Qingyun's surprise was not trivial, and he woke up from his dream with a twitch of his feet.

But it doesn't matter if he kicks this kick, this kick is kicking the shelf that fixes the copper tripod,

The copper tripod shook a few times, and then pressed towards Qingyun.

That's really shocked!

Qingyun's dream of jumping off a cliff is just a matter of kicking his legs,

But if this red-hot copper tripod really smashes on the body,

Then it's just a matter of kicking your legs.

So he rolled up his sleeves and picked up the stove and went to the air to fish for the copper tripod,

Fortunately, he was skilled, and the copper tripod was fished out by him, and it didn't fall far away, but it was smashed on the edge of the furnace.

Yu Zhi flew up and kicked Qingyun on the right side, sending him out,

After a few dodges in a row, he avoided the splashed glass soup.

Although Qingyun woke up at this time, he still looked confused, rolled up from the ground, and shouted,

"I've seen immortals, I've seen immortals!"

Suddenly, I saw the angry face and the mess again, and suddenly lowered my voice like a deflated eggplant,

"I, I really saw the immortals! Not a dream!

I also took a fairy kick just now, and then I flew towards the mountain wall.

You see, this leg and this head still hurt. Oops! ”

Well, doesn't it still hurt?

My heart still hurts!

Xuan Zhi was really angry with him, and secretly glad that his brother was not really hurt by the copper tripod, which was mixed in his heart, and he didn't want to deal with Qingyun at all.

Qingyun has already begun to observe and speculate on the scene of this case,

Suddenly, he was attracted by the small transparent tadpoles in the water.

With a pout, he grabbed one from the water.

When he caught it, he pulled it out with the tadpole's tail,

Unexpectedly, as soon as the tadpole left the water, it exploded with a bang, as if it was a dream bubble formed by water condensation, which made Qingyun tremble.

Seeing this, he also let out an exclamation.

He carefully picked one up from the water, put it on the table, and said to Qingyun,

"Chop off its head, quick!"

Qingyun didn't know what kind of immortal method this was, but he also saw the collapsed shelf and the overturned copper tripod on the ground at this time, and knew that it might have something to do with him.

So he obediently obeyed Twilight's instructions, copied a sword, and slashed at the tadpole's head.

With the experience just now, he knew that under his sword, the transparent tadpole would inevitably shatter into foam again, so he had already made preparations to dodge and dodge.

Unbeknownst to him, the sound of the "bell", this sword was like a stubborn stone, and his arm was numb.

He wanted to twist his body to dodge, but his waist strength was already released, and when he was shocked by this blow, he suddenly stumbled.

When he stabilized his body and leaned in to look, he saw that the tadpole had not moved at all, and he could not even find a single sword mark.

Qingyun was very strange, hurriedly reached out to catch it, and caught the tadpole's tail, but before he could exert much force, he heard a crash, and the tadpole broke again.

The splinters crackled against the hardwood case, and it turned out that the tadpole was not a blister, but a pulp splashed with cold water to condense.

"You've made a big mistake, but you've also made a big discovery.

It seems that this is more useful than I imagined. ”

He fished out the last Poli drop from the water and tried it repeatedly with a knife, sword, hammer, and pliers.

As long as it hits the tadpole on the head, no matter what means you use, it will be as strong as a turtle.

"W-what the hell is going on?"

Yu Zhileng snorted, and first talked about Qingyun's ugly state just now, and the origin of the footprints on his thighs.

Seeing that he was already red with shame, he continued to preach,

"The droplets formed by the condensation of Poli water are quickly wrapped around the surface, and this phenomenon is the same for all materials.

This is the reason for repeated quenching when we are forging weapons.

When you catch it, you can see that the tail of Po Li Di is very fragile, which indicates that the strength trapped by the surface layer is very strong.

Poli's tail isn't covered by a rapidly shrinking surface, and if you touch its tail, it triggers this force that shatters from the inside.

The trapped force was able to shatter Po Li in an instant, indicating that the enveloping force of the condensation drop's head was even greater.

This force will pull the head of the condensation drop, making it indestructible.

In this way, the strength of Poli after quenching is much higher than that of steel.

If you make good use of this, you can make a very hard surface. ”

Speaking of this, Xuan Zhi shook his head, pressed his hand on Qingyun's shoulder, looked at him and said helplessly,

"But where are we going to get a lot of Poli for experiments?"

"Liu Bijinduo, have you forgotten Liu Bijinduo?"

Yes! When I met this miser yesterday, I had euphemistically expressed my interest in Po Li.

But that guy's business sense is sharper than that of a mole, and he seems to think that this pair of Nanqi youths who wandered to the temple will not be a good buyer, so he desperately hides it.

"Looks like I should have talked to him about business.

Ay! To be honest, talking about business is the biggest headache for my brother. ”

"But the fourth sister is an expert, her mouth, tsk, tsk!

When it comes to buying and selling, I have a headache when I talk about business. ”

"Fifth brother!

You can always link out the most critical information at the most critical time.

Could it be that this is the life-defining trait of the legendary Nine Dragons Pillar? ”

Bang, bang, the hand resting on Qingyun's shoulder slapped it twice.

Qingyun's body parts, just now have fallen apart, and after eating this bear paw, I feel that this body is going to disintegrate.

However, Qingyun knew in his heart that he was already in a good mood at this time, and after two beats, the disaster he had caused was in the past.

"By the way, the younger brother has one more matter, I want to talk about it with the second brother."

"If you want to say it, what is the ink?"

"Well, mainly, this is what the old fairy said in a dream."

Yu Zhi was laughed at by Qingyun, but he still patiently listened to him tell about a dream on the top of the mountain, and the wooden wings crossed the void.

But when he heard this, he stopped laughing.

"This kind of manned flying kite was indeed mentioned by Mr. Gongyi in the Spring and Autumn Period.

It's just that after a thousand years, I haven't heard of it again, and this drawing is afraid that it has been lost.

If we develop an experiment from scratch, the time and cost is not what we should consider now. ”

"The guide car, the geodynamic instrument, Xuanji, Yuheng, these ancient legendary machines can be reproduced in Ling Zun's hands, what is a flying kite?"

If you can't do it, you will use the agitation, Qingyun himself understands that this trick is used to deal with Yu Zhi, and it has been tried and tested.

Technical authorities are arrogant in their bones, and they have been average throughout the ages.

"Absolutely not, but not necessarily.

It was only when my father got a permanent magnet that he copied the guide car.

got a giant cluster of gypsum crystals, and only then did he copy Yuheng.

If I can get the right hardwood, I'll make it! ”

At this time, the voice of a majestic elder with a rather elegant style came from afar,

"Why, your master sent someone to bring a lot of wood from the Southern Dynasty, and there was a letter left in it, which was actually for you.

This kid doesn't know what he's doing, so go see for yourself. ”

Qingyun almost peed in fright when he heard this voice, isn't this the accent of the fairy in his dream?

He fixed his eyes on the place where the voice came from, oh my god, today I didn't see a fairy, I saw a ghost!

Why is it so coincidental, the company commander seems to be almost like that......

He tried to recall the face of the immortal in his dream, and he couldn't remember the details.

But that temperament, that style, that white robe, oops, he didn't run.

The man saw Qingyun hiding behind him, and then looked behind him, there was no one?

Then he straightened up the high-crowned Taoist robe, and saw that Qingyun was still hiding from him, but now he was confused, and he only had to ask each other.

"This is the sworn brother of the twilight, Qing Xiaoyou, right?

After a long time in Shimo-Hojo, the first time we met, I don't know where to disturb the little friend? ”

Qingyun flashed out at this time, and told the strange dream he had repeatedly.

Hojo seemed to be more surprised than Qingyun after listening to it for a long time,

"This, Mr. Gongyi, is the ancestor of the poor road.

As for the drawings of the flying kite, Poor Dao does have a copy in his hand.

It's just that this craft has been lost in the family for a long time.

This picture has been shelved and no one cares, but today it was dreamed of by Xiaoyou.

This, this is a miracle. ”

"What?"

Yu Zhi also felt that this matter was too coincidental and exclaimed.

Qingyun is even more confused about the situation,

"How did Mr. Hojo become a descendant of Mr. Kolo?"

"Mr. Gongyi is the self-name of the ancestor, not his own clan.

Mr. is a lineage, and there is indeed a family in the younger generations who use the surname Gongyi.

It's just that the shade is not thick and has not been passed down.

Mr. was the guest secretary of Lu at that time, and the king of Lu treated Gao Shi with courtesy, and gave Lu and Gongqi.

However, the Tiao clan was originally the head of the six clans of the Yin people, who were famous in Ludi.

According to the words of the former ram and the grain beam: the loser will fall.

Mr. came from the former dynasty minister, and at this time he was degraded to the people, so he called himself a public loser.

Later, Mr. had a debate with Mozi on the sand table, and after some setbacks, he split the Tiao clan and disappeared.

Later, the 12 divisions, from one to six were responsible for the research and development of six types of machinery.

The Southeast, Northwest, and Nakajo clans mainly focused on architecture, fortification, basic theory, and other Mohist strengths in the past.

There is also a mysterious Gongyi clan to develop complex machinery, and the old skills of the old masters.

Although Mr. set up a group with different R&D directions, this kind of initiative is good.

However, the situation in the Central Plains is changing, and under the impact of the Jin Ge Iron Horse, it is difficult for the small families after the split to survive, and many of the separated families have been extinct.

And the surviving family is too specialized in technology, restricted by other related technologies, and can no longer restore the glory of their ancestors.

The current clans of the Tiao clan can no longer be compared with the Xu clan and the Xiao clan who were listed in the same six clans in the past. ”

Yu Zhi nodded,

"At that time, the Tianqi royal family was divided into eight by Liu Bang, from the first to the eighth, only the fifth clan barely lasted until the end of the Han Dynasty.

Once a family that has lost power is dismembered, it will be difficult to regain popularity.

It's a pity that Mr. Gong lost that year, and he didn't anticipate this festival. ”

Qingyun has no interest in the rise and fall of the big clan, and the focus he focuses on is relatively strange.

"I heard Uncle Chen say that the surnames with the public character are all from rich and noble backgrounds, and I have always regretted that the surname has no successor.

Listening to Mr. Hojo's explanation today, there is even a ram as the clan, how valuable is this ram clan? ”

The old man laughed,

"For the origin of the surname, it is so poor that it happens to have some research, so you might as well go crazy and explain it a little.

Many compound surnames are regular, and they have existed since ancient times, such as the queen of the Xia Hou clan, which is a symbol of status.

There are bears, there are Yu, there are women, there are poor, there are still, and there are words into the clan, indicating that it is a large tribe with a large population.

Sima, Situ, Sikong, and Sikou are all surnames produced by the "Zhou Li" control office.

Your Uncle Chen explained to you that the appearance of the public in the compound surname represents a rich and noble background, and there is also a basis.

Before the Zhou Dynasty, Gongzi Gongsun was not a clan name, but a name for members of the royal family.

Therefore, the real Gongsun clan only appeared after the Qin Dynasty, and it is the surname used by the grandsons of those who died in the country.

And the names of Gongyang, Gongye, Gongxi, Gongshu and other clans are indeed surnames derived from the princes and royal families, and most of them are from the Lu State.

As I said earlier, King Lu once regarded himself as a Zongbang Wangguo, believing that the world's etiquette and music had collapsed, and all the gifts of the world were in Lu.

Therefore, the Ludi royal family is all arrogant, and those royal family branches seem to be afraid that they will be forgotten after a few generations, so they have added the public character in front of the family name.

For example, the aforementioned Ram clan is the descendant of Yang Ru, the grandson of Lu Guo.

Gongye and Gongxi are both descendants of Uncle Gongye, a relative of Lu abroad.

Only Uncle Gong, from the Wei royal family, is a surname specially given by Wei Xianggong to thank his uncle Chengzi for helping his father to restore the family.

The ancestors were in the country of Lu back then, and they were in the company of the ministers, and they saluted day and night, so they could not avoid vulgarity.

Take the public character as the sign, and it is the same. ”

Zu Yuzhi saw that this old man was chatting very speculatively, not like he could stop for a while, and hurriedly began to bring the rhythm,

"Hojo-senpai, let's go and see the batch of goods sent by Master first, shall we?

When you have time, where can you go to the seniors to see the drawings of the flying kite? ”

"Hey, you go to receive the goods, and the poor road will take the drawings with you.

This kind of treasure can't rot on the drawings.

Since I am fortunate to meet your brother-in-law today because of a dream, it is all fate.

Maybe this is God's intention to let the flying kite reappear in the world, and the poor road can go against the sky, and I don't know the beauty of adults? ”

The letterhead is unfolded, and the dragon and phoenix dance on it are Mr. Huayang's notes:

Tanzong's old affairs, Wei Palace, for the teacher has a glimpse of the clues. Ling Zun Wenyuan, as a Qi general, although he is concerned, it is inconvenient to travel north. Therefore, make an appointment with Yu, and within a few years, you should promote a study tour in the northern country. Songshan Tai Room, the North Altar of the Heavenly Master, one breath and branches, you will come to think, so leave this book, and wait for the time to come. Thou hast obtained the diagram of the crossbow, and thou hast known that its material is hard to find. He has been traveling for several years, painstakingly lonely, and he has not been thorough. In the first year of Jianwu, he tried to travel to Yizhou, built Zhuyue, climbed the ruins of the king of the stone, visited the pavilion of the Yiren Tailu, and found the sacred tree in the Nanyi Mountain, which was unbreakable. See the dragon king tan again, the sword and axe are difficult to invade. So he hired people to cut it down, and the path was cut off. The king of Yi sent the waterway to Songshan, and the preparation also lasted for many years. Guanyun Road is long, it should be a matter of four years of military construction, and there are twists and turns here, and there are no words to complain, and I hope you will make good use of it. In the second year of the establishment of the military, Huayang lived in seclusion.

The red sandalwood is two feet thick, and the diameter of the sacred wood is five feet.

All of them are cut into three zhang, the smell is fragrant, and they are tied to the eight-wheeled car.

Holding the letter, his heart was surging.

It turned out that Master and Father had been working on their own trip to the north a few years ago.

However, he may have come a little earlier than Master had expected, so he saw this letter in front of Kou Guanyun, the head of the Cloud Viewing Dao.

These two sections of wood, after three years, were sent from Yizhou, and it is thought that the master specially prepared wood for the body of the crossbow machine, and it must not be wasted.

Ay? With such a thick trunk, you won't need much to make a crossbow, so if you use it to make a flying kite......

Well, I'll have to do the math when I get the drawings.

Qingyun on the side had a very happy conversation with the two Yiren who escorted Shenmu over.

These Yizhou Yi people, in ancient times, had the same origin as the Yue people of Middle Earth, and all the tribes were mixed and had their own territories.

Among them, the Kunlun tribe in the north is the most connected with the Central Plains.

They have been doing some timber and ore business with the Central Plains boats and boats since the Han Dynasty, so the customs are not much different from those in the Central Plains.

When Soochow built sea ships, it purchased a lot of wood from Yizhou.

Although the hardness of Shenmu is not high, it is extremely tough and should not be broken, especially it is naturally anti-corrosion and moth-resistant, and it is one of the best shipbuilding materials.

And the dragon king purple sandalwood is also the strongest in the wood, and it is a good material for making masts.

Therefore, Sun Quan once sent Wei Wen and Zhuge Zhier to help the Kunlun clan enter the mountains to fight for survival and compete for the resources of the Divine Tree.

This time, it was the Kunlun clan who helped Mr. Huayang to get the wood, and this time he sent the prince Kunlun Yiyu to personally escort Shenmu into Songshan Mountain.

However, the Kunlun territory does not produce wood, and the felling of this sacred tree was actually completed by the tribe of Cao Chenghan, an ally of Kunlun.

Ali Mountain in Nanyi Prefecture is rich in sacred trees, and the Cao people are originally a small tribe in the mountains.

Later, Kunlun borrowed troops to attack the mountain, captive thousands of people and returned, helping the Cao people to become the first clan in Ali Mountain.

However, in order to completely control Ali Mountain, the Cao people cleared the rest and resisted the infiltration of other tribes.

It also took several years to stabilize the situation, so that Soochow cut off the supply of Shenmu.

Wei Wen Zhuge Zhi was also executed for "violating the edict and having no merit", and passed the head to Yizhou to help the Cao people buy people's hearts, so as to appease the Shengfan who was defeated by the Wu army and control Muyuan as soon as possible.

This kind of imperial mental trick also made Qingyun sigh.

After the fall of Eastern Wu, the Shenmu business was monopolized by Sun En.

Sun Enlu Xun gathered disciples with five buckets of rice and dominated the sea off Yangzhou Jiaozhou.

Because the quality of the boat is better than that of the Jin army, it can deal with the strong Jin for more than ten years.

It was not until the famous general Du Huidu traded with Yizhou through the Yue people and rebuilt the building ship that the Jin army regained the strength of the first battle and killed Lu Xun in South Vietnam (now Vietnam).

The two little brothers Kunlun Yiyu and Cao Chenghan became more and more excited the more they talked, and Yizhou's commercial and trade tendencies could determine the strength of the Central Plains regime's naval army, which was the thing that Yizhou people were most proud of.

However, since the war in the Central Plains, the allocation of resources in the Southern Dynasties also tended to be wars in the north, and Shenmu's business became worse and worse.

Finally, I looked forward to Tao Hongjing, a buyer who knew the goods, and their service was naturally full and sent the princes of the two clans to show their sincerity.

As a generation of technology nerds, I can't help but sigh,

The so-called technology and equipment are actually constrained by materials and resources.

Such high-quality wood is indeed of great significance for seagoing ship manufacturing, crossbow machines, and construction machinery.

If it weren't for the master's well-informed knowledge and finding overseas Yizhou, even if he got the blueprint of the Divine Crossbow Flying Kite, it would be difficult for him to cook without rice.

Hojo is also a believer, and when a few friends were talking happily, he had already appeared with a roll of silk cloth and a smile.

After a brief glance, I saw that the promotion of the drawing was "Wood Magpie Flying Kite Diagram", which actually recorded the two kinds of machinery of Wood Magpie and Flying Kite.

The wooden magpie is a small model that can glide hundreds of steps, and the flying kite is an enlarged version of his manned version.

Note: Make wooden magpies first to prove their work. Rebuild the flying kite, walk in the clouds. Like a male loser, the ink is broken. Thou shalt be strong on the wall, and I will control the air.

Hey, dare to love this flying kite is a work of anger after the Luban sand table debate was succumbed to Mo Zhai, and it was specially used to break the Mo's urn city.

I don't know if the Mo family had a chance to see the finished product later, and did they give a countermeasure?

The harvest of this day really made the joy of the dawn out of hope, and now everything is ready, only the east wind is owed.

Dongfeng, well, say that Dongfeng, Dongfeng, Dongfeng, will arrive.

The east wind blew three Taoist priests, led by an old Taoist nostril, but it was a standard bull's nose, and he roared angrily,

"Ancestral child, which one is your master singing?

Sent such a big lump of wood pimples, are you here to bet on my temple gate? ”

Zu Xuanzhi greeted him with a smile on his face,

"Guanyun Dao Chief, such a large tree trunk is really in the way.

Why don't I take charge of the master and cut him open.

This piece of divine wood is just fine, but the dragon king purple heart sandalwood is extraordinary, and iron can be easily divided.

So, so you may have to work ......."

"Alright, don't beat around the bush.

Last time, Lao Tao brought the Zhuya ochre sandalwood (now known as Hainan Huanghuali), and I also helped him cut it.

Just say it bluntly, do you want to shredd, or do you want to slice it?

Tetsuo and I are idle, but there are conditions. ”

The Taoist who intercepted the words on the side was Qi Wu Xianwu, and he considered himself the third in the world's casting technique.

Why is it called third?

Because there are still Tao Hongjing and Mrs. Xu in the world.

Tao Hongjing didn't say it, that Mrs. Xu was the royal caster of the Northern Dynasty, and she was almost crazy about forging swords.

He trapped himself in the Balektu Volcano, refined his sword with earth fire, and proclaimed himself the first swordsmith at that time.

The wife is also extreme, so the word Mrs. is taken to imply the peak.

Standing side by side with two monsters like Xu Tao in the world, Qi Wuxian Wu claims to be the third in the world, but he is not modest, he can only hate being born at the wrong time.

Maybe if he mixes with his sons, he can get the first?

"Chief Qi Wudao, if you have any requests, just mention them.

Both the family teacher and the younger generation owe a lot to the Taoist, what else is there to discuss? ”

"Hey, little one! You can't favor one over the other, I, Dalian Tienan, have also made great efforts. ”

"Yes, yes, cast a fourth-in-the-world iron male road leader, how can I forget?"

"Haha!" , Dalian Tienan is called the fourth in the world, and he is actually smiling so happily, it can be seen that he has absolutely no objection to the three names ranked above him.

Qi Wu Xianwu patted Tie Nan's shoulder,

"Alright, let's get down to business.

I don't know what your master is doing with this piece of wood.

But from what I know about him, he's definitely not going to run out.

What about the remaining wood, I want to ask for a statue of Lao Jun,

Even if it's a paycheck.

The aroma of this wood is self-generated, it is very auspicious, and it is a pity not to be the ancestor. ”

"No problem, no problem.

The younger generation only takes a wooden kite, a crossbow machine of wood.

The wing bones of the wooden kite and the string arm of the crossbow machine need to be made of sacred wood.

The grip of the wooden kite and the body of the crossbow machine need to be made of purple sandalwood.

The rest of the timber will be disposed of by the Taoist. ”

"Wooden kites? Could it be that old man in Hojo......

Hojo old miscellaneous hair, I exchanged ten treasure knives for you and you didn't change a drawing, and today you actually ......"

"Hey, hey. Xianwu, you're getting more and more unruly.

Lao Dao is not a good man, where do you need a bundle of knives and guns by your side?

This heirloom treasure pays attention to fate, and today, it is fate.

It's because I have a fate with Qing Xiaoyou, so that's why I follow the good flow and conform to the will of God.

Besides, if he really starts making flying kites, can he still ask you for help? ”

At this time, he suddenly patted his head, as if he remembered something,

"Qi Wu Dao Chief, Tie Nan Dao Chief, can you two help cut a piece of purple heart sandalwood to the juniors today. The juniors still have a deal to do. ”

These two are real people, and as soon as they heard the opening of their mouths, they knew that there must be something important, and they didn't ask the reason, so they rolled up their arms and copied the guy.

Other people were also busy starting, some supporting the wood, and some were specially responsible for sharpening the saw, and they were busy for most of the day, pulling dozens of steel saw blades, and finally cutting off a piece of purple sandalwood that was more than two feet thick.

Yu Zhi and Qingyun were about to carry the piece of wood back to Lanruo, but they were stopped by Kunlun Yiyu and Cao Chenghan.

The apprentices are their potential big customers, so how can they be affected?

Kunlun Yiyu found a rope and tied out two straps, and Cao Chenghan directly carried the stake on his back.

"Let's go!"

Hey, this man from the mountains is really different.

Even if you haven't practiced kung fu, this body is bones, carrying hundreds of pounds of things, and walking up the mountain road is like a leisurely walk.

Compared with the two young heroes, the speed of travel is not much better.

》》》》》 time to knock on the blackboard《《《《《

This book mentions the discovery of Rupert's Tears by Zu Yuzhi. Given the ancient Chinese gold of glass, this section is naturally apocryphal. But this kind of apocryphal overtone is addressed to those "masters" who are suspicious of antiquity, and I don't know if such masters are generally engaged in industrial design or only revise ancient books. Anyway, the habitual thinking they often use is that without A, there can be no C without B. Their perception of industrial design is that it can be done only if it has been. This line of thinking is strange, how has human civilization progressed in the past few thousand years? When there is no steam engine, there is no thrust for steam? When there are no generators, there is no thunder in nature? Is the electric eel extinct?

In the past, when you asked an engineer who was holding an iron job in some state-owned factories if the product tolerance could be achieved, he said no. Why? The machining accuracy of the machine is not enough. Well, it makes sense, why can't the machining accuracy of the machine be reached? fittings, the precision of the screws is less. Why is the accuracy not accurate, the machining accuracy is not enough. If the hob is repeated like this, there will definitely be no progress.

Gong Yizi, Mozi, Zhang Heng, Ma Jun, Zu Chongzhi, these ancient craftsmen, if they all had this attitude, then they really couldn't make anything in ancient times. But the touch class can be bypassed, the experience can be summed up, the accuracy I can't reach, I can do a hundred quantities to take out a suitable part. The ancient Chinese did not have a comprehensive discussion of the geomagnetic field, which did not affect the invention of the compass car and compass. The ancient Chinese model making technology did not pay so much attention to exhaust constant temperature, and the metal utensils made were ingenious, and there were no tortoise pattern shrinkage marks. Even if there is so much assistive technology in modern times, it may not be able to reproduce the magical creations of that time.

The reason why these people are everyone is that they can use the known to deduce the unknown.

For example, the characteristics of glass, I really don't understand. But it can be experimented, it can be observed, it can be summarized, so that there is an opportunity to find unique findings. Is quenching toughening a difficult process to achieve? No. Physics is made by nature, and it is not only the case with literature, but also with science. The lid of the pot blown open by steam was unknown to Watt before hundreds of millions of dollars, and the person who was smashed in the head by an apple was more like the sand of the Ganges before Newton, no matter how true these specific stories are, who said that the truth behind them was not noticed until the appearance of Watt and Newton? The debate between Galileo and Aristotle's traditional school on gravity is not a momentary speculation, but how many Galileos were there before and how many Aristotles were there?

In any case, the physical object is the largest, and the literature is secondary. Those experts who use conjecture and hypothesis to "doubt the ancients" and make assumptions should really change their thinking. Consider whether your thinking is limited by the modern view of industry.

When they thought that it was difficult for a good woman to cook without rice, most Chinese in ancient times could not eat rice. With or without rice, you still have to live.

Let's use the legendary wooden kite as an analogy. In fact, this wooden kite is no longer a legend, and there are many archives about him.

The prototype of the wooden kite is a wooden magpie, which does not carry people. "Mozi Lu Wen" mentions that "the male loser cuts the bamboo and wood to think that it is a magpie, and it flies into it, and it does not fall for three days, and the male loser thinks he is the most clever." ”

In fact, Mozi himself also made wooden kites that did not carry people, and "Han Feizi Foreign Reserve Said" said that "(Mo Zhai) spent three years to fly into the sky with wooden wooden kites". It can be seen that the competition between these two old enemies in the aerospace industry is also fierce.

However, during the Chu-Song dispute, there was indeed a record of Lu Ban making manned wooden kites, so we usually think that Lu Ban had a slight advantage in this project. The history of Chu Guoye "The Old Things of Zhu Palace" contains "(Lu Ban) tastes as a wooden kite, multiplied by it to peek at Song City" ("Youyang Miscellaneous", "Taiping Guangji" Because of this, the record is exactly the same).

By the time of the Northern and Southern Dynasties, this kind of machinery had entered the stage of mass production and was reported in batches. Will this blowout be caused by the reappearance of Luban's drawings in the world (this setting):

"Taiping Yulan, Volume One Hundred and Thirty" :(Gao Yang) also ordered Yuan Huangtou and all the countries to fly from Jinfengtai to the paper, and the yellow head to Zimo fell to the ground.

"Duyi Zhi • In the Volume": In the third year of Emperor Wu of Liang's Qing Dynasty, Hou Jinganti, besieged Taicheng, and was inaccessible from far and near. Jian Wen and the prince are in a hurry.

These two accounts involve the royal families of the Eastern Wei, Northern Qi, Southern Liang, and Hou and Han dynasties, and the experiments were successful. Yuan Huangtou flew from the imperial city to the suburbs, but he still didn't die, he was recaptured by Gao Yang and starved to death. The wooden kite of the Liang people flew out of the city, but was shot down by Hou Jing's army, but the person who reported it could not be found. In the face of so many examples, should this manned wooden kite be considered groundless, and what do you think?

We're not going to expand on this topic anymore. In the next section, we will talk about Lu Ban's surname, and you will be at peace.