"Eight hundred steps? So far? ”

Wang Mian nodded, then took out some drawings from the box and said: "Your Majesty, please look at this thing, this thing is called an arquebus, it weighs fifteen catties, and it is the same principle as artillery, but the distance is much smaller, only a hundred steps." ”

"Is there a physical thing?"

Wang Mian laughed embarrassedly: "If you make it, you will make it, but it is not very useful, and after firing more than a dozen rounds in a row, it will explode." ”

The eldest grandson was puzzled on the side: "What is a bombing?" ”

Li Er suddenly realized: "It's just like the flowering bomb he said." Hearing this, the eldest grandson shook his head: "I hurt myself like this, but the gains outweigh the losses." ”

"From scratch, from there to strong, at this time, as Cheng Qian said, the ancient Ru Mao drank blood, and now the etiquette and civilization are all from nothing to have, from there to fine, and now this object has just been developed It is not easy."

Then he looked at a few drawings and said, "These strange things in the back are also fire guns and other things, right?" ”

Wang Mian smiled bitterly: "This thing is the final state of the fire gun and artillery, His Royal Highness once said that if the Tang Dynasty has this object, there will be no opponent in the whole world." ”

"No more rivals?" Li Er sneered, and was about to speak, when he went to see that there was a sudden noise outside.

"According to His Highness, if this thing is brought to the battlefield, it will be useless to slaughter there, and this gun can fire thirty to forty projectiles in a few breaths, which are larger than the wounds caused by bows and arrows, and the range can reach 800 paces, and the accuracy is abnormal."

Li Er pursed his lips as if he didn't believe it, and then asked some things about drawings and the like, and when he saw which "Miss France" designed by Li Chengqian, Li Er couldn't help but ask: "What is this?" It looks like it's not much different from the gun. ”

"Cannon, this is also one of His Highness's ideas, His Highness once said that if there were 200 of them, he could use the strength of one guard to defeat the whole of Goguryeo.

"Hiss~ How much do you think this is true?" Li Er glanced back at the eldest grandson, who did not speak, but turned to look at the crown on the side.

"Back to Your Majesty's words, Wei Chen didn't believe it at the beginning, and even the artillery that His Highness said was scoffed, but now it seems that His Highness was prescient."

Li Er talked about the piece of paper, and then laughed: "It's not just prescient, it's just a fantasy, haha~ follow him!" Let it be! ”

As he spoke, he returned to Li Chengqian's desk, gently opened the drawer, took out some drawing utensils from it, and asked with some confusion: "What is this?" ”

"This is what His Highness usually uses for drawing." As he spoke, he took out an iron triangular ruler and said, "There are 45°, 90°, 30°, 60°, and 90° angles on the triangle board. Combine a triangle board with a T-shaped ruler to draw a series of vertical lines in bottom-up order. By combining a T-shaped ruler with a triangle, you can draw straight lines of 30°, 45°, and 60°, and draw diagonal lines from left to right. With two triangles and a T-shaped ruler, you can draw 15° and 75° diagonal lines. With the combination of two triangles, you can draw parallel lines of any one of the drawing lines. ”

Li Er heard it as if it was right or wrong, and he didn't understand what these degrees were, what were right angles, but he suddenly felt that these things were very profound, and if he didn't understand them, he didn't want to ask, and the round ruler on this side said, "What is this?" ”

"This is a ruler, used to measure angles."

"This is a compass, for rounding."

"This is a pencil, for calligraphy and painting, His Highness's drawings here are almost all drawn with this thing, these things are nothing new in the Kewu Academy, everyone is using them, His Royal Highness also wanted to promote it, but it was determined by measurement, and it was inconvenient to change and so on."

Li Er looked at the pencil for a while, then put it down, looked at Wang Mian with a smile and said, "Is it because of these things that Cheng Qian quarreled with the Ministry of Works?" ”

Wang Mian smiled awkwardly, and said: "Actually, it's not a quarrel, Lu Shangshu thinks this thing is useful, and he wants to ask His Highness for a recipe, His Highness didn't pay attention to him, so he muttered a few words, and His Highness was upset, so he drove out." ”

"I still know a little bit about Lu Chengqing's temperament, and I guess it's Chengqian who wants to make money, but he refused."

"Your Majesty is aware of everything!"

The eldest grandson and Li Er looked at each other and smiled, then turned to look at Wang Mian on the side and said, "Prepare a copy of the things here, and go back and order Lu Chengqing, the secretary of the Ministry of Industry, to come here to study for a year." ”

"Yes!"

While the two were talking, the servants outside suddenly walked through the courtyard, and shouted the good news as they ran: "The court sentences!" Court verdict! Then the gun came out! Then the gun came out! ”

Wang Mian's eyes lit up, and he bowed towards Li Er is salute and said, "Your Majesty, Fang Cai is the person who made the arquebus, and it should be the one who developed the pistol." ”

"Oh? So fast? ”

Wang Mian smiled bitterly and said: "Don't hide it from Your Majesty, Your Highness has already begun to let his subordinates study this thing as early as the eighth year of Wude, and now it has been made, it is not easy." ”

"Hiss~" Li Er took a breath of cool air, glanced at the eldest grandson on the side, and said: "This thought~ is really bitter for him." After that, he waved his big hand and said, "Go!" Check it out! Is it as powerful as he says it is? ”

On the easternmost school field of the Kewu Academy, several large and small craters were scattered in the distance, and everyone bowed down to salute when they saw Li Er arrive.

Li Er waved his hand at everyone: "Didn't you say that you want to test the gun, I will come to observe it today." ”

The guards on the side handed over a newly made gun, the gun was newly made, the whole gun was about five feet long, thin in front and thick in the back, and the shape was somewhat strange, there was an iron hammer head on the left side, a flint was clamped on the jaws of the hammer, and a blow anvil was set on the side of the fire hole.

"Is this what you're talking about?"

"Then the gun."

"Oh yes, shoot a shot to me."

Saying that, in the distance, a servant had already led a lamb up and tied it to the distance, and the servant with the gun filled the projectile, and with the intention of teasing, he also took out a conical projectile made of lead.

The gunpowder was filled, and then the bullet was compacted, and after repeatedly confirming that Li Er was protected, the trigger was pulled.

After a breath.

"Boom~" There was a loud bang, and the goat a hundred steps away fell in response, Li Er looked at this scene with wide eyes, the eldest grandson covered his ears and carefully hid behind Li Er, and the servant who examined the gun stood tall, holding the spear in his hand and cheering continuously.

"Good! Good! Come on! One more shot! ”

Li Er happily looked at the smoke and dust rising in the distance, and turned to look at a big black iron bucket on the side: "This thing!" This thing is also for me to experiment! ”

Everyone looked at each other, and then Wang Mian stepped forward and persuaded: "This thing is too dangerous, please move your majesty." ”

Nodding his head and about to leave, he seemed to remember something, turned around and said, "Someone!" Go and ask a few generals to witness together! Fast! ”