Daqin Engineering Corps

Page 7

Chapter 7 除非……

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

To be precise, it's not "nothing to say", but "incoherent" or "angry from embarrassment"!

"This is impossible!"

"How can you be so accurate?"

"It's just good luck!"

……

But after Shen Bing tried several times, Chen Wei had no choice but 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 previous man-pulled trebuchet.

Explain with the knowledge of modern physics.

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

And the position of each person, the strength of each pull, the speed of the pull, and the direction, etc.

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

The force acting on the tip of the gun is different, which means that the initial velocity of the stone bullet cannot be the same.

So the shooting range is sometimes near and sometimes far, and it is common to miss nine out of ten shots.

There may even be unexpected dangers at times.

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

These problems can be well avoided by using counterweights.

Its force is definite, predictable, and calculable.

If the effects of air resistance, wind speed, wind direction and shape are ignored, its landing point can even be calculated.

So there is a higher precision.

This also strengthened Yang Duanhe's determination to improve the trebuchet.

So three days later, the Qin army built thousands of new trebuchets.

In fact, if it was just trebuchets, tens of thousands of people would be able to have tens of thousands of them if they were busy for a few days.

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

If it is calculated by firing a stone bomb in 5 minutes.

Then thousands of trebuchets will fire [-] stone bombs in just one hour.

28 stone bombs are needed in one day.

You must know that these stone bombs are not just a random stone.

They also had to be weighed and lightly ground in order to be accurate.

More importantly, once you start the siege, you must attack around the clock and around the clock.

Otherwise, there may be a situation where Qin Jun fights, Zhao Junxiu, and then never ends and can never attack the city wall.

Therefore, most of the troops of the Qin army were not actually making trebuchets, but were quarrying, making and transporting stone bombs.

Fortunately, the Qin army was disciplined and efficient, and hundreds of thousands of stone bombs had been stored in three days.

Then Yang Duanhe couldn't wait to give the order to attack the city.

Thousands of trebuchets lined up in front of the Zhao Great Wall layer by layer to the sound of drums.

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

This made Pang Nuan, who was standing on the top of the city, unable to understand.

"What is Qin Jun doing?"

"How dare you deploy the trebuchet a hundred steps away?"

General Xu Chang laughed.

"General, the Qin army must have deployed the trebuchet a hundred steps away because they were afraid that I would fight back!"

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

Before he finished speaking, Xu Chang's expression changed.

Because there was a "creaking" sound from the Qin army's position, and then thousands of stone bombs rose into the air and came straight to Zhao Great Wall.

Judging from the height and speed of the stone bullet, it is not as simple as not being able to hit Zhao Changcheng.

really……

In the next second, there was only a sound of "booming", and thousands of stone bullets hit the Great Wall almost at the same time.

The Great Wall shook like an earthquake.

Accompanied by flying stone chips and the screams of soldiers.

Pang Nuan can also be considered a veteran with determination, but he was still too shocked to speak in the face of this situation.

"Such a long range and such accuracy!"

"In this way, isn't Zhao Jun powerless to fight back?"

"The Great Wall...how can we protect it?"

In fact, not only Pang Nuan, but other Zhao Jun, including Xu Chang, have thought of this.

So everyone panicked and lost their morale.

On the other hand, Qin Jun burst into cheers.

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

Because it means total security.

Means an easy victory.

It also means the crushing of strength!

As the saying goes, "a layman watches the excitement, an insider watches the way".

For soldiers, it's just pure cool.

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

It is said that Chen Wei's ability to achieve the position of a coward is also based on his true skills.

He was a well-known craftsman before he entered the "Panon Division" of the Qin Army.

He even inherited the fourth-level title of "Buchang" from his father.

The so-called "non-renewal" means that from this level of title onwards, there is no need to serve a round of service.

But Chen Wei set an example and still served as usual and was on the front line making ordnance for the Qin army.

And because of its skilled craftsmanship, it is quite popular and reused.

However, at this time, he watched a stone bullet hit the Great Wall of Zhao Jun, but his expression was very ugly.

"Nimma, what's going on?"

"A few days ago, Shen Bing needed to adjust the position of the trebuchet back and forth to ensure the accuracy!"

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

"In the future, how will I protect my title as 'Gunner No.1'?"

……

It's no wonder that Chen Wei couldn't understand it, because this time Shen Bing adjusted the counterweight.

The counterweight of the trebuchet standing in the front row is smaller, the counterweight of the rear row is heavier, and the counterweight of the rear row is larger.

Therefore, although all the trebuchets are located at different distances.

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

Of course, what are the "parabola", "gravity acceleration", "Newton's three laws" and so on.

Shen Bing will not discuss these things.

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

Shen Bing turned his attention to Yang Duanhe, who was standing on the platform and commanding.

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

Or casually kill Shen Bing.

Is Yang Duanhe a fool?

Obviously not!

So Shen Bing found a preliminary amulet.

That is to say, I have found a small foothold in this world.

It is not easy to survive in this day and age.

As for the others, Shen Bing couldn't think too much for the time being, so he could only take one step at a time.

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

After finally withdrawing from the top of the city, Xu Chang lost his previous self-confidence and arrogance long ago.

He supported Pang Nuan and looked back, his eyes full of fear and panic.

"what is that?"

"Is it a trebuchet?"

"Why is the range more than double that of our trebuchet?"

Pang Nuan snorted.

"It should be Qin Jun who improved the trebuchet!"

"I wonder why the Qin army suddenly stopped attacking the city!"

"So it's all about producing new weapons!"

Speaking of which, Pang Nuan stroked his chest and coughed a few times, and then took a few breaths heavily, not knowing whether he was angry or weak due to old age.

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!"

"What's more, the morale of our army has been drained..."

Pang Nuan interrupted Xu Chang and asked:

"Withdraw? Where can we withdraw?"

"Not to mention that a hundred miles to the north is Handan, and we have no way to retreat."

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

When Pang Nuan said this, Xu Chang was even more frightened.

Yes, if the Great Wall can't stop the Qin army, how can it stop them?

Field battle?

Or Handan?