Once Kong Yuzhen made up his mind, he acted quickly.
Within a week, he sent a batch of samples to Li Wenjun.
Li Wenjun handed it to Tao Guangming to be shipped away with the wig, and then called agents in various African countries to tell them about it and agreed to give feedback every month.
According to the feedback, the blush and lipstick samples are very popular, and some customers come to buy these two when they are not buying wigs. The eyeshadow color is not bright enough.
Africans like brighter colors.
Then Kong Yuzhen immediately went to change it.
Finally, a batch of finished products were made and shipped to Africa. According to Li Wenjun, they were handed over to merchants who sell wigs. Then we asked a relatively famous black actor to take some photos and hang them in airports in various African countries, and they were published in several local magazines.
Although sales have not exploded, they are growing every month. This cosmetics business has successfully launched.
Then Kong Yuzhen started to make skin care products for Africans, such as cleansing oil, focusing on cheap and easy-to-use products, and selling them together with makeup, revitalizing this long-standing domestic product.
Mr. Kong was so excited that he flew from Su City to Wenjun New City to treat Li Wenjun to dinner and thank him.
After dinner, Li Wenjun invited the old man to his office for tea. On the way, he saw a dock being built by the river.
The old man was very keen and asked immediately: "Does Director Li plan to start water transportation here?"
It's not that he looked down on Li Wenjun. For such a small river, even if the gate were to raise this section, the downstream water would still be too shallow.
Li Wenjun smiled: "No, it's just a trial point for the factory's ship products."
Dong Qingjun and the other three stood on the side of the road holding a remote control, and then a semi-new car slowly drove over and stopped in front of them.
Mr. Kong pointed to the car and asked Li Wenjun: "You produce such big toys."
Li Wenjun said: "I don't know much about this. Let me ask."
When Dong Qingjun and others saw Li Wenjun, they said excitedly: "Look, Director Li, a driverless car. We built it in a month."
Because Li Wenjun said that autonomous driving technology has many difficulties, it may take a long time.
And if the driverless technology is mature enough, when electric vehicles are built in the future, driverless technology can also be used to evaluate performance and reduce personnel risks.
So when Dong Qingjun started designing electric vehicles, he began to develop driverless technology.
Li Wenjun secretly held his forehead: Alas...
Self-driving does not mean that there is no one sitting in the car, but it means that there is no human intervention at all.
He said to Dong Qingjun fiercely: "I will come to you to settle the score after I send the guests away."
Dong Qingjun looked confused: What did I do wrong?
Li Wenjun sent Mr. Kong away and drove to the new energy vehicle.
Dong Qingjun and the others are still playing with that large remote control car.
They stopped immediately when they saw Li Wenjun coming.
Dong Qingjun said: "Director Li, is there something wrong with my car?"
Aren’t drones also controlled by remote control?
Li Wenjun said: "It can't be said that it has nothing to do with it, but the loopholes are relatively large."
Dong Qingjun: "Tell me and listen."
Li Wenjun said: "Let me ask you a question. Why do customers want to buy our driverless cars?"
Dong Qingjun scratched his head and said: "Of course it means you don't have to sit in the cab to drive, which saves effort."
Li Wenjun said: "Yeah. So. The remote control car you are building now, do you want customers to sit in the passenger seat and control the car in the back, or do you want customers to drive a separate car and chase it to control the car? Such a car can save customers effort. ?”
It is better to just sit in the cab and drive. In case of emergency, you can respond more quickly.
Dong Qingjun realized the problem and suppressed his blush: "I know."
Li Wenjun said: "In fact, a driverless car is a car-shaped intelligent robot that needs to observe the surrounding sounds and objects without intervention, make judgments and respond correctly. Please contact the computer factory. They have also recently I started to develop robots together with the mechanical automation side. In fact, as long as they are robots, they have many things in common."
The sluice was completed at about the same time as the foundation of the port.
According to Li Wenjun's request, the miter lock gate was made. It is said that this kind of lock was invented by Leonardo da Vinci five hundred years ago and is still in use on the Panama Canal.
However, Li Wenjun changed the manual gate opening to an electric gate opening, and the wooden gate was changed to stainless steel and rubber sealing.
Actually. Everyone feels that the gate opening function is basically useless.
Because this pier is only used to try out the shipyard's products at most.
There will be no boats coming up from downstream.
It is impossible for the products of the shipyard to be transported to customers by water. In the end, they have to be transported by large trucks or trains.
After the concrete curing period has passed, start debugging the gate.
Early in the morning, a row of people squatted under the shade of the trees on the shore to watch the fun, like a row of cormorants squatting on the side of a ship.
They heard that such a large gate does not need electricity when closing, it can be closed by itself, and it does not leak.
How can it be?
Now I watch the gate slowly close automatically under the impact of the water flow, and then the water level slowly rises.
The river that was shallow just now slowly turned into a large pool.
Someone muttered: "I don't understand."
At such times, Dong Qingjun and the three of them are never absent.
Hearing someone ask a question, Dong Qingjun placed his two palms side by side, then moved his arms and slowly moved his fingertips closer to form a "roof" shape. He pointed to the other side of the roof and said: "This is the upstream. The water pressure difference between the upstream and downstream Under the action of the water pressure, the two plates remain closed and sealed. A threshold is made at the bottom to fit tightly with the gate to prevent water from leaking out from the bottom. "
Everyone suddenly realized.
Someone asked: "How about opening the gate? With this pressure difference, how much force does it take to open it?!"
Dong Qingjun smiled: "That requires electricity, but manpower is also available. In fact, there is not that much water pressure when the gate is opened, you will know, I can't tell now."
The man asked again: "When will the gate be opened? I want to come and see."
Dong Qingjun rolled his eyes and calculated: "Subtract the current water level from the water level after the water is full, and you can roughly calculate the water storage volume. Then divide the water storage volume by the current flow rate. It will take at least more than twenty hours."
As soon as he finished speaking, someone from the other side shouted through a loudspeaker: "The reservoir is about to release water. People standing on the river beach, please evacuate within ten minutes. Otherwise, you will be responsible for the consequences."
They shouted for about ten minutes before they stopped. After a while, everyone heard a "rumbling" sound from above, like thunder.
When the huge rolling waves came, mixed with dead trees and other things stranded in the river, everyone realized that it was the sound of a roaring torrent.
Dong Qingjun smacked his lips: "I was careless. I forgot that Director Li can operate the reservoir."
The rainy season is coming, so some water from the reservoir has to be drained.
