In Iron Ox , it is said that a heavy object falling into the river is going upstream, why?

Under the combined action of the depression on the upstream side of the object and the compression on the downstream side of the objectThe center of gravity rolls toward the depression, moving upstream.

During the Ming Dynasty, the torrential rain in a county in the north lasted for more than 20 days, and the river water was sharply **, and the people on both sides of the river were panicked, and they ran rampant to Li and escaped. A month later, the flood slowly receded, people went home again and again, on this day, as soon as the county magistrate Zhang got up, the master hurriedly ran to him, "Master, the iron ox by the river was washed away by the flood," the county magistrate Zhang hurried to the river with the master and a group of officials, but found an iron bull lying alone on the bank, an iron bull fell into the river, and the county magistrate Zhang was anxious.

He said to his master: "First send someone to find out the location of the iron ox in the river, and then find more people and boats to salvage," three days later, the people in the river did not get anything, and the county magistrate Zhang was even more anxious: this 10,000 catties of iron oxen could not be stolen.

Where will it flow from, at this time there is a Taoist priest who said that the falling bull can be found. The Taoist priest led a group of people to the place where the iron oxen were placed by the river, and he pointed to a place 50 meters away from the river and said, "My lord, send someone to look for it in the river," Zhang Xianling looked at the Taoist priest suspiciously, "above the river," hesitated to settle down, and said:

Do as the Taoist says. ”

After a while, several officials who knew how to water had already entered the water according to the instructions of the Taoist chief, only to see a few splashes on the surface of the water, and someone came out of the water and said, "Sir, the iron bull has been found," and the Taoist chief said that he was just paying attention to the things around him in his daily life. It can be seen that the river is a quicksand river, and the water flows very fast, so the iron ox will not fall into the mud and sand when it rushes into the river.

The flow of the river will empty the sand in front of the Iron Ox, and if the Iron Ox lies unsteadily in the hole in front of it, the scene ahead will happen again. After a few days of water erosion, it naturally flows upstream. Based on the speed of the flow, I calculate the position of the Iron Bull.

This thing is too heavy for the current to flow downstream, and the current will wash away the sand and push the iron ox upwards in a different direction.

Because something that is particularly heavy will not be carried away by the water, the friction between it and the sand will cause it to go upward.

Because there is friction between it and the sand, the sand moves downwards to promote the upward movement of the weight.

Because of the buoyancy of water, this kind of thing happens to very heavy things.

Heavy things float in the water, and the reason for going upstream is the friction with the sand.

The Iron Ox is very heavy and does not float in the water when it falls into the water, so it does not go downstream.

It should be a physical reaction, and the dynasty at that time did not have the current science.

Anyone will do it, you think it's rain, and you go straight home upstream.

In "Fishing for Iron Bull", it is said that a heavy object falling into the river is going upstream, you are talking nonsense.

Hello! Salvage iron cattle.

Original. The floating beam of the Song River Zhongfu is made of iron oxen in eight dimensions, and a cow is tens of thousands of catties. In the midst of peace, the water storm is in full swing, and the cow is not in the river, and those who can come out are recruited.

Zhending monk Huaibing used two large boats to solidify the soil, clamped the oxen to protect it, and used the big wood as a trade-off to hook the ox, Xu removed the soil, and the boat floated out of the ox. The transfer made Zhang Tao smell it and gave him purple clothes.

Exegesis. Floating beams: pontoons.

Dimension: Tie, link.

Zhiping: The era name of Zhao Shu of Yingzong of the Northern Song Dynasty.

Zhending: But today Hebei Zhengding.

Trade-off: the hammer is weighing the old and the rod is early.

6.Xu: Slowly.

7.Fundraising: Hiring; Recruit.

8.A cow and tens of thousands of catties (and: reached).

9.Translation: Use a large wood as a trade-off hooked cow.

A hook made of wood in the shape of a scale rod was used to lift the iron ox.

10.No: Sunk.

11.Purple clothes: Your official uniform.

12.Real: Full.

Translation. In the Song Dynasty, there was a pontoon bridge in Hezhongfu, and eight iron oxen were used to fix it, and an iron ox weighed nearly tens of thousands of pounds. During the reign of Emperor Yingzong of the Song Dynasty, the flood surged and broke the pontoon bridge, causing the iron ox to sink to the bottom of the river, and widely recruited people who could salvage the iron ox.

There must have been a monk named Huai Bing, who filled two big boats with earth and stones to sink the boat to the bottom of the water, tied the iron ox to the crossbar between the two big boats with a rope, and lifted the iron ox with the buoyancy of the water, and slowly removed the earth and stones on the boat, the boat surfaced, and the iron ox was salvaged. Zhang Tao reported the matter to the imperial court, and the emperor gave Monk Huaibing a purple robe.

Scooping up the iron ox in the water uses the buoyancy of the boat.

The text tells the story of the Song Dynasty monk Huaibing who used the buoyancy of water to salvage eight iron oxen trapped in the silt at the bottom of the river, reflecting the achievements of science and technology in ancient China and the wisdom and wisdom of the working people.

It was the use of the buoyancy of Ding Shui to praise Huai Bing's extraordinary observation.

Salvage iron cattle.

The floating beam of the Song River Zhongfu is made of iron oxen in eight dimensions, and a cow is tens of thousands of catties. In the peace, the water soared and the beams were overwhelmed, and the cattle were not in the river, and those who could be recruited were raised. Zhending monk Huaibing used two large boats to solidify the soil, clamped the oxen to protect it, and used the big wood as a trade-off to hook the ox, Xu removed the soil, and the boat floated out of the ox.

The transfer made Zhang Tao smell it and gave him purple clothes.

Notes:1Floating beams:

Pontoon. 2.Dimension:

Tie, link. 3.Zhiping:

The era name of Zhao Shu of Yingzong of the Northern Song Dynasty. 4.Really determined:

But today Hebei Zhengding. 5.Trade-offs:

Weighing hammer and rod. 1. Explain the meaning of the following braille words.

1) A cow and tens of thousands of catties.

2) Those who can recruit talents.

3) Xu goes to the soil.

4) Zhending monk Huai Bing with two big boats solid land.

2. Translation: Use the big wood as a trade-off hook cow, Xu goes to its soil, and the boat floats out of the cow.

3. Explain how Monk Huai Bing salvaged the iron ox from the river?

1. Near; Make ......Go out; Slowly; Fill it up and fill it up.

2. The horizontal log is like a weighing rod and a hammer weighing things, hooking the iron ox and slowly removing the soil from the boat, so the boat floats up, and the iron ox is also hooked out.

3. First fill two boats with soil, tie the iron ox to the horizontal log between the two boats, and then remove the soil on the boat, and the iron ox will float out.

That's it! Extra points).

1) A cow and tens of thousands of catties.

2) Those who can recruit talents.

3) Xu goes to the soil.

4) Zhending monk Huai Bing with two big boats solid land.

2. Translation: Use the big wood as a trade-off hook cow, Xu goes to its soil, and the boat floats out of the cow.

3. Explain how Monk Huai Bing salvaged the iron ox from the river?

When we were children, we all learned the article "Fishing Iron Ox", the reason why the Iron Ox went up in the river was because the Iron Ox was too heavy and the water flow could not be washed away, but the water flow could wash away the sand under the Iron Ox, and when the sand was washed away, a depression would form above the Iron Ox, and the bulky Iron Ox would roll towards the depressionIn fact, in real life, as long as you pay attention to observation, it is not difficult to find this truth.

First of all, let's review this article, according to legend, in ancient times, there was a heavy rain for a few days and nights in a certain county, and a big flood was launched in the river, and the iron ox on the bridge was washed away. Wait until the rain stopsPeople have been salvaging in situ for a long time but have not found any trace of the iron bull, and there is no trace of the iron bull even in the lower reaches of the entire river, so what did the iron bull go?

Just when everyone was at a loss, an old monk stood up and said that everyone might as well go upstream to find one, and they will definitely find it。At first, many people didn't understand, but they just went upstream to find it according to what the old monk said, and they really found an iron ox sunk at the bottom of the river, so they came down and fished it up. So someone asked the old monk why it ran upstream by itself instead of being washed away by the water of something as heavy as the iron ox, and the old monk explained it to everyone.

It turns out that there are hundreds of kilograms of the iron ox, and after sinking to the bottom of the river, due to the resistance of the iron ox, the water flow can only carry away the sediment under the iron ox, and after many times of washing, the sediment will be taken away and a sand pit will be formed. The Iron Bull will roll down to the sand pit upstream. The cycle repeated, and over time, the Iron Bull moved upwards relative to its position.

But at that time, only the old monk understood this truth, so he could tell people that the iron ox was found in the upper reaches of the river.

In the middle of the iron ox, the heavy object fell into the river, and the river water hit the lower part of the heavy object, causing the quicksand to go away, and the heavy object fell forward, so that the heavy object went to the upper reaches of the river.

The iron ox weighed hundreds of kilograms and sank to the bottom of the water filled with silt, and the river could not wash it away. But it can wash away the mud and sand under the iron ox little by little. When the sediment cannot withstand the iron ox and a sand pit is formed, the iron ox will fall in the opposite direction of the water flow, and so on repeatedly, the iron ox will appear upstream.

This is because although the river water cannot wash away the iron ox, it can wash away the sediment under the iron ox little by little, the iron ox is very heavy, when the sediment below can no longer bear the weight of the iron ox, forming a sand pit, the iron ox will fall in the opposite direction to the water, so it will go upstream.

Unreliable. Because if a heavy object falls into the river, it may sink directly to the bottom of the river, and the water flows downstream, even if it flows.

This is true, because the weight of the heavy object causes the sediment below to form a sand pit, and the weight will fall to the opposite place of the water, and so on and so on, and the cycle will go upstream.

Reliable. Because the water has been hitting the heavy object, it causes the front to collapse, and over time, it goes upstream.

Reliable, because the heavy object is heavy, the water will wash away the sediment under the heavy object to form a pit, and when the pit is formed, the heavy object will fall into the pit, and the cycle will go upstream.

On average, each bull weighs hundreds of kilograms, and the river will certainly not be able to wash it away when it sinks to the bottom of the water filled with silt. However, the river can't wash away the iron ox, but it can wash away the sediment under the iron ox little by little. The Iron Ox is heavy, and when the sediment below can no longer bear the weight of the Iron Ox, forming a sand pit, the Iron Ox will fall in the opposite direction to the water.

As the boat gets lighter, it floats upward, driving the Iron Ox upward, and the sediment fills the bunker that appears after the Iron Ox leaves.

Heavy, such a heavy iron ox sank to the bottom of the water filled with silt, and the river would certainly not be able to wash it away directly. But the river can't wash away the iron ox, but it can.

It is just a matter of course to say that the Iron Bull will move its weight upstream, and there is no scientific basis or experimental results to support it. The biggest possibility is to sink into the sediment. This kind of attitude is the enemy of knowledge-seeking, harming others and oneself.

I don't think that's the case in reality, it's obviously going downstream.

Above the sunken ox, two boats filled with mud and sand were parked. Then use a series of ropes to secure the iron ox and the boat, and then slowly start shoveling the mud and sand from the boat into the river.