Du He hurriedly logged out of the system and couldn't wait to open the box.
A solar electric fan appeared in front of him.
This is a fan that is half a person's height. At the bottom is the base of the battery, which is about a foot high. There is nothing special about the fan. The key is a solar charging panel on the back that is as tall as a person, but it is very scary.
Du He took a closer look and immediately cursed: "Nah, what a dog system."
It turns out that this solar charging panel is fixed on the base.
Du He scolded: "Is it possible that I, the young master, should run under the sun to fan the fan? No, this is too bad. I have to find a way to modify it."
As he said that, Du He took out a hammer from his tool box, and after banging it for a while, he finally separated the solar charging panel from the fan.
Afterwards, Du He hurried to the R&D center and asked Lao Yuan to find several skilled craftsmen to start making copper wires.
After spending a whole afternoon, Du He watched over several craftsmen and finally made two copper wires about two feet long, which he happily took back to his room.
When he returned to the room, he called Lu Bu. He first put the solar charging panel on the roof, then connected the copper wire under the solar charging panel, led it back to the room around the pillar, and connected it to the electric fan.
Kata.
Turn on the switch and the fan will start spinning.
Du Hola pulled over a revolving wooden chair, half-lyed down, and said with satisfaction: "Such a small life, even if you give it to an emperor, you wouldn't change it, hahaha..."
Before he finished speaking, a voice was heard outside: "Du He, do you want to rebel?"
Du He knew it was Li Lizhi without having to guess.
He turned around and saw Li Yuanshu and Li Lizhi walking in together.
Li Lizhi was like a little puppy, with her mouth open and her little tongue sticking out to dissipate heat.
As soon as Li Yuanshu walked in, she said curiously: "Why is it so cool in this room?"
The little beauty Li Lizhi also looked puzzled, then looked at the fan behind Du He with wide eyes, and asked in surprise: "What is this? It can actually make wind?"
The two beauties, big and small, immediately gathered around the electric fan and made ahhhhhhh sounds of surprise.
…
Mo Yifei opened her eyes and found herself lying on the bed. The first thing she did not care about was her condition, but hurriedly looked for the blueprint of the three-blade fan that Du He had given her.
Then she found the blueprint next to her.
Regardless of the waves of dizziness coming from her head, Mo Yifei actually picked up the drawings and ran to the laboratory.
After staying in the laboratory until the second watch, Mo Yifei dragged her tired body back to the room, with a proud and proud smile on her face.
At dawn the next day, Mo Yifei took the craftsmen to the production workshop of the furniture factory. They worked all morning and finally installed a huge three-blade fan.
In fact, it is not difficult to make a fan. What is difficult is to use water to drive the fan. After some improvements by Mo Yifei, the fan started spinning in a short time.
The workers who were still on the assembly line of the furniture factory suddenly felt a gust of wind blowing away, blowing away the stuffy heat and irritability.
Mo Yifei said happily: "It's successful. Fans must be installed here, here, and here."
By the time Du He arrived at the scene, Mo Yifei had already directed the craftsmen to install two fans. Looking at the workers, not only did they not suffer from heat stroke, but they were all very motivated and discussed the water-powered fans from time to time."
Du He said with a smile: "I didn't expect that this girl is so capable and worth training."
If Mo Yifei's origins were not unknown, he would have planned to keep this female scientist. Although the R&D center is supported by Lao Yuan, Lao Yuan is a Taoist priest after all. Many times, he still uses metaphysics to do things, so that
Du He was speechless for a time. For example, the grenade secretly manufactured by the R&D center. Lao Yuan insisted that it would not misfire after drawing symbols on it, and the three-sided military spurs had to be soaked in children's urine to be durable. Du He was impressed by everything.
I can't laugh or cry.
With Mo Yifei's help, Du He saved a lot of things.
So he was not idle either.
At noon, he took seven or eight craftsmen to the courtyard of the R&D center, and asked people to drain all the water from the pond in the center of the courtyard, and then bring water from the Ba River to fill it up.
Later, Du He found a huge bath bucket.
He also cut down a lot of bamboo, cut the bamboo into sections and cleaned them, filled the pillars with water, and inserted a small wooden stick.
Finally, more than a hundred bamboo sections were put into the bathing bucket and wrapped in black cloth. Two large stones were tied to the bottom of the bathing bucket and sunk into the pool.
Yuan Tiangang, Mo Yifei, Li Yuanshu and others were all shocked by Du He's actions.
Some people even thought that Du He wanted to take a bath here.
After all the preparations were done, Du He said: "Come here, pour all the saltpeter in."
The craftsman next to him hurriedly poured three large boxes of saltpeter prepared in advance into the pool.
Just listen to the sound of popping popping.
Pieces of saltpeter melted in water.
Suddenly, everyone around felt a wave of cold coming.
After more than an hour, people saw that all the saltpeter had melted away, and the water in the pond turned into a thin layer of ice.
I saw Du He wave his hand: "Get the barrel out."
Four craftsmen immediately jumped into the pool and endured the freezing temperature to lift the barrel out.
Du He personally uncovered the black cloth, then took out a piece of bamboo and cut it open with a dagger. Suddenly, a popsicle appeared in front of everyone.
Du He picked it up, looked at it, brought it to his mouth, took a bite, and immediately said with satisfaction: "Okay, it's a magical tool for relieving the heat, hahaha..."
Saltpeter dissolves in water and absorbs a large amount of heat.
Duhe used this principle to make popsicles.
Although the conditions were simple, Du He succeeded in the first attempt.
The people around him were all stunned.
Originally, this ice would only appear in winter. Unexpectedly, in this extremely hot summer, it was actually created by Du He?
Everyone didn't even believe their eyes and thought they had seen it wrong.
Seeing this, Li Lizhi licked her lips, ran up to her, took the popsicle from Du He's hand, put it in her mouth, and said inarticulately: "Wow, it's so awesome..."
The huge popsicle formed a sharp contrast with Li Lizhi's small peach mouth.
Du He only had one idea in his mind: big popsicles and little beauties.
Before he could react, Xu Zhengdao and others rushed up. Following Du He's example, everyone picked up a popsicle and started eating happily.
Being able to eat popsicles that are only available in winter in this extremely hot summer is simply a wonderful life experience for many people.
Fortunately, the popsicles made by Du He at that time were relatively crude, and each popsicle was huge. Ordinary people would fill their stomachs after eating one popsicle. Of course, someone like Lu Bu would need more than five popsicles to satisfy him.