A few days later, Eyue finally prepared the gifts, and sent some of her clansmen to carry the gifts and follow the riders to Chen Jian's city. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

The two most powerful tribes within three hundred miles of the Grass River finally began their first exchange.

Eyue's favorite wife also went with her, and in the era when male power had not completely suppressed women's power, the woman in charge of divination was a very high-status existence in the tribe.

This is an attitude of importance, and it is also to better understand Jian Chen's tribe.

The woman wanted to see Jian Chen's frowning and contemplative expression when he saw the nine-number chart, and she also wanted Jian Chen to ask her how the dial of the watch was used. Of course, you might also be able to ask what the star-stained piece of wood is for.

Chen Jian, who was 300 miles away, did not know the specifications of this return visit.

He has been anxious for the past few days, and his younger siblings have followed him every day to let him fulfill his original promise.

These children weighed, and the accuracy of the first scale was about the same, and the surface was coated with grease and pine resin to prevent water, although it was a gourd painted in the same way, it may have been made at this level far beyond Chen Jian's expectations.

Children are the future, so Chen Jian can only learn from Zengzi to kill Biao.

He promised his younger siblings that if they made a scale, he would give them something very interesting.

Now the only thing that can stop these children is the wheel, and the metal tools have appeared, and it is not impossible to make the wheel.

It's just that when I actually started it, I realized that no wonder this thing was an invention that changed the history of the world, and no wonder that many races didn't point out this technology for thousands of years, and it was too difficult to do.

If planting is the sprout of civilization, then metal, wheels and wells are the buds of civilization, and with these three things, the seeds of civilization can be spread throughout the world.

Needless to say, the meaning of metal is that wells make places where there are no rivers a place to live in.

The meaning of the wheel is not only a means of transportation, but also the ability for human beings to leave the river bank and reclaim the land away from the river bank.

The purpose of the land is to accumulate the grain in its own storehouse, not to rot in the ground.

Without wheels, the only way to get food back was rivers and boats.

It's the same with a war, there are no wheels, the range of the expedition is only 300 miles, and no matter how far it is, the food supply cannot keep up, unless it is by the river.

It can be said that without wheels, a world that makes sense to humans is where there is a river.

Whether it was to fulfill his previous promise, or for his tribe to be a truly 200-mile square country, rather than a 200-mile line along a river, he had to get the wheels out.

For the understanding of ancient wheels, Chen Jian only stayed at the point of the wooden straight rope and the wheel, so he knew that the wheel should be made of bent wood.

If you don't splic, you can use logs to see it directly when the wheels are too heavy and can be easily damaged.

When it comes to splicing, it is obvious that there need to be spokes to help the wheels bear weight.

It was obvious that one person could not complete the shape of the wheel, so I found more than 20 people to work together.

Since the wheel is spliced out of arc wood, the first step is to determine the diameter of the wheel and the number of spliced arcs.

Wooden wheels can not be round, should be an irregular circle, if you want to be as round as possible, you need to increase the number of splicing arcs, but the number of splicing is too large and affects the compressive ability of the wheel, so it is best to be six or eight.

A rope of about one meter, two or three was chosen as the diameter of the wheel.

Then fold the rope in half to a radius, draw a circle on the ground, and divide this circle into eight equal parts with a ruler and a ruler.

Using a thin wooden board, carefully cut out the shape of a cut pizza with a sharp arc at the top of the arc. Eight of them were made and distributed among the people.

Then select fresh wood, straighten it with hanging wire and elastic ink line, sawed out a wooden board about half a palm's width thick, soaked it and put it on the fire to roast.

Under the steaming and roasting of the flame, the wood will naturally bend, and the size of the bend is not perfect, which needs to be compensated for by quantity. Dozens, there are always seven or eight that are suitable.

Select some wood that looks almost the same radian, use the good radian ruler to measure, and cut the cut surface to be spliced along the two sides of the arc ruler with a saw, and then trim the arc with a knife to try to be as similar as the radian ruler.

The eight arcs spliced on the outside are the rims, or rims.

Inside, you also need a spokes between the hub and the rim, and the hub is easier, just dig a hole in the middle with a log saw.

Except for those who were repairing the lap, each of the remaining people was given a spoke-length rope and asked them to polish a spoke each.

The connection still depends on the tenon, and the two ends of the spokes are carved out of the tenon, so as to ensure that the length of each spoke is the same as possible.

After waiting for the rim to dry for a few days, Chen Jian and his clan finished the body frame of the car.

This is much simpler, there is no problem with the use of fish bladder glue and tenon, and the axle is also selected with an iron birch without boils, and the width of the rod is based on a cow.

In addition, Chen Jian ordered several geldings to be tied up and several nose rings were beaten with iron.

The cow must wear a nose ring, because the cow is not very obedient, and in most cases it is a child, but once it is crazy, a few people can't pull it.

The nose ring is easy to wear, after tying the cow, touch the softest and thinnest part of the cow's nose with your hand, align it, and pierce it hard, the cow will howl a few times at most, and bleed a few nosebleeds, and then you will get used to it.

After wearing the nose ring, he prepared a harness and a cow holster, the ox relied on the strength of the neck, and the cow harness was a triangular curved wood, stuck on the back of the cow's neck.

The wooden saddle is placed on the back, wrapped around the belly strap, and the gravity of the incoming car must be supported by the wooden saddle on the back. The harness around the cow's neck only provides forward force, which is a more scientific practice that allows the ox cart to pull more things.

Now that the follow-up is ready, all that remains is to wait for the most important wheel.

After a few days, the bent wood was finally dry.

Holes are carved on the connecting surface, and a short wooden stick is used as a double-ended tenon, which is coated with fish bladder glue to glue the two rim arcs together. The length of the double-ended tenon is exactly equal to the length of the two sockets, ensuring the seamless connection of the two arcs.

The last one couldn't use the tenon, so it was directly coated with fish maw glue and stuffed into the last piece of pie that was missing.

Hook and fix it with a hammer, and then wrap a layer of copper on the outside, and the whole rim is completed.

The inner arc of the rim is carved out of the eye, connecting the prepared spokes to the log that serves as the hub. Even if the two simple wheels were completed, it took twenty people and seven days, and Chen Jian looked at the arc that was not too round, and he was still very satisfied.

Although it was rough, the tribe had been preparing for these two wheels for too long.

From metal to fish bladder glue, from rulers to compasses, from slaves to free-duty personnel to weaving nets and fishing, food is plentiful...... Indispensable. After experiencing it firsthand, I know the greatness and wisdom of our ancestors in the past life.

Chen Jian picked up a wheel with emotion and tried it, it was twenty or thirty pounds, which was very heavy.

It is recorded in the "Historical Records" that the **** person Chang Yu was able to put the wheels under and stand up, which won the favor of Zulong's mother. Although the great god Sima Qian didn't have that thing, and it was impossible to practice it, it might be credible.

After being a little jealous, Jian Chen looked at these two wheels and said in his heart that his flesh and blood could stand up and hold it, and this axle should be fine.

At this time, there is no ball bearing, and it can't be done at all, and if you want to make the wheel rotate, you can only dry grind the shaft, and the damage rate is extremely high.

Fortunately, the tribe now had copper and iron, and the axles were covered with thin metal where the wheels were placed, and the sides of the wheels were fixed with wood and iron hooks, which were higher than the diameter of the wheel eyes, to prevent the wheels from running around.

After wrapping, it rubbed against the metal, not the fragile wood, and turned a few times, making a squeaking sound that made people's teeth sore.

Some animal fat was found and applied between the wheels and axles as lubrication. It is said that castor oil and whale oil are excellent natural lubricants, but there is no castor near the tribe, and the tribe has never seen a large lake, let alone a sea.

After being greased, a brand-new cart appeared in front of the clansmen, and found the largest and most obedient gelding, and put on the harness prepared in advance, the gelding had never pulled the cart, and was very unaccustomed to it, and turned around dissatisfiedly, not wanting to put the harness around his neck.

The people of the city rushed to watch, and the children clapped their hands and sat in a swarm on the ox carts.

Chen Jian folded a wicker, just like the car boss in the old movie, sat cross-legged on the pole, whistled, shook off the willow branch, and shouted: "Drive!" ”

The old scalper turned his head and looked at Jian Chen blankly, completely unable to understand what Jian Chen was shouting.

Amid the laughter of the clansmen, Jian Chen jumped out of the car in a gloomy manner, holding the rope tied to the cow's nose, and stepped forward.