Wait until the eunuch goes out with a warrant and asks people to send it out eight hundred miles in an expedited manner.

Li Shimin stared at Lu Heng, who was sitting opposite him, for a while.

Lu Heng, who had been watching it, was a little furious in his heart, so he said:

"You just said that as long as a coffin has so much gunpowder, you can blow up the walls of Chang'an City, right?"

"In your opinion, this gunpowder is so powerful."

"What do we need to do to ensure that we don't get harmed by it?"

In fact, Li Shimin's concern surfaced in his heart after reading the war report.

Wang Xuance and the two dozen or so people relied on the gunpowder in their hands.

can directly annihilate an army of Tubo.

So what if the Tang Dynasty officials and troops under him also encountered this kind of enemy?

Not to mention, Lu Heng actually said it just now.

As long as a coffin of gunpowder can blow up the indestructible city wall of Chang'an in Li Er's opinion.

This is not a horror story for Li Er.

Because once gunpowder became popular in the Tang army.

In case someone rebels in the future.

Now these impregnable walls of Chang'an and the palace walls of his Daming Palace.

Wouldn't that all be a paper paste?

Facing Li Er's inquiry, Lu Heng frowned.

The development of science and technology has brought about a two-way street.

Because in later generations, there is a proper noun called late-mover advantage.

It is worth noting that those countries that are latecomers at a certain stage have a greater advantage in development.

Of course, this is also a matter of course, because those countries that have been the first mover will always have to take some detours if they want to continue to explore new paths.

Latecomers, however, only need to follow in the footsteps of their predecessors.

And at this time, if those first-mover countries do not know it once they go down the wrong path.

Maybe it will be overtaken by the originally backward countries.

Nowadays, gunpowder is for Datang.

It's almost the same situation.

It doesn't matter how good your secrecy is.

Once there is a person who knows the formula, he can't resist the temptation of the enemy country and chooses to join the enemy.

Then this recipe will naturally be revealed.

It's just that in fact, Lu Heng himself is not too worried about this kind of thing.

This is because, according to Datang's current level of science and technology.

If nothing else, just empty all the things in his head.

I don't know how many more years it will take.

But in the face of Li Er, Lu Heng naturally wouldn't say this.

Because he felt that since Li Er already had such worries.

In fact, it is also a better choice to give him a little more oppression.

"Father, in fact, I have also thought about this worry of yours."

"However, my answer may be a little different from what you have in mind."

"I think the only way to avoid this from happening is to speed up our own development."

"As long as we develop fast enough, even if some enemy countries learn something, they will never be able to surpass us."

After listening to Lu Heng's words, Li Er's brows couldn't help but wrinkle together.

According to Li Er's thoughts, the easiest way to solve this kind of thing is to think of it.

That is, we must do a good job of strict confidentiality.

For example, gunpowder, which is an important weapon of the country, must no longer be passed on to the outside world.

Especially like Lu Heng, he actually directly gave it to an officer who was going to fight in an enemy country.

The instability factor is too great.

is so big that Li Shimin's small heart can't stand it.

But in the face of these words from Lu Heng, Li Shimin had to ask in confusion:

"What do you mean by this development?"

"The meaning of development is very simple, that is, we can make a steady stream of new things faster."

"Like this gunpowder."

"In fact, in my opinion, like Wang Xuance, they put a coffin in it, and then buried it in the ground to blow up others."

"It's so untechnical."

"If you need it, I can design something called artillery for you right now."

"It is also the use of gunpowder, but the practicality is more than 10,000 times stronger than Wang Xuance's method."

"In this way, even if the formula of gunpowder is known to the enemy country at that time."

"Aren't they the same and can only continue to be pressed and beaten by us?"

When Lu Heng said this, he paused for a moment and continued:

"Actually, according to what you think, what kind of secrecy is definitely not very useful in my opinion."

"Because secrecy is a thing, the biggest harm is nothing else, it is precisely to limit our own development speed."

"Otherwise, father, you can think about it yourself."

"If it's a hundred or two hundred years from now, we will have gunpowder in our hands."

"It can only be used like Wang Xuance and them today."

"Then once the enemy gets this thing, won't we have no advantage at all?"

"And if we can develop fast ourselves, no matter how much the enemy steals our technology, then they can only keep running behind our ass."

"We're always going to have an advantage over them."

"So, only development is the last word!"

At this time, Li Er, who was a little dizzy by Lu Heng's long speech, was probably really moved.

actually asked directly: "Then this development you are talking about?" How? ”

"Although I have fought for most of my life, I have not read this book less."

"Based on what you just said, I thought about it in my heart."

"It seems that since ancient times, I have never seen any major developments."

Facing Li Er's question at this time.

Lu Heng naturally said with confidence:

"Father, you don't need to worry, since your son can say this method."

"That's certainly well prepared."

"Now let Erchen introduce you to these things that Erchen is going to do."

"As long as you cooperate with your sons, Datang will inevitably attract a huge development that will make you famous for eternity!"

"First of all, the son wants to tell your father about this matter, that is, patents!"

Seeing that Li Er was about to be fooled by himself, he was lame.

Lu Heng naturally wouldn't be polite anymore.

I will do what I want to do next.

They were all packed up and thrown out.

In addition to the last time and Li Mingyu, there are also patents mentioned by Sun Lao.

It also includes the expansion of the college at a big loss.

And it is hoped that when the time is right, the plan of basic education will be carried out in the whole of Datang.

In addition, I plan to make alcohol, make glass, and print movable type.

All of them are going to be converted into public-private partnerships.

They all smashed towards Li Er.

Because Lu Heng seems to be an endless new idea.

Li Er seems to be fascinated by the development of this thing.

So from the afternoon when Lu Heng entered the palace, the two of them were stunned to talk and listen.

It was until dinner time, but I didn't finish it.

Lu Heng's queen mother-in-law could only come to the Liangyi Hall in person.

Only then did these two people fall on the dinner table.