Since that day, the sound of squeaking wheels has begun to echo through the wheat fields, singing another soft sound, like the spring chirping of a wild cat at night, tickling the hearts of those who tickle. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

The children can't put down the newly acquired toys, they are still young, and they can't hear the rhythm of the squeaky sound that stirs people's hearts, and Chen Jian will always hide far away.

Yu Qian'er would always lead the ox cart with cold, honey-melted water that had just been poured from the stream to bring to the people who were still working in the fields.

Whenever the tribesmen came back from fishing or hunting, she was always happiest, and she drove the cart to it, put the baskets of fish and game on the cart, let the tribesmen sit aside, and gently flick the whip, so that the diligent oxen could bring the harvest back to the village.

Children's best toys always like to be shown to others, hoping that others will share their happiness.

For her, she was still a child when she was on an ox cart.

When I got out of the ox cart and went back to the hall of the council to count how many fish I had collected and how many birds I had caught today, I was no longer a child.

All the things in the village that needed to be counted and distributed were all on her, and she knew what her brother was busy with, so she didn't bother, but secretly sighed that she couldn't help.

It's business as usual in the village, and the riders who are heading east along the river have been gone for ten days, and they haven't returned, but they're coming soon.

The men of the clan stopped all their work except fishing and hunting, and were preparing for the first harvest.

Now the wheat has turned a little yellow, the pea flowers have bloomed to the top, and I have eaten the pea pods boiled in salt water for dinner, which tastes good, but it is worse than wheat rice.

Looking at the yellowed wheat rice and recalling the taste of a few months ago, Jian Chen took them to the end of their hustle and bustle.

The meteorite weapons captured in the last victory were all used to make agricultural tools or nails, etc., and under the immature iron-smelting technology, there is no advantage in using them as weapons and bronze, but it is much better to make agricultural tools than bronze that is easy to break.

Scythes, chisels, saws, hoes, sledgehammers...... More than sixty men were busy in front of the charcoal stove every day, and the building was ugly, but at least it was more than stone.

After watching it for two days, Jian Chen took the remaining 100 people to the outside of the village and chose a venue as the future courtyard.

After the wheat is harvested, it takes yards and wind to thresh, and it takes three days to remove weeds and tamp it on a level ground.

Forty men were left, and the rest went back to the storehouse area of the city to build houses, and the harvested wheat and beans could not be stacked outside, and one by one conical granaries rose from the ground.

At this time, the inside is still empty, but it is believed that it will not be long before it will be filled with wheat beans, and there is no need for a woman to go outside to collect them when she wants to eat them, just reach out and grab some.

The women were also preparing for the harvest, weaving sacks out of thick twine, which did not need to be so fine, and each could hold about 200 catties of grain.

The forty people who were following Jian Chen were busy with another thing, and Jian Chen said that after the harvest, he would make a meal that was better than wheat rice, so they began to look forward to it.

Wheat rice is a last resort to eat, there is no stone grinding, the wheat can not be peeled, and it can only be crushed and steamed, the coarse bran is actually difficult to swallow, but it is more fine than the food eaten before.

Stone grinding is not difficult, there are chisels, hammers, rope cuts, and it is only a matter of time before you get a stone mill.

The difficulty is the power of the stone mill, and the few donkeys exchanged may not be enough, and when the wheat is ripe, the entire city has a population of nearly 2,000, and it is of course not possible to rely on a few little donkeys who are blindfolded to turn in circles, the speed is too slow.

When Jian Chen thinks of the stone mill, he naturally thinks of the mill, and when he thinks of the mill, he naturally thinks of the windmill.

It's not the kind of horizontal windmill that Dutch business card, the kind of difficulty is too high, and it is fundamentally made at the current level of processing, a helical gear transmission, turning the vertical power into parallel power can make the clan collapse, and the center of gravity is also a big problem.

But in the memory of the previous life, there were also windmills in Huaxia, and they were completely different from that kind of windmills, with a strong Chinese style windmill.

Chen Jian remembers the scene in the old movie "The Story of Liubao", as well as the popular episode "Ninety-Nine Sunny Days", the squeaky windmill, as the comparison of the whole song, runs through the whole song.

This windmill was once located in the land of northern Jiangsu and the Changlu salt field, and before the death of the Ming Dynasty, it made a deep impression on the Dutch who came by boat.

The Dutch once thought that there was only one kind of windmill in the world, the kind of windmill surrounded by tulips that turned into a landscape, until they set foot on the land of the East, they realized that there was more than that.

The windmill is vertical, similar to a marquee or top, and rotates parallel to the ground rather than perpendicular to it, eliminating the need for a helical gear steering.

More importantly, there is no need to adjust the angle of the windmill, from the top down is a rice word, no matter which direction the wind blows, it can rotate, and the speed can also be adjusted by raising and lowering the sail.

The windmill can not only be used as the power of stone grinding, but also can be used to lift water, irrigation, and blow air in the future.

Since it is to push the stone mill, the power does not need to be too large, it is enough to have one horsepower, and the first windmill does not need to be too big.

The location of the windmill must be on the cliff to the east of the city, where the wind is just right, and the windmill is used as power, making a simple roller winch, which can lift the wheat from the bottom of the mountain to the top of the mountain, and even build a small wharf under the cliff to maximize the advantage of water transportation.

The principle of the vertical shaft windmill is similar to that of a ship's sails, with six or eight sails forming a rice-shaped shape, and when the wind blows the sails, they will rotate.

The vertical shaft can be selected from a log that is large at the top and small at the bottom to form a T-shape, of course, this T-shaped head is much smaller.

The bottom of the T-shaped head passes through the hole, and the T-shaped head is stuck on it, and the sail is installed in the lower part of the T-shaped log, so that when it rotates, there is the upper T-shaped support, and the whole vertical shaft is suspended, and the wooden gear transmission can be installed below.

The support frame can only be fixed with wood, which can ensure that it will not be blown over by the wind.

Overall, it can be seen as a flat wheel, with the axle standing upright.

It is not difficult to understand that there is a potter's wheel and a wheel as the basis, or it can be seen as a potter's wheel that is not driven by a belt, but is driven by the wind.

After drawing a construction diagram on the bark of the tree, Chen Jian led the people to the pine forest upstream, and cut down four cedar pines that could not be held by one person and two trees more than a foot thick to use as materials for the support frame.

After putting it on the edge of the cliff along the river, he pulled it to the cliff with a rope, pulled out the bark, dug the pit at the foot of the pillar, put one end into the pit first, and used the method of increasing the height of the bricks to erect four thick cedar pines little by little as the base of the column.

It is like a four-pointed star, with two horizontal on it, crossed with each other, and then fixed with a copper curium and pulled with a rope after carving out the tenon.

More than five meters high, three large cedar pines are intertwined to form a simple frame.

Two thinner cedar pine wires were hung and carved into wooden squares with a saw, which took two full days to complete.

A groove is dug in the middle of the wood cube so that the two pieces of wood can be pressed together after crossing, and they are glued together with fish maw glue to form a cross shape.

A circular hole is dug in the center of the cross, which resembles where the wheels and axles meet.

Lift these two pieces of wood to the top of the four cedar pines and fix them, even if the prototype of the frame is completed, it can fully support the strength of a horse, or even more, it is fine, Chen Jian has rarely seen such a thick cedar pine in his previous life.

During the two days of carving the wood square, the people who did not carve the wood square were not idle, making canvas and sail frames.

The canvas is made of linen, with acorn starch paste and glue paste, which can prevent air leakage.

The sail is not big, more than three meters high, two meters wide, a total of eight sides, Chen Jian estimated that if he didn't do anything else, it should be no problem to push a stone mill.

The trimmed shaft was pulled to the top, passed through the hole in the cross, learned the wheel at the perforation, made a metal card slot, and filled it with grease.

The vertical shaft is about one and a half meters away from the ground, which is suspended, Chen Jian tried it, and one person can push the vertical shaft to rotate, and there is no problem with the wind.

After determining that it could be pushed, the bricks were piled up to raise the height, and the tribesmen installed eight horizontal logs on the top and bottom of the vertical shaft as a place to hang the sails.

Calculated, the eight-sided sail basically has three sides of the force at all times, that is, nearly twenty square meters, the air density is about one kilogram per cubic meter, the moment of the sail is about four or five meters, if the radius of the transmission wooden gear below is half a meter, only three or four winds, about six meters of wind speed, enough to produce 1,500 kilograms of force on the wooden gear.

Counting half of the loss, there is also a thousand catties of power, and it never stops, and the speed is extremely fast, which is enough for grinding flour.