Become the city lord from today

At noon, the weather in Chang'an City was extremely hot, and there were fewer people walking around on the streets outside.

They all hid in the shade of the trees to enjoy the coolness, and some even fanned themselves with large leaves.

Enri stood by the window and looked outside,"Your Majesty, it's really hot outside."

Normally, the fox-eared girl likes to lie on the glass, but due to the weather, the glass was a bit hot from the sun.

"Yes, summer is coming."Liu Feng looked out the window and sighed, thinking that he had to make ice last summer.

Mina walked to the window with an electric fan and said,"It will be very hot for people outside without a fan."

The small fan she is holding was brought by Liu Feng from Earth. There are not many of them. Only the girls in the castle use it.

"On such a hot day, it would be nice if everyone had a fan. Enri murmured to herself.

What she considered was that with less traffic, the goods would be unsalable.

"It is not difficult to provide fans for everyone."Liu Feng chuckled and said, it's not an automatic fan, but it's still not difficult to make.

"Well? Isn't this fan very rare?"Anli said doubtfully.

"You can make some manual fans and sell them."Liu Feng thinks this is also a business opportunity.

Summer is here, and many people can't stand the heat. Electric fans can't be sold in other worlds.

It's not realistic to bring a large number of small fans from the earth. What should I do if the battery is dead? Now His technology can't produce batteries yet.

Moreover, if there are too many batteries, they will also contaminate other worlds, which is something he doesn't want to see.

"Manual fan? How to do this?"Mina asked curiously.

When the girls first got the small fan, they thought it was magic. Why did the wind come out as soon as they pressed the switch? It was quite cool.

"All it takes is a few small tools. Let’s go back to the castle and do it tonight."Liu Feng said softly, it's better to do things on the spur of the moment when you have free time.

"OK"Mina nodded softly and immediately started processing the documents.

"………"

Time passed slowly, the sun set in the west, and it was already past five o'clock in the afternoon.

"Come on, let's go back to the castle."Liu Feng got up and stretched his body. He has been busy with government affairs all day, and now is the time to relax.

"Today's files have been processed."Anli also stretched.

Liu Feng did not change back to the emperor's clothes, but went down to the eleventh floor lightly. He will make a manual fan when he goes back.

Everyone went down to the highest floor and returned under the protection of Mira. Arrive at the castle.

Liu Feng took the girls to the restaurant and went to the laboratory after eating.

More than an hour later, everyone had dinner. Today's meal was spicy, but the girls didn't eat spicy food at first. Slowly, it has become more and more boring.

"Nicole, let someone brew some cold food for them to drink. Too much spicy food is good. Liu Feng said gently.

"Yes, Your Majesty."Nicole nodded in response.

Liu Feng stood up, straightened his clothes, and said,"Let's go, let's go to the laboratory first."

"good."Anli stood up and said cheerfully. She had been thinking about making fans for a long time.

"crunch......"

A few minutes later, the door to the laboratory was pushed open by the maid.

Liu Feng took the lead and walked to the experimental table. There were scissors, knives, and some wooden boards on it. These were things that Nicole had left behind when she tried to do experiments before.

Now many things in the laboratory are very complete, and there is no need to prepare anything.

Tisi looked at it curiously and said,"Your Majesty, how do you make this fan?"

Every time they come to the laboratory to make something, they refresh their three views, and this time they are equally curious.

"You need two gears, fan blades, handle and fan body. Liu Feng briefly introduced

"......"Tisi and Wei Ya all looked confused, sounding like they were feeling very complicated.

"Just watch me do it and you'll know how to do it. Liu Feng chuckled and thought it was cute when he saw the bewildered faces of the girls.

It was not difficult to hand over the fans to the scientific research department, but when he had free time, he was still willing to spare some time to accompany the girls. After all, he usually Everyone is busy, so there is less time to have fun together.

"First the parts have to be manufactured."Liu Feng took a knife and carved on the wooden board.

The pattern of large and small gears was drawn on the wooden board, so he just needed to use a scroll saw to cut it out according to the pattern.

Ten minutes later, Liu Feng saw out the gear. He also took cardboard and cut out fan blades.

"First take out the handle, which is the main body of the manual fan, nail a small gear on it, and then install the fan blades on the gear. Liu

Feng explained while operating, at a relatively slow speed, just to allow the women to keep up. He said,"Install a handle on the big gear, then fix it on the main body, then add some lubricant and then shake the handle. The gear will drive the fan blades on the pinion to start rotating."

"Your Majesty, is this all right?"Anli said in astonishment.

"That's pretty much it. For safety, you can just put a layer of wood on top to fix the whole thing. Liu Feng explained

"What is the principle of this?"Weiya asked curiously

"The gear drives the gear, and one rotation of the large gear is enough for the small gear to move several times, which saves a lot of effort. Liu Feng patiently explained

"So this is ah."Weiya nodded in understanding.

"Your Majesty, this is so fun, the wind is really coming out."Enri was playing with the fan she had made.

"Enri, let me play."Tisi took over the fan and started tinkering with it in the same way.

"Your Majesty, can this be mass-produced by the workshop?"Anli asked curiously.

After Liu Feng thought for a moment, he said softly,"It's almost the same, but the cardboard for this fan blade is not strong. Let the workshop develop some stiffer materials to make the fan blades."

"OK"Anli responded

"The main body of the fan can also be done a little bit, so that the workshop can do some carvings on it, so that it can be sold to rich people, those merchants and nobles who prefer gorgeous ones. Liu Feng said after thinking about it

"clear."Anli covered her mouth and said with a smile. Those merchants and nobles make money very easily. As long as they make something with a distinction between high and low, they will definitely buy the expensive one.

"There are no other big problems. You can also ask the workshop to add some paint to make the overall look better. Liu Feng added

"This will sell faster."Anli said crisply.

"Third update,(￣▽￣)Please customize and support."

_Feilu reminds you: three things about reading - collection and recommendation