"Brothers, I'm out of the customs!"

"I'm out!"

Around nine o'clock in the evening.

Nine classes in the restaurant.

When the ninth class of people had a rare reunion after a day of exploration, bragging about what they had seen and heard, the door of the restaurant was suddenly pushed open rudely.

Niu Pu rushed into the restaurant with an unusually excited spirit, and behind him was a cart with the difference machine he had been studying for many days.

This sudden loud noise immediately startled everyone in Class 9, but when everyone looked back and prepared to output a wave of words, they were a little dazed for a moment.

They looked at each other, then at Niu Pu, and suddenly they wanted to laugh.

Yes, want to laugh ...

Their first attention was not on the difference machine behind Niu Pu, but at his head.

In their impression, although Niu Pu doesn't say that he has long hair, his hairline is complete.

But now...

How do you look at the other party's hairline and the pictures of programmers on the Internet?

Isn't it a bit too backward?

After a few moments, the crowd couldn't help laughing anymore.

In an instant, the originally silent restaurant was once again filled with a cheerful atmosphere.

Niu Pu blinked blankly: "You..."

"What are you laughing at?!"

Hearing this, Li Chengqiang held back a smile and asked with concern: "Isn't it..."

"Brother Niu..."

"Isn't our hairstyle a little too strong?"

"Don't you feel a little cold on your forehead?"

Hearing this, everyone in Class 9 immediately covered their mouths, and their shoulders kept shaking.

No, you can't laugh too loudly, you have to save some face for Niu Pu.

This thing has been in retreat for so long, and it can't be ridiculed when people come out!

Seeing this, Niu Pu's face immediately darkened, and without saying a word, he put the hood behind him on his head.

Thanks to the hoodie he wore today, it would have been difficult for him to end up.

Immediately, his face sank, the tip of his tongue was on the top of his teeth, and the dantian shouted as soon as he mixed his vitality and roared angrily:

"Is there something wrong with your focus?"

"I told you that I was out of the customs, and you actually asked me if my forehead was cold?!"

"Am I talking about this problem?!"

"Is that the point?!"

"Shouldn't you ask me why I got out?!"

Hearing this, everyone in Class Nine looked at each other, shook their heads after a while, and blinked innocently:

"Should it?"

"I think it's more than the thing behind you."

"We should be more concerned about your body."

"After all, we are beloved relatives and friends, brothers and sisters~"

So you have to add money, right? Niu Pu's face turned black again.

He now really wants to give these friends a set of military physical punches right away.

However, just as he was about to implement this plan, Ren Yan stepped forward to stop this happy atmosphere:

"Okay, okay, stop talking nonsense."

"Niu Pu wants to come and share the results with you, so you have to give people a face first."

"Let's cooperate with other people's performances~"

"That's it~" Niu Pu nodded in agreement.

Seeing this, everyone in Class Nine was not laughing, and after spending their hearts happy, they asked seriously:

"So, what the hell did you find?"

"Can you be thrilled like this?"

"The specific role of this differential machine!" After the ninth class asked, Niu Pu immediately answered.

As he spoke, he also pushed the differential machine pulled behind him in front of him, and said with a sense of accomplishment:

"This difference machine, what it wants to calculate is astronomy!"

"Astronomy?!"

As soon as these words came out, everyone in Class 9 immediately became interested, and the dinner they were enjoying involuntarily put back.

Originally, they thought that this thing was to calculate a large number, although it looked full of technology.

But in fact, the level of technology is limited, and at most it is the function of an electronic calculator, and it may not even be as good as it.

After all, you can't expect a bunch of mechanical gear structures to come up with something earth-shattering.

Not to mention, it's probably a few hundred years old.

So, after the initial freshness passed, they actually didn't pay much attention to this differential machine.

If it weren't for Niu Pu wanting to study it, they might have turned it over to the state a long time ago.

But now, they're really surprised.

Astronomy, no matter how much they know about it, there is one thing they know very well.

It's the amount of calculation of this thing, which is definitely an astronomical amount, otherwise this word would not have appeared.

Come to think of it, celestial bodies are often tens of thousands of light-years away, and even today's computing power is definitely a huge number.

Not to mention the complex celestial movements.

When all these variables are added together, even electronic computers are always at risk of becoming obsolete.

But now Niu Pu says that this thing is astronomical?!

After a short period of surprise, Class Nine subconsciously couldn't believe it.

"Are you sure this thing is astronomical? Got me right? Ah Wei opened his mouth and asked with a frown.

"Absolutely, yes!" Niu Pu nodded seriously, and then beckoned, signaling everyone in Class Nine to come closer.

After everyone gathered around and stood on the stool, Niu Pu began to tell the whole process of his reasoning:

"I understand your surprise, and I was surprised when I realized that."

"But sadly, that's the truth."

"First of all, the first message this thing gives us is the numbers 235 and 127."

"Following these two numbers, I flipped through a large number of historical texts, and finally found these two numbers in the classics of astronomy."

"So, these two numbers have a special meaning?" Wang Bo asked.

"Yes, these two numbers represent a period of astronomy handed down from ancient Greece." Niu Pu nodded:

"In those days, the ancient Greeks determined time by looking at the moon."

"The moon's cycle of 29.5 days, known astronomically as synodic months, is 354 days, 11 days less than our current solar calendar."

"The 11 days that are missing were made up by leap months in ancient Greece."

"But their method of calculating leap months was different from ours, and in the astronomical books of ancient Greece, they observed that every 235 synodic months was equal to 19 solar years."

"This 235 also corresponds to the number engraved on the gear."

"I think it's about one week of this gear, which corresponds to the overall cycle of the blue star, the moon and the sun, nineteen years."

Niu Pu also tried to fluctuate the large gear, but because of the severe corrosion, the gear did not move.

"And what about the 127 you mentioned earlier?" Ah Wei opened his mouth and asked, "What does 127 represent?" ”

"That's actually 254." Niu Pu shrugged:

"This thing is on top of the gears, and the gears are snapping into each other, so we should multiply by two."

"In the same way, some Greek astronomical texts record that the moon has an orbital period of 27.3 days."

"Nineteen years is exactly 254 moons, although there will be some deviations from the current one, but this deviation is negligible in the history of thousands of years."

"So this thing is meant to simulate the cycle of a blue star, the moon and the sun? That is, a lunar eclipse?! ”

Wang Yu, who had been thinking for a moment on the side, suddenly spoke up, his eyes showing horror.

As one of the few people in Class 9 who was slightly interested in this thing, he also had a concern at first.

But I didn't expect this thing to be so intimidating.

"Yes, but that's only part of the purpose of the machine." Niu Pu smiled.

"Part of it?!"

"That's right, because I also found that there is one of the largest gears on the back of this machine, and although it has been corroded too badly, I have found its parameters after careful cleaning."

As he spoke, Niu Pu adjusted the difference machine to an angle, so that its back was exposed to the eyes of everyone in Class 9.

Immediately, he pointed to the back, which had been completely cleaned:

"See that number? 223。 ”

"This represents the number of teeth in this big gear."

"And in the Sumerian civilization, 223 months is exactly a cycle of total solar eclipses."

"So, this thing can still calculate eclipses? Who's the one who made it?! ”

Niu Pu said, and Wang Bo on the side was also shocked:

"More than 2,000 years ago, not only did you know the astronomical knowledge of Greece but also the astronomical knowledge of Sumer?! It's a bit outrageous! ”

"That's the point you asked, I was messy at first, but it wasn't until I saw the text."

Niu Pu glanced at Wang Bo appreciatively, and then pointed to the notch on another gear with his white glove:

"Although the nicks are badly worn, they are still faintly visible after cleaning, and I have confirmed that they are a kind of writing."

"A script that has been handed down for thousands of years, the Collins script, which means the moon."

"Collins?! Where is this? I haven't heard of it..."When the words fell, Xu Kai, who was not far away, asked.

Niu Pu immediately gave an answer:

"Collins, according to legend, is the son of Zeus eight thousand years ago, the city founded by Corinthos, with advanced technology."

"It is said that there are also robots living in the city with an unknown source of energy."

"They generally possess knowledge that is ahead of their time."

"It's just that the city was destroyed for unknown reasons, and the Corinthians in the city went their separate ways."

"And among these Collins descendants, there is a man who is unusually famous."

"This man is Archimedes, a physicist, mathematician, inventor, builder, astronomer, known as the Hundred-armed Giant."

After a short explanation, Niu Pu sorted out his thoughts and wanted to continue to make up for this explanation.

But everyone in Class 9 was completely stunned, but after a short blank in their minds, they involuntarily swallowed their saliva.

"Wait, wait, don't get too busy explaining later."

"Tell us first, what is the matter with this son of Zeus? Greek mythology?! ”

"You are a historical relic, rising to the level of mythology, isn't it a little unscientific!"

"And what the hell is Archimedes!"

"Isn't this man the one who invented the buoyancy formula?"

"When we were tortured by buoyancy enough, we even went out of our way to take a look at this person's life."

"If memory serves, he lived for more than 200 BC!"

"It's more than 2,000 years of history!"

"You mean, more than 2,000 years ago, the ancients were able to make bronze gears?! It's still so regular?! ”

"That's why this thing is a relic of an anachronism..."

Niu Pu sighed slightly, ready to explain slowly.

But at the moment when he spoke, Ren Yan chuckled:

"When studying culture or history, don't let the names of some documents sway your thinking."

"Myths, at some point, may be history of things that have gone wrong in the way they are recorded."

"For example, the Great Flood, there are the same records all over the world, our Dayu ruled the water, and Noah's Ark in the West, but these are all classified as myths."

"If it's really a made-up story, can it really achieve this level of unity across several oceans?"

"There's always something unknown here."

"For example, if we record the current technology and show it to some civilizations that are completely different from our civilization model, what will they think of everything that has happened in our time?"

"Not to mention, there are some things you may not be able to say..."

"Therefore, it is also necessary to maintain a bold hypothesis and careful verification of mythology, which is the right way to explore a piece of history."

"Niu Pu has such a thinking, which means that he still has something."

After that, Ren Yan glanced at Niu Pu encouragingly.

The people in Class 9 around nodded silently, always feeling that their brains had been artificially chiseled a little bit opener.

"Okay, Niu Pu, you go on."

After seeing that everyone in Class Nine was a little relieved about this question, Ren Yan nodded at Niu Pu.

Niu Pu immediately began to explain the following questions:

"My point of view is the same as what Mr. Ren said."

"As for the question that you are questioning later from more than 2,000 years ago, this is a better explanation."

As he spoke, Niu Pu took out a few coins from his pocket:

"This is the coin we salvaged with the Difference Machine."

"After observation and comparison, I have found that they are from a period in which almost all the styles are small currencies dating from around 200 B.C."

"It's just that all of these small countries were killed by Rome."

"And during the same period, there was also a war between ancient Rome and ancient Greece, and in that war, there was the shadow of Archimedes."

"Or rather, the whole war between ancient Rome and Archimedes alone."

"It is recorded in the history books that when ancient Rome was attacking the city, Archimedes created all kinds of strange equipment to help defend the city."

"All cranes and stone throwers were made by Archimedes."

"In the end, it was the ancient Romans who used the tactics of encircling but not fighting, and killed the ancient Greeks."

"Then that just means that this thing was indeed from 2,000 years ago, but how can you be sure that it must have been built by Archimedes?" Li Cheng asked with a tangled expression:

"Descendant of Collins, Archimedes should be the only one."

"Of course~" Niu Pu smiled: "Actually, in the end, I am sure that it must be Archimedes who built not only the same era." ”

"There is also important historical evidence."

"In ancient Greek texts, Archimedes built a machine that calculated the motion of celestial bodies by means of hydraulics, but this machine has since disappeared."

"And that thing is huge, so it's definitely not the one we got our hands on."

"But at least it shows that Archimedes could have built the same thing."

"And the other testimony is from ancient Roman documents."

"In their accounts, the emperor of ancient Rome sent his generals to attack Greece, and in the end the generals captured two machines that could manifest their divine powers, one of which was handed over to the emperor and the other was kept by the general for his own sake."

"I wonder how in ancient times, things that could calculate solar and lunar eclipses could be considered divine powers."

"With this thing, the emperor is more able to represent the will of God, but people can accurately predict even solar and lunar eclipses, so what will his people think of this emperor?"

"And in addition to this speculation, there was a poem written by a poet in ancient Rome at that time."

In the poem, he also mentions this machine, and explains that the one he has seen with the general is used to calculate the celestial bodies.

"Of course, his poetry cannot be regarded as a real historical document, and can only be used as a testimony."

"But don't you think that with so many testimonies combined with each other, the answer is already on the surface?"

"As for how it ended up on a pirate ship and appeared in the Bering Strait, it is estimated that the poor general was robbed later..."

After that, the corners of Niu Pu's mouth hooked up a smile again, and he felt that his performance this time was perfect!

The coherent telling of this magnificent story made him feel a sense of accomplishment.

In fact, Class 9 is really impressed by the current Niu Pu.

It's no wonder that people's hairline has receded, it's really getting stronger.

So much trivial information was really integrated by him, and it sounded reasonable.

They can't do that anyway.

Thinking of the literature mentioned by Niu Pu just now, they felt that their heads were big.

'This grandson, how many books have you read during this time...'

"There's one more question." After a short sigh, Xu Kai, a pragmatist, silently raised his hand: "What is the use of making such a thing more than 2,000 years ago?" ”

"Purely for the sake of domination?"

"I guess it's more than that." Hearing this, Niu Pu shook his head and guessed: "During that time, it was still in the agricultural civilization, and the common people relied on the sky for food. ”

"I think it would be very helpful for them to have such a machine that can calculate the time of day..."

After listening to Niu Pu's completely self-consistent logic, everyone in Class Nine fell silent and fell into a deep shock.

Immediately, they looked at Ren Yan, wanting to hear their teacher's opinion.

However, Ren Yan only shrugged his shoulders: "I only know that eighty percent of this thing is astronomical, but I don't have any idea of who did it." ”

"But now that Niu Pu has given the whole clue, I think it should be eight or nine and ten..."

Listening to his teacher's words, everyone in Class 9 silently moved their eyes to Niu Pu and looked at the difference machine in front of him.

Class 9 gave Niu Pu a thumbs up:

"Awesome, sir!"

"We're served!"

"That's it, we won't talk about your hairstyle anymore, this is proof of the strong!"

Listening to the praise of Class 9, Niu Pu was beautiful at first.

He has been busy for so long, pretending to be a big wave and knowing that unknown history, he is very happy.

But after hearing the words of his classmates, Niu Pu's face instantly darkened:

"Are you all done!?"

"Can we stop worrying about my hairstyle?!"

After Niu Pu's impotent rage, the atmosphere in Class 9 became joyful again.

Seeing this, Ren Yan slapped his face: "Okay, don't talk about these useless things." ”

"Now think about what you're going to do with this thing."

"Niu Pu has fulfilled his wish, this thing is of little use to him."

Hearing this, Niu Pu nodded, agreed with Ren Yan's statement, and then looked at his classmates.

Seeing this, everyone in Class 9 looked at the difference machine again, and recalled Niu Pu's analysis just now.

One from two thousand years ago, built by the famous Greek Archimedes, can calculate the difference between solar and lunar eclipses....

After the combination of these labels, everyone in Class Nine shuddered for no reason.

Any label in this feels like they can't bear the weight, and now these labels are combined!

What if this is lost by your own people?!

Is that still there?!

Therefore, after an extremely short period of assumption, the ninth class immediately united the front:

"Surrender, hand it over!"

"It's horrible, it's not something we can master!"

"That's it, it's better to put it in the National Museum, we can rest assured."

"Are you sure?" Hearing this, Ren Yan smiled mysteriously: "If this thing is really as Niu Pu said, its value is sky-high." ”

"Maybe it's worth more than Leonardo da Vinci's Mona Lisa, and you just gave it up?!"

Listening to Ren Yan's words, Class Nine showed a strong sense of reason, and those who didn't hit immediately nodded, even Ah Wei did the same:

"Forget it~"

"No matter how much this thing is worth, it's not something we can touch."

"I can't bear it, you know?"

"It's better for us to make our own money."

After the words fell, Ren Yan nodded with satisfaction: "It's not bad." ”

"It's not a mess because of this, and it's worth encouraging."

"Then do what you say, and hand it over to the state."

Then Ren Yan turned around and looked at Niu Pu:

"But before you turn it in..."

"Niu Pu, you record all the speculations and documents you just cited, and we will hand them in together."

"Although this thing can't belong to us, you still need to gain something from your efforts."

"If your speculation is really confirmed, then your kid Bacheng is famous in the archaeological circle!"

Hearing this, Niu Pu immediately nodded: "Okay!" ”

Immediately, Ren Yan clasped a big hand on Niu Pu's hoodie:

"But after that..."

"You'd better care about your hairline."

"I started to lose my hair at a young age, how will I find a girlfriend in the future~"

As he spoke, Ren Yan looked at the people of Class 9.

Class 9 immediately understood: "That's it~"

"No matter how much you like archaeology, you have to think about it yourself!"

"Look at our ninth class, who is not a hair~"

"You're going to look very unsociable~"

After that, Niu Pu's face darkened visibly again, and then he was a little depressed.

Since everyone is talking about this, shouldn't he really pay attention...

Silently, Niu Pu quietly touched his forehead.

The hairline seems to be receding a little...

At the same time, in the ninth class, Sun Hao's eyes became brighter and brighter when he looked at Niu Pu.