"The old man always feels that something big is going to happen."

In the political hall, when the three prime ministers were eating together at noon, Yao Chong spoke up.

"What?" Zhang said to cooperate and ask.

"I don't know." Yao Chong shook his head: "The old man only knows that the Li family Zhuangzi has been too calm in recent days. ”

"Isn't he looking for mines, mining, and quarrying stones, and he doesn't care about gold mines." Lu Huaishen proved that Zhuangzi was not idle.

"No, neither does the Drunken Immortal Residence, there is still something to do." Yao Chong is sure that his sixth sense will not be wrong.

Zhang said that he swallowed the chicken: "The newspaper is selling at a loss, but 300,000 more copies are printed every day and sent all the way down the river."

The men sent were clever people who went to live by the river from outside, but the farmer did not go.

Oh, I know, in a few days, Jingzhao Mansion will advertise, this is a big deal. Yao Xiang is amazing! ”

"Really?" Yao Chong doubted, and it made sense to think about it.

Advertise to make money, how much does it cost to advertise once in Jingzhaofu?

When the Li family Zhuangzi successfully advertised in Jingzhao Mansion, he might set up a point in other places where newspapers were delivered, and then advertise as well.

"I heard that in order to save money, many students practice calligraphy on the back of the newspaper, and they can read the newspaper and write for three dollars, which is cost-effective."

Lu Huaishen specially selected it and said that Li Yi had helped the students again.

"It's a pity I didn't ask him if he could make a mat quickly." Yao Chong regretted that he was 'sick' and always had to find something for Li Yi.

In the past, he could still go to Zhuangzi, but now he is not allowed to go, and he is upset.

Li Yi in Zhuangzi is not troubled, he invented small things, which can also become big things.

A flatbed truck is used to carry a large bucket with a pressure well on it, but unlike the well, it is more tightly sealed.

The spout is a small bamboo tube that is connected to a bucket.

As soon as the person on top pressed it, the water squirted out, and it sprayed far away, like a toy water gun.

Zhuangzi used this thing to cool down the cement pavement, it was too hot.

People walk on it with shoes on the soles of their feet, not to mention the hooves of livestock.

Hit the iron palm, and then touched the hot cement road, Ma He was reluctant to go up.

The farmer splashed with water, Li Yi felt slow, and turned his head to ask the workshop to make a water gun.

Li Chengqi saw it, he was stunned for a while, and ran over to press it himself.

He waited until a bucket of water was left and he couldn't suck it up, and then he stopped.

Find Li Yi: "Brother Yi, do you know what this moving pressurized water thing can do?" ”

"Water fights, one for you and one for me, spray each other." Li Yi looked at Li Chengqi.

"Think of one more." Li Chengqi urged.

"There is a stone road in Chang'an City, and it is hot in summer, so people come to splash water to cool down, and it is laborious, so it is better to use a big wooden barrel to pull it."

Li Yi gave another use.

"I have long plugged it with a hole in a wooden barrel, and when I left, I pulled the stopper off, and sprinkled water as I walked."

Li Chengqi emphasized, you just splashed water, you are so stupid when everyone is so?

In winter, when you Zhuangzi skates, isn't this how you pour ice?

Li Yi stopped joking: "It can be made larger, and it takes dozens of people to operate it to extinguish the fire."

I also have a few things, auxiliary fire extinguishing, which requires less manpower, one person can operate it, and three or four. ”

Li Yi said and took Li Chengqi to the side, there was a bucket next to it, there was a bamboo pipe on it, and there was a pipe inside.

Then it is sealed with hemp and oil sludge, and under the bamboo pipe is a one-way valve.

The top is also a one-way valve, reverse.

As soon as the pipe is pulled, the water in the bucket enters the pipe, and the pipe shrinks again, and the water is blocked by the one-way valve of the leather cushion and sprays out from above.

The seal is not good enough, and there is still air coming in, but it can be sprayed out.

Of course, if the front is short, it can be blocked by hand.

Or there is a place in the middle that can be pinched, pinched when absorbing water, and loosened when pressing water.

The other is two people pressing with a crossbar, and one person is responsible for holding the pipe in the opposite direction.

When pressed, the water squirts out, which is larger and farther than a person's water volume.

The third thing is a syringe made of bamboo tubes, which can be pumped and pushed.

Li Yi was playing with the small plastic water gun that the children were playing with, and he magnified it.

"Make the pressure one bigger, dozens of people pressing together, so that the water can shoot up to the height of several floors, and there is a lot of water."

What Li Yi took out was a water dragon used during the Qing Dynasty.

The current fire extinguishing tool is a thick bamboo tube with a large water bladder sealed with skin.

When extinguishing the fire, insert the bamboo tube in the water bladder, and grasp the place of the mouth.

The others pressed the bladder together, and the water squirted out.

Li Chengqi just nodded, this thing is good, several kinds of mixed use.

If there is water in Chang'an City, it will be much easier to rescue.

While he was pondering, Li Yi's voice sounded again.

"But if you have a water source, it's best to make a large vat that is usually filled with water and covered.

In winter, wrap it with a cloth, knock off the ice when you see it and boil hot water to thaw it.

It seems to cost a lot, but it's better than burning a house and burning people to death. ”

Li Yi found that the pattern of Chang'an was good, one by one.

Each square is equipped with a few large vats, it doesn't matter in summer, keep warm in winter.

"Exactly." Li Chengqi relieved himself, beckoned people, picked up things and ran.

Just throw down the words 'I'm not coming back tonight'.

Li Yi asked people to move out another one and continue to cool down the cement pavement.

Not only to descend in Zhuangzi, but the road from Zhuangzi to Chunmingmen is now also paved with cement.

The mud road has been kept next to it, so that it is convenient for livestock without nails.

The road was also hot, and the farmers drove the wagons out, and after spraying a bucket of water, they came back to load it, and another cart continued to spray.

There are no pumps and fire belts, otherwise they would have been pumped in the Bahe.

A large wooden barrel made of wood can hold two tons of water.

Fortunately, the car is strong enough, and there are many cattle and horses, otherwise this road will not be sprayed.

"Where do you get the water?" Passers-by saw it and asked about the water source in curiosity.

"Well water, cool!" The dealer replied.

"I washed my hands and took a sip, and I was dying of thirst, and now they all say that the river is not clean." Passers-by leaned over and stretched out their hands.

Wash your hands first, then hold the water to drink, and by the way, wash your face.

"Tell me to try." After drinking enough, passers-by made new demands.

He operated and took two breaths: "It's easy to extinguish the fire, run with a big bucket in the car, and press it when you get to the place, and the water will spray out so far." ”

On the way to the city gate, there were people washing their hands, drinking water, and saying that they could put out the fire.

The people are not stupid and know the use of things.

Li Chengqi returned to the palace with his things, asked someone to fill the bucket with water, and pressed it at the door of Xingqing Palace.

Li Longji and the palace maids and eunuchs all came out to watch.

After getting the news, a group of people from the political hall not far away also rushed here.

"Look, it's for water fights, one for each person, spraying each other, it's hot and cool in summer.

It can also cool down the road surface in Chang'an City, which is better than splashing it again and again with a basin. ”

Li Chengqi took out the set of words that Li Yi said.

Yao Chong took a pump, sucked the water and pressed it elsewhere, and the water flew out seven or eight feet away.

He smoked again: "Good thing, this gadget, it's easy to make, as long as there are many people, the fire on the second floor can be extinguished." ”

Zhang said and said: "Ordinary people can prepare two at home, and where there is a fire, say hello, and all go to help." ”