Tang Yihuai and others met in the conference room to discuss the new computing network.
Fu Shuo came to Shuicheng. After inquiring, I found the conference room where Tang Yihuai, Zhan Guyue and others lived.
Fu Shuo said: "Hello, I am Fu Shuo. You may not know me. I am Fu Zhu's nephew."
Tang Yihuai raised his head, held up his glasses, looked at the young man in front of him carefully, and said, "Oh. I am quite familiar with Fu Zhu. Are you here this time to study this digital network together?"
Fu Shuo said: "Compared with you, I only know a little bit about it. I came here to learn."
After the meeting in the morning, Fu Shuo asked Zhan Guyue and Dong Chu if they knew how to simulate water flow.
Zhan Guyue said: "Speaking of water flow simulation, we still have to see why the water flow next to the electronics factory changes its direction."
Fu Shuo said, "Is there such a thing?"
Zhan Guyue said: "Looking downstream from the big river in Shuicheng, there are two small rivers, a stone river enters the lake, and a meandering river passes through the electronics factory, reaches the purification device, and then flows downstream. Originally, the meandering river and the stone river were the same as well water. The rivers do not interfere with each other. But the water in the Bend River actually flows upstream. Then it enters the lake, causing pollution."
Fu Shuo said, "Then let's go and have a look together."
Tang Yihuai said: "Okay, you take him to the lake to see."
They were talking in the car.
Fu Shuo said, "Is it controlled by something external?"
Zhan Guyue said: "Do you know why this water flow can be controlled in a local area?"
Fu Shuo thought about it and said, "I don't know. Is this electrowetting technology?"
Electrowetting technology refers to applying voltage between the upper and lower substrates to change the wettability of the droplets on the underlying solid structure (usually a strongly hydrophobic material), that is, changing the contact angle, causing the droplets to deform and The phenomenon of displacement. Wetting refers to the process in which one fluid on a solid surface is replaced by another fluid. Liquid can spread on the solid surface, and the solid-liquid contact surface tends to expand. That is, the adhesion of the liquid to the solid surface is greater than its cohesion, which is wetting. The liquid cannot spread on the solid surface, and the contact surface has a tendency to shrink into a spherical shape, which is non-wetting. Non-wetting means that the adhesion force of the liquid to the solid surface is less than its cohesive force.
Zhan Guyue said: "It doesn't look like it, I didn't see the power supply."
Dong Chu said: "Is it some illusion? Some illusions seem to violate the principle of gravity."
Objects seem to stay in the air: When an object is thrown, it can stay in the air as if it were not affected by gravity. Effectively, this is because the object's forward momentum keeps it in motion, and the curvature of the Earth keeps it on the Earth's surface.
Human beings seem to be able to walk freely in the sky: astronauts wearing space suits seem to be walking freely in space. But in reality, astronauts can only move on a spacecraft or space station because there is no ground or support in space and they have no gravity to rely on.
Objects can appear to remain stationary in satellite orbits: When we see a satellite stationary in the distance, it seems to remain stationary under the mutual balance of gravity and centrifugal force. In fact, this is because the satellite rotates at the same speed as the Earth, so that it appears to remain in a relatively stationary position.
Objects appear to be ejected more easily in certain locations on Earth: Objects appear to be ejected more easily in certain locations, such as near the equator, because the centrifugal force generated by the Earth's rotation reduces the effect of gravity. But in reality, gravity is still present at these locations, but their influence is slightly reduced.
Fu Shuo said: "I've heard of the phenomenon of strange slopes on Wenzeng Road, where things roll from the bottom to the top of the slope."
Some surveyors went to the site of the "strange slope" on Wenzeng Road to measure the "strange slope". The surveyors measured every 5 meters, for a total of 70 meters. The results confirmed that the so-called "slope bottom" is actually 1.395 meters higher than the "slope top", with a slope of 2%. The surveyors concluded that the "strange slope" is actually a visual error caused by people's surrounding reference objects.
The strange slope of Wenzeng Road is located near the intersection. From here, the upper slope is higher and the lower slope is lower. The combination of the two looks like the road is uphill. Scientific measurement data proves that the "strange slope" is not strange at all. It is my own eyes that deceive me.
For large roads with very large slopes, the angle between a person and the road surface should be greater than or equal to 90°, and the angle between a person and a strange slope is a smaller acute angle. People will subconsciously understand that the plane they are standing on is a horizontal plane, and then conclude that the strange slope is a horizontal plane. The slope should be upward. But in fact, the strange slope is just a downward slope with a smaller slope compared to the main highway. It can be concluded that the strange slope is just an illusion caused by the reference object.
Fu Shuo said, "Maybe the water flow here is an illusion?"
They arrived at the lake, took out the angle instrument, and actually measured the water flow upstream and downstream. They found that the water flow downstream was 15 degrees lower. The water does flow upward and back.
Zhan Guyue said: "I have been wondering if there is any special device that affects these water flows."
Dong Chu said: "Then continue searching around here."
They were looking around here. On the banks, in the river.
Walking along the river, I found a cylindrical stone under the river edge.
Zhan Guyue said: "I remembered, this may be an electric distribution stone. Or it is called a water distribution stone."
In the energized state, water flow conducts electricity and is itself a conductor. Under the influence of the water distribution stone, the water flow is also affected.
Rivers carry many things downstream.
water and sediment. Rocks and stones. Plant remnants such as branches and leaves. Plastic bottles, garbage, paper and other garbage. dead animals. River bottom plants, fish in rivers and other organisms. Pollutants such as sewage and industrial wastewater. Agricultural pollutants such as agricultural fertilizers and pesticides.
These substances may have varying degrees of impact and harm on rivers and downstream environments.
Dong Chu said: "Then, where does this water-distributed stone come from?"
Fu Shuo said, "Did you bring it here from upstream?"
Zhan Guyue said: "The upper reaches is Teng River."
Dong Chu said, "If there is such a thing in the Teng River, what would anyone want to do in the Teng River?"
Fu Shuo said: "I think so, it may be flood control. If the flow of the river passes through the center of urban or agricultural land, it may cause floods and floods. By changing the flow of the river, the risk of floods and floods can be reduced and people protected. safety of life and property.”
Zhanguyue said: "What I think of is water resource utilization and environmental protection. Changing the flow of rivers can make better use of water resources, such as introducing rivers into irrigation systems, industrial water and urban water supply systems. This can improve the efficiency of water resources. Utilization efficiency. If the flow direction of the river passes through the pollution source, it may cause pollution to the environment. By changing the flow direction of the river, the river can be prevented from passing through the pollution source, thereby reducing environmental pollution."
Dong Chu said: "It may be a construction project. Changing the flow direction of the river can provide better conditions for certain construction projects, such as the construction of reservoirs, hydropower stations, ports and canals, etc."
