasn't just Pang Nuan, other Zhao Jun including Xu Chang thought of this.

So everyone was panicked and morale lost.

On the other hand, Qin Jun burst into cheers.

Being able to form the advantage of "I can hit the enemy but not me" is cool.

Because it means complete security.

Means an easy victory.

It also means the rolling of strength!

As the saying goes, "the outsider sees the excitement, the insider sees the doorway."

It's just pure coolness for soldiers.

But for an experienced craftsman like Chen Wei, the shock of this trebuchet and Shen Bing's understanding have risen to another level.

In other words, Chen Kui's position as a husband-in-law is also based on his true ability.

He was a well-known craftsman before entering the "Artillery Master" of the Qin Army.

Geng inherited the four-level title of "Not Geng" from his father.

The so-called "no change" means that from this level of knighthood, you don't have to serve rounds.

But Chen Wei led by example and still served as usual on the front line to make ordnance for the Qin army.

Because of his skilled craftsmanship, he is quite reusable.

However, at this time, he watched a round of stone bullets hit the Zhao Jun Great Wall, his face was very ugly.

"What's the matter with Nima?"

"The guy Shen Bing needed to adjust the position of the trebuchet back and forth a few days ago to ensure the correct head!"

"As soon as the battle starts today, you can hit the target uniformly without adjusting the position?"

"In the future, how can I protect my title as the'first man of the artillery'?"

...

No wonder Chen Wei couldn't understand, because this time Shen Bing adjusted the counterweight.

The trebuchet in the front row has a smaller counterweight, the back row has a heavier counterweight, and the back row has a larger counterweight.

So although all the trebuchets have different positions.

But the stone bullets they fire can hit the same target: the enemy's Great Wall.

Of course, what kind of "parabola", "gravitational acceleration", "Newton's three laws" and so on.

Shen Bing won't discuss these things.

This may be basic knowledge for modern people, but for ancient people who have hardly studied mathematics or physics, it is a wordless book.

Shen Bing cast his gaze on Yang Duanhe, who was standing upright on the stage of command.

As long as Yang Duanhe is not a fool, Shen Bing will not be easily exposed to Bing Duan in the future.

Or casually killed Shen Bing.

Is Yang Duanhe a fool?

Obviously not!

Therefore, Shen Bing found an amulet initially.

That is to find a small foothold in this world.

It is not easy to survive in this era.

As for other things, Shen Bing can't think about that much for the time being, and can only take one step and count one step.

When Shen Bing was planning for his own survival, Zhao Jun did the same.

After finally withdrawing from the city, Xu Chang has long lost his previous confidence and arrogance.

He helped Pang Nuan look back, his eyes full of fear and panic.

"what is that?"

"Is it a trebuchet?"

"Why is the range more than twice as far as our catapult?"

Pang Nuan snorted.

"Imagine that Qin Jun improved the trebuchet!"

"I said why the Qin army suddenly stopped siege!"

"It turned out to be full production of new weapons!"

Speaking of Pang Nuan, he stroked his chest and coughed a few times, and then took a few breaths. He didn't know if he was angry or was old and physically weak.

After thinking about it, Xu Chang suggested:

"General, let's withdraw our troops!"

"It's only a matter of time before the city breaks down like this!"

"Not to mention the morale of our army has vented..."

Pang Nuan interrupted Xu Chang and asked:

"Withdraw? Where can we withdraw?"

"If you don't say a hundred miles to the north, it is Handan that I cannot withdraw."

"If the Great Wall's natural dangers can't stop Qin Jun, where do you think we can stop them?"

When Pang Nuan said this, Xuchang was even more frightened.

Yes, if the Great Wall Natural Hazard could not stop Qin Jun, how could it stop them?

Field battle?

Or Handan?

Qin Jun could still move the catapult forward, and then it was over with a fierce bombardment at Zhao Jun.

Does that mean...surrender is the only way out?

However, Pang Nuan still gave Xuchang a glimmer of hope.

Pang Nuan frowned and considered for a while, then squeezed out two words from his teeth: "Unless..."