After the test was completed, it was not until all the straw fell to the ground and fifty right guards led the soldiers to withdraw from the field that the old goods in the stands reacted.

"It's enjoyable, it's really enjoyable......" Yu Chigong patted Lao Cheng's shoulder and applauded vigorously.

"The real usage of 'firecrackers' turned out to be placed diagonally." The eldest grandson Wuji suddenly realized.

"Prince, is there anything else, do you have another shot!" This voice is Li Er's.

Li Chengqian turned his head and saw that the old man's eyes seemed to be red, and the countless splashes of dirt and straw seemed to have turned into the flesh and limbs of the enemy in his eyes.

However, it is difficult for the clever woman to cook without rice, a total of more than 100 roots, the last time was half put by the old man, two days ago he took out some for training, and just reimbursed all the only fifty roots, so in the face of the old man's request, he could only helplessly spread his hands: "No, the fifty just now is the last." ”

"Gone? Gone so soon? Cheng Yanjin looked incredulous: "Call them up, check each one of them, and see if there is any ring." ”

"Don't worry, it's all gone, and there's no one left." Li Chengqian recalled the scene he had just seen, and felt that none of the memories seemed to be empty.

As a result, this sentence was regarded as a stabbing basket, and Lao Cheng immediately turned the muzzle of the gun to Wei Chigong: "It's all your fault, last time you asked you to put two less and two less, but you just didn't listen, otherwise you can still enjoy it now." ”

"Don't pull the calf for Lao Tzu, do you put one less than the old man?" Wei Chigong sneered.

"The two of you both stop and add together people in their nineties, arguing in front of juniors, don't be ashamed!" Qin Qiong saw that the old man was getting more and more noisy, and couldn't help but interrupt the argument between the two.

In the military field of the school, in the handsome tent used by Li Er when he fought the world, Li Jing frowned and said: "Your Highness, although this thing is explosive, it seems to be closer. ”

It was really cold and couldn't stand it, and everyone didn't have the patience to wait until they went back to discuss the 'firecrackers', so they had to take out the handsome tent displayed in the school military field as Li Er's good memories and use it.

Regarding Li Jing's question, Li Chengqian could only shrug his shoulders and express his helplessness: "The reason for the close distance is that the bamboo tube is used, and if the bamboo tube is replaced with an iron tube, this thing can hit about 500 steps; The steel can beat 2,000 steps; The copper one can beat three thousand steps; Of course, if you change to steel-clad copper, you can probably hit more than 6,000 steps. ”

"Six thousand steps? Can you still see that? Cheng Yanjin muttered in surprise.

Lao Duan's question made Li Chengqian feel very embarrassed, he just said it casually, how could this product be taken seriously?

It's a bit funny to think of a person with a second kick, always thinking about whether he can hit an enemy eight kilometers away.

In the end, Li Er was more reliable: "It's a bit far to discuss this, prince, you just need to talk about how far you can fight now." ”

Although Li Chengqian really wanted to come up with a heavy artillery that can fight 40 kilometers now, the practical problem of not having a good barrel could not be avoided no matter what, so he could only answer honestly: "One hundred and fifty steps, this is the limit at present." ”

"Isn't that still the same as not saying, one hundred and fifty steps, Lao Cheng just threw it." Cheng Lao Pifu couldn't forget his poor mouth at any time, and when he heard the distance Li Chengqian said, he began to complain immediately.

Just in embarrassment, Hou Junji asked the key point in one sentence, which was exactly the question that everyone was curious about: "It doesn't matter if it's close or not, can Your Highness tell me what is in that tube?" ”

Li Chengqian's ass was already healed, but after sitting for a long time, it was a little itchy and unbearable, so Ya kept moving around, and when she heard Hou Junji's question, she said two words concisely: "Gunpowder." ”

"Fart, don't think I don't know what gunpowder is." Of course, Li Er knew about gunpowder, and the Taoist priests of Xuandu Temple in Chang'an City used this thing to fool him.

"Father, the gunpowder you said and what your sons said are not the same thing." Li Chengqian dared to perfunctory wait for the king's set, but he didn't dare to perfunctory the old man, so he endured the itch on his buttocks and continued: "The gunpowder that Erchen said was recorded in an ancient book, and the production method has long been lost, if it weren't for Erchen's painstaking efforts to find ancient books, and sleepless painstaking study (thousands of words omitted here)......"

"Okay, okay, don't blow it, I know you've worked hard." With Li Chengqian, who had forgotten the pain after the scar, Li Er could only surrender, paused and asked, "How many people know the formula of your gunpowder?" ”

Li Chengqian said: "Well, there are quite a few, they are all guards and craftsmen around Erchen. ”

After Li Jing saw the power of gunpowder, he was a little apprehensive until now, and couldn't help but interject when he heard the words: "Your Highness, this matter is a little bad, the power of this gunpowder is extremely great, if the formula leaks, I am afraid that the consequences will be unimaginable." ”

"It's okay, it's all trustworthy people." Li Chengqian said with some disapproval.

Except for the time when Wang Xuance and others helped make gunpowder in Kaifeng, this time in the palace, Li Chengqian used some people who had families and businesses and had a clear foundation in the six rates of the general prison or the prince.

Moreover, these people don't know what they have come up with, and Li Chengqian has never sold it in front of them, so it should be impossible to leak the formula.

After all, no one has realized the importance of new gunpowder yet, and there is no need to memorize the recipe for this thing.

The most important thing is that in the opinion of Li Chengqian, who graduated from chemistry, the power of black powder is not so terrible, and it takes more than a pound to blow up a few grass targets, and the power can only be regarded as passable.

Compared with the smokeless gunpowder and double-base gunpowder of later generations, the difference is not a little bit and a half.

However, in Li Er's opinion, the importance of gunpowder was not as simple as Li Chengqian thought, and it had already surprised him to be able to blow up the grass target, so the old man almost didn't think about it before he ordered: "Whether you believe it or not, you must control it." ”

Although Li Chengqian didn't care much in his heart, he had to accept it, he must have just been beaten, and the pain had not passed.

The next thing had nothing to do with Li Chengqian, the old goods sent their soldiers back to Chang'an to get wine and meat, and set up a bonfire outside the tent, and put the whole pig and sheep on the rack to .......

Li Chengqian didn't know how hilarious the old men were playing on Longshou Plain, anyway, until noon on the eighth day of the new year, he still didn't see the old men come back.

As the saying goes, there are no tigers in the mountains, and the monkey is called the king.

Li Er was not in the palace, and the princes and princesses were unrestrained, and they were tossing desperately in the palace like wild donkeys off the leash, and even Li Chengqian's 'Lanruo Temple' did not escape their poisonous hands.