The efficiency of water extraction by drum trucks for irrigation can be hundreds or ten times better than that of rollover trucks.
The main reason is that the barrel cart does not use human power or animal power, but uses the kinetic energy of water.
It works day and night and makes noise all night long.
However, the efficiency of the bobbin truck is very low.
In this regard, the rollover is much better than the bobbin truck, especially when using cattle to pull it, it is more obvious.
However, both of these tools have absolute disadvantages, that is, they require a river or flowing pond to be used.
If it is agriculture to dig wells, then people can only pull them with oxen.
However, Ma Chao made a rough estimate.
If the entire farmland with rivers flowing through Yongzhou used rollovers and barrel trucks to collect water, then the fertile farmland in Yongzhou could be increased to about one-tenth.
After all, the tributaries of the Wei River and Yong River are all over Yongzhou and are used to irrigate farmland, which is too sufficient.
Such a large project, in addition to manufacturing countless rollovers and barrel trucks, also requires large amounts of financial support and countless manpower for construction.
In Ma Chao's expectation, the construction model of Fufeng River can be used for water conservancy construction throughout Yongzhou.
However, as a result, the establishment of the Ministry of Industry became increasingly urgent.
Of course, there is still a prerequisite, which is whether Zhou Maitian can build a barrel cart.
"The water rotary cart is made of bamboo or wood.
First make a large vertical wheel, and then use a log to make a roller to set it up.
Dozens of skeletons are installed on the roller to support and connect.
Well, around the round wheel It is also equipped with wooden impellers and many large hollow, inclined bamboo tubes.
There is a wheel on the upper and lower wheels.
The lower wheel is half submerged in the water, and there are wheel belts between the two wheels. " "What is a wheel belt?"
Zhou Maitian was already immersed in imagining the facade as he listened to Ma Chao's explanation.
However, he still seemed confused when he heard some unfamiliar and difficult words popping out of Ma Chao's mouth from time to time.
"It's a chain drive made of leather, used to pull the big vertical wheel."
Ma Chao frowned and recalled the manufacturing method of the bobbin wheel he learned in the book, stumbling and said: "There are also many rulers on the wheel belt.
The bamboo tube is filled with water when the flowing water hits the water wheel below, and the river water is carried up to the top and poured out. " "Without human or animal power, the vertical wheel can be rotated continuously for a long time by the force of water flow."
Zheng Hun is also a descendant of Lu Ban's disciples.
After hearing Ma Chao's description, he still felt a little incredible.
Ma Chao was having a headache how to explain the relationship between kinetic energy conversion to them, but he heard Zhou Maitian say: "Hewing wood is a machine, the back is heavy and the front is light, and the water is like pumping, and the numbers are like fertile soup, and its name is 槧" "It's almost the same as Jukai.
However, Jukai uses the principle of leverage, while the trolley uses the power of water flow instead of manpower.
Although it is not efficient, it can cycle day and night."
After listening to Zhou Maitian's words, Ma Chaozhou knew that Zhou Maitian The wheat field is said to be an allusion to orange trees getting water.
However, there is a huge difference between the jumei and the tube cart.
They are not the same tool at all.
In desperation, I planned to draw a drawing of the barrel truck.
But when he looked back and saw Zheng Hun and Zhou Maitian, he smiled: with these two master carpenters here, it would be much more intuitive to make a drum car model directly from any drawings.
He did as he was told, and immediately Ma Chao asked the two of them to find a piece of log and use their incredible craftsmanship to carve out a big wheel.
Then some small bamboo tubes were installed on the runner so that the mouth of the tube faced the direction of the runner.
At the same time, Ma Chao deliberately made the bamboo tubes and the axis of the tube truck at an angle of about 45 degrees in order to allow the tube truck to tilt to the side of the tube truck when pouring water and introduce the position of the water trough.
Ordinarily, by this point, the model is basically complete.
When Zheng Hun and Zhou Maitian were in the open space, using a basin to simulate the flow of a river, Ma Chao suddenly felt a little panic: When he was in school, this guy was a master with high ambitions and low hands, and his hands-on ability was extremely poor.
After going through so much trouble this time in front of the two masters, it would be extremely embarrassing if we found out that the model could not rotate.
What's more, the entire arsenal worshiped Ma Chao like a deity.
Although Ma Chao didn't have much vanity, he definitely still had some shame.
Finally, with the expectant eyes of the two of them, Ma Chao bit the bullet and took the cart model.
Put it into the dug path, and Zhou Maitian slowly pours water aside.
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The sky opens its eyes This bobbin cart model is not a century-old project, and Zheng Hun and Zhou Maitian are top carpenters.
They followed Ma Chao's instructions completely when helping, and they definitely met the qualified standards.
The two of them watched intently as the cart model spun automatically.
They were so surprised that they couldn't even close their mouths.
"Lord, are you borrowing the power of ghosts and gods?"
Zheng Hun looked at it and swayed back and forth.
Finally, he looked at the windless weather and finally admitted that the model really rotated automatically by relying on the water flow.
After heaving a sigh of relief, Ma Chao pretended to have unfathomable virtues and said: "It's not the power of ghosts and gods, but all things are powerful, and the best is like water.
It should be noted that this water flows day and night, and it also relies on the power of mountains and rivers.
So and so Even though he is the spirit of all things, he still cannot explore the mysteries of all things as much as possible.”
But Zhou Maitian fell into it at this time.
He changed the intensity of pouring water for a while, and then changed the height of the cart.
After testing back and forth several times, he said: "Lord, my subordinates discovered that this cart It doesn’t mean that it can rotate as long as there is water, but it is related to the strength of the water flow and the height of the placement.”
"Yes, the drum cart rotates too slowly or cannot lift the water.
You need to install some wooden boards or bamboo boards on the drum truck to facilitate the drum truck to obtain more kinetic energy from the water; or you can also immerse the drum truck deeper in the water to obtain more energy.
Kinetic energy, thus, more water can be stored."
At this point, Ma Chao stopped feeling embarrassed: These things are all written in the textbook.
Although his hands-on ability is poor, his memory is very good. of.
"When the speed of the water flow is low, the bamboo tube must be relatively small.
Otherwise, the energy the tube car can obtain from the water is limited and it will not be enough to overcome the reaction moment of the lifted water on the tube vehicle.
As long as there is a prior understanding of the rivers and lakes in Yongzhou After investigating, knowing their speed and power, and doing more experiments, we can make a truly usable barrel cart."
"My lord is really a god."
Zhou Maitian showed signs of madness again at this time.
He threw down the water basin and ran to Ma Chao and said: "If there are rollovers, barrel trucks, and oranges in the whole Yongzhou, then within two years, the entire Yongzhou will...
It can become the richest state in the Han Dynasty."
But Ma Chao smiled, looked at Zhou Maitian and Zheng Hun and said: "You two, do you just want to benefit Yongzhou?
Please know that this product can not only be used in Yongzhou, but also in Soochow, where Heze is densely populated, and even the entire Han Dynasty has water.
It can be used in any place.
You two don’t want this overturned cart to become the most beautiful scene in the Han Dynasty.”
Zheng Hun and Zhou Maitian looked at each other and said in admiration: "My lord has the world in his heart, I can't wait any longer."
At this moment, when Ma Chao looked at the cart model, he suddenly thought that there seemed to be many farming tools in the textbook that could be used.
If this is the case, and next year his new crops will be extended to Fufeng and even the entire Yongzhou, how can there be any more people in the Han Dynasty starving to death?
At this moment, although Ma Chao was not on the battlefield, his heart was filled with fighting spirit.
It seems that the countless acres of farmland in Yongzhou are the enemies he wants to conquer. s: Thanks again to Jinshi, Dandu, and Master Pan for your tips.
Tomorrow is Mu Yuanfeng’s wedding.
Let’s get going tomorrow: