As early as the time of the Three Emperors of the Ancient World, the human race had already used stone sickles and mussel sickles, these two things were the prototypes of saws, and some people believe that the person who invented the mussel sickle should be Youchao.

Otherwise, why didn't you have the skills to build a house before the Chao clan, and after the Chao clan, the human race would suddenly build tall wooden houses, and the stone axe alone could not solve the problem of the accuracy of the wooden planks.

Yu Zai stared at the newly created thing, both palms flushed, and the blood boiled for a long time from trying to compress the small flames.

The iron beast squatted here, and Yu Zai hung his brass axe high on the beam of the house, the handle of the axe was downward, and the iron ox squatted there motionless, which was probably the same as fishing for a donkey with a radish.

The reason why Yu Zai didn't let Tie Niu go was because this simple but very easy thing to make needed Tie Niu's help.

Of course, it couldn't have been a mop dung, and the last time he ate it with a large piece of copper, he ended up with only thumb-sized iron, which was very hard, but had no properties, and was apparently unaffected by apotheosis.

Because those were originally inferior copper, compared to the divine copper, it was inferior, and then after the iron bull ate and pulled, although the iron that came out was very strong, it did not have the power of deification.

But it's okay for Yu Zai, as long as it's strong, don't use it, it's fun to have a fire on it.

"What is this?"

Since Dayi came to the Chifang clan, he took on the task of raising chickens, and he had to go out to walk the chickens regularly every day, and now the chickens in the chicken farm have begun to grow up, and the new flock of chickens makes him unable to leave for the time being.

And Uncle Xi and Chi Songzi are now the new followers of Yu Zai.

"It's a new version of the mussel sickle. ”

Yu Zai gestured, probably tried, took a piece of wood, grasped the upper part of the wood with his hand, stepped on the wood he had taken tightly, and then aimed a bar, full of jagged iron, at the piece of wood.

Click-

The iron teeth cut deep marks in the wood!

"It's a 'saw'!"

It worked.

"The iron saw can't be mass-produced, mainly because the iron bull eats so much and pulls out too little......"

However, there were also copper saws during the Warring States period, and the metal strips of copper saws were much thicker than the thin strips of iron saws in later generations.

The hardness is not enough, and the volume is to make up.

"That's a good thing. ”

Uncle Xi took the things handed over by Yu Zai, took the piece of wood and sawed it vigorously.

Akamatsuko watched from the sidelines.

This thing belongs to one of the basic tools necessary for carpentry construction and production, and it tastes better when used with hammers and chisels, and the powerful carpenters of the Warring States period, it is no exaggeration to say that only these three things can be used to make all kinds of strange instruments with ghostly technology, among which the representative figures are Mozi and Gongyi.

The so-called mortise and tenon method, in fact, has been available at this time, so there are several test models in the trolley, and they are also used on it.

Yu Zai knew about this from his former teammate, of course, the erudite archaeologist who liked to brag.

[The earliest mortise and tenon structure appeared on this land, which can be traced back to the Hemudu period....... In the Hemudu site, a large number of ganji-type mortise and tenon structures have been found. For example, fire convex square tenons, double square tenons, and dovetail tenons...... The Hemudu site discovered in 1973 has a large number of wooden building remains that are ahead of the times, which is completely consistent with the 'sage structure' in the ancient books, so there is also speculation that the Hemudu people are likely to be the people of the Chao clan.....]

The people of Hemudu are 7,000 years away from the afterlife, and 2,800 years away from the present era!

It was about the period from the Five Dragons to the Three Emperors of Taikoo!

"In this way, the Chao clan is the ancestor of carpentry.....

There is a nest clan is the head of the five ancient clans, the Three Emperors Ji Shudao, he built a wood for the nest room, and attacked the leaves for clothes.

Uncle Xi saw this square thing, this is the so-called rice bucket.

But not yet.

Uncle Xi knew that this thing was just a tool for multiplying things, and it was essentially no different from clay pots, wooden barrels, bamboo cups, and baskets, but it was relatively small, and the wood was not easy to damage, and it was both strong and durable.

There are also "liters", "zygotes", and "spoons" on the side of the rice bucket, but the spoon is nothing new.

The shape is a square table shape with a large top and a small bottom, which is a tool that is four trapezoids and a square plank, and then spliced together with the tenon and tenon of the gladiator, which is smaller than the bucket.

"Ten liters equals one bucket. ”

Yu Zai just asked Yu Liang to make this thing, saying that when it was time for a bumper harvest, everyone would have a good distribution to eat, Uncle Xi knew that there were a lot of things, and there was no technical content, so after reading it, he felt that he should get one when he went back.

"The whole point of this thing is to unify the measurements. ”

Uncle Xi is very familiar with spoons.

Whether it is the development of a new unit of measurement, is about weight, or about the length, of course, these are for the existing "zhang", "stone", "jun", "foot", "仞", "she", "find" and other units are more refined, of course, the Central Plains for these detailed units, also have their own niche name, the original emperor Fangxun wanted to implement a new small unit, but because the people said that it was too troublesome, it was a headache to hear, so it was temporarily abandoned.

Uncle Xi picked up another thing and stretched it out, just like the lotus leaf he was holding when he came.

Uncle Xi fiddled with it very novelly, and screamed twice.

"Is this an improved helium?"

The helium is the oldest umbrella, and it was originally just a hat with a handle, so it could not be folded and put away. Uncle Xi himself has a lot of this thing, because it is rainy in the south, so that Uncle Xi is bored and plays the game of collecting "glue", and his obsession is probably about the same as that of a philatelist.

And the most powerful "禦" is probably Qin Shi Huang's, Qin Shi Huang's one, I don't know if it was stimulated by an assassin who didn't wear pants, or a certain infatuated person who was waiting in Bolangsha...... The head of the parachute and the paratrooper can be separated, although it cannot be folded, but when the head and handle are separated, the paratrooper becomes a spear, and the parachute head becomes a shield......

"This is good, this is good, can I buy one?"

Uncle Xi knows his status and belongs to the guest, but he is just a temporary residence, and he can't ask for it from others, so he must exchange it at an equal price, but Yu Zai waved his hand: "You are too outsider in the sheep season, we are all a family, you can open your mouth if you want this thing, anyway, there will be more when you go back." ”

"But I'm going to give this thing to Yu Liang first, and let him take notes. ”

The reason why the umbrella surface can be folded is because it is actually made of the skin of the old turtle.

After the old turtle died, the purple material exploded all over the ground, what tortoise shell, tortoise skin, tortoise meat, gutoise tail tortoise viscera.... In short, there are a bunch of useful ones, and there are useless ones, but in general, the useless ones can be fed to the dragon, and Yu Zai even prepared some small meat marinated in salted soil, ready to go to Daze to talk to the old turtle.