Chapter 80 Five-color fireworks

As mentioned last time, Liu Hou asked Zhou Xue if she wanted to play with fireworks. Zhou Xue replied: "Fireworks? Isn't that what our army uses to deliver information? How can this thing be played? ”

"Uh......" Liu Hou doesn't know what to say, now the Shu army is indeed using fireworks as a means of transmitting messages, is it not the meaning of the princes of Zhou Youwang Fenghuo to play with these military settings? However, in later generations, this firework was indeed used to burn and play.

"This, this, that's the case, during this time, Master Zuo and I studied the flame color reaction, you should have learned this flame color reaction, right?" Liu Hou could only puff up his tongue and fool her.

"I know this, Master Zuo has taught me that different elements will take on different colors when burned."

"Yes, so I used the principle of flame color reaction to create a batch of colorful fireworks, in the past, we only had two or one color of fireworks to deliver messages, so the amount of information that can be transmitted is very limited, now there are several colors, so there is a lot more information that can be transmitted."

"Oh? And this kind of thing? ”

"Of course, for example, if we add sodium nitrate to gunpowder, fireworks will emit yellow light, copper sulfate will emit green light, aluminum powder or aluminum-magnesium alloy will emit white light, calcium carbonate will emit red light, and cobalt carbonate will emit blue light.

In this way, we have five colors of fireworks, so that we can convey at least five meanings, and if we combine them, we can convey more information. ”

"Can you still use the flame reaction like this?" Zhang Xingcai said.

"Of course, it's not for me to say you, it's not enough for you to bury your head in research all day, but also to think about how to translate your research results into practical applications, so that you can benefit the people. This is called applying what you have learned, or applying what you have learned. In this way, your research will be more meaningful. It will also be known by more people. ”

After explaining his fireworks, Liu Hou did not forget to give Zhang Xingcai an ideological education in a timely manner.

"Then you can't play with these fireworks." Zhang Xingcai said.

Liu Hou was defeated by her, and he finally explained the principle of several colors of fireworks, and originally wanted to change the topic so that she would not be entangled in having fun with military supplies, but who knew that she would still chase and beat herself relentlessly.

"I'm playing with it, I'm experimenting with these new fireworks to see if they work and see if there's anything that needs to be improved. In addition, I also want to study a set of coding systems for military orders. Do you know about coding? Liu Hou continued to take her in other directions.

"Of course I know the coding, and if you want to use this simple five-color signal to design a coding system that can express various meanings, I'm afraid it's not easy, right?" Zhou Xue was successfully diverted by him.

Liu Hou thought to himself, is it because you don't have knowledge, you don't know binary and location codes, two signals can contain the whole world, let alone five? But he wasn't going to discuss esoteric academic issues with her here.

"There is no need to express too complicated meanings, military summons usually have only a few meanings, just enough. And, for the sake of secrecy, the meaning of these codes needs to change from time to time, and the meaning of each color cannot be fixed. Just agree on the meaning of the signal before performing a task. ”

"As long as everyone agrees on the meaning of the signal before performing a certain task, then what else are you researching?"

"Uh, this ......" Liu Hou felt dizzy, this woman is really terrible, too smart, it's really not so easy to fool. Why didn't you see that she was so delicate when she was a child? When she was a child, she was a martial arts and violent little girl, a bit like Zhang Fei's character, how did she grow up and become a delicate and thoughtful intellectual woman?

"I'm going to work out some general rules so that those officers have a frame of reference, so they don't have to look at each other. You know, a lot of officers are big and coarse and don't understand anything, and if they don't have a clear operating guide, they are likely to get into trouble. ”

"Oh." Zhang Xingcai sighed, and accepted Liu Hou's explanation.

Daytime is not a good time to set off fireworks, Liu Hou shouted to the people gathered at the door: "Tonight, there will be a fireworks display here at the main gate of the Assassin's Mansion, please watch it on time." ”

After finishing speaking, he waved his hand and let the people disperse, and he returned to the Assassin's Mansion himself. There was a lot of talk among the people, and most of them didn't know what this firework was.

However, through the observation of Guò during this period of time, he knows that His Royal Highness the Crown Prince is a good person who loves the people like a son, so he is not worried that the prince will harm himself. So, most people have made up their minds to come and see what this fireworks display is all about at night.

During the day of this day, Liu Hou still had a very dull life, and asked Zhou Xue to enjoy the peach blossoms for a while, but he didn't find any signs of peach blossom luck, so he quickly ended the date and went to pay New Year's greetings to Fei Yi, Buqi and other officials.

Zhang Xingcai ignored Liu Hou's invitation at all and continued to stay in the real room, which made Liu Hou worry about his future married life, and for the first time regretted guiding Zhang Xingcai to the path of science.

At night, that is, at 19:00, Liu Hou appeared on time outside the gate of the Assassin's Mansion. Outside the gate of the Thorn Mansion is the widest and straightest street in the city, and the end of this street is the Thorn Mansion.

When I arrived at the Assassin's Mansion, the street suddenly widened a lot, forming a space like a small square. In addition, on both sides of the street 100 meters away from the Thorn Mansion, there are no other houses. So it's a relatively empty location, which is perfect for setting off fireworks.

At this time, this small square was already crowded with people, and when Liu Hou came out with Zhang Xingcai, Zhou Xue and a group of officials and generals, he was taken aback, so many people, what if there is any mass incident?

Liu Hou ordered the guards to clear a vacant lot at the entrance of the Assassin's Mansion, and these wolf-like guards immediately went down, slapped the people blocking the gate with their scabbards, and quickly cleared out a ten-zhang square clearing.

Liu Hou waved his hand, and some soldiers carried out 9 large iron cylinders and lined them up in the open space according to the arrangement of the nine-square grid.

The people were very curious, and they gathered around to see the strange thing, and some of the bold ones even stepped forward to touch the big iron cylinders, and asked the soldiers about it. It's a pity that these soldiers are all cool, and no one answers the questions at all.

Liu Hou looked at the chaotic scene, worried that there would be an accident, so he called over a personal soldier captain and gave him a few words. The captain of the pro-soldier led a small group of pro-soldiers to the clearing, and asked the group to puff up their breath and shout to the crowd neatly:

"Folks, please note that fireworks are about to begin, these fireworks are explosive substances and have certain dangers. When fireworks, there is a loud noise, as well as fires and smoke screens. Please stay away from the fireworks site to avoid being injured by the fire. ”

This passage was shouted three times, and the guards of the Assassin's Mansion cooperated with the past to drive away the crowd, and finally let the people stand a little farther away, and finally they could start setting off fireworks.

Liu Hou gave an order, and two soldiers from each of the nine big iron cylinders on the field were busy. These large iron cylinders are not ordinary large iron cylinders, in fact, they should be called mortars more appropriately. That is, a cannon with a very thick caliber and a very short barrel.