"I understand your surprise. I was also quite surprised when I realized this."
“But unfortunately this is the reality.”
"First of all, the first information this thing gives us is the numbers 235 and 127."
"Following these two numbers, I read a lot of historical books, and finally found these two numbers in astronomy books."
"So, these two numbers have special meanings?" Wang Bo asked.
"Yes, these two numbers represent a piece of astronomy handed down from ancient Greece." Niu Pu nodded:
"In those days, the ancient Greeks determined the time by observing the moon."
"The moon's waxing and waning cycle is 29.5 days, which is called a synodic month in astronomy. Twelve months is 354 days, which is 11 days less than our current solar calendar."
"The ancient Greeks would make up for the missing 11 days by adding a leap month."
"However, their method of adding intercalary months was different from ours. In the books on ancient Greek astronomy, it was recorded that they observed that every 235 synodic months equaled 19 solar years."
"This 235 also corresponds exactly to the number engraved on the gear."
"I think it takes about 19 years for this gear to complete one revolution, which corresponds to one cycle of the Blue Star, the Moon, and the Sun."
As he spoke, Niu Pu tried to move the large gear, but due to severe rust, the gear did not move at all.
"What about the 127 you mentioned earlier?" Ah Wei asked, "What does 127 represent?"
"That's actually 254." Niu Pu shrugged:
"This thing is on top of the gears, and the gears mesh with each other, so we should multiply by 2."
"Similarly, some Greek astronomical books also record that the moon's orbital period is 27.3 days."
"Nineteen years is exactly the revolution period of 254 moons. Although there will be some deviation compared to now, I feel that this deviation can be ignored in thousands of years of history."
"So this thing is used to simulate the cycle of a blue star, the moon and the sun? In other words, a lunar eclipse?!"
Wang Yu, who had been thinking for a moment, suddenly spoke out with a terrifying look in his eyes.
As one of the few people in Class 9 who was slightly interested in this thing, he also paid attention to it at first.
But I never expected that the computing power of this thing would be so terrifying.
"Yes, but this is only part of the purpose of the entire machine." Niu Pu smiled.
"Part?!"
"Yes, because I also found a largest gear on the back of the machine. Although it has been corroded too badly, I still found its parameters after careful cleaning."
As he spoke, Niu Pu adjusted the Difference Machine to an angle, exposing its back to everyone in Class 9.
Then, he pointed to the back side which had been completely cleaned:
"See this number? 223."
"This represents the number of teeth on this large gear."
"According to the records of the Sumerian civilization, 223 months is exactly the cycle of a total solar eclipse."
"So, this thing can also calculate solar eclipses? Then who the hell made it?!"
After Niu Pu finished speaking, Wang Bo beside him also became shocked:
"More than two thousand years ago, not only did they know Greek astronomy, they also knew Sumerian astronomy?! That's a bit outrageous!"
"You've got the point. I was also confused at first, until I saw these words."
Niu Pu looked at Wang Bo with appreciation, and then pointed at the mark on another gear with his white glove:
"Although these carvings are severely worn, they are still faintly visible after cleaning, and I have confirmed that these carvings are a kind of text."
"A script that has been passed down for thousands of years, the Corinthian script, which means the moon."
"Collins?! Where is this? I've never heard of it..." After he finished speaking, Xu Kai, who was not far away, asked a question.
Niu Pu immediately gave the answer:
"Corinth, according to legend, was founded by Zeus' son, Corinthos, eight thousand years ago. It has advanced technology."
"It is said that there are robots with unknown energy sources living in the city."
"They generally possess knowledge that is ahead of their time."
"But later, for unknown reasons, the city was destroyed, and the Corinthians in the city went their separate ways."
"Among these descendants of Collins, there is an extremely famous person."
"This man is Archimedes, a physicist, mathematician, inventor, architect, and astronomer, also known as the Hexapod Giant."
After a brief explanation, Niu Pu organized his thoughts and wanted to continue with the explanation.
But everyone in Class 9 was completely stunned. After a brief blank in their minds, they swallowed their saliva involuntarily.
"Wait, wait, don't rush to explain."
"First, tell us what this son of Zeus is all about? Is it Greek mythology?!"
"You are a historical relic, but you have elevated it to the level of a myth. Isn't that a bit unscientific?"
"Besides, what the hell is Archimedes!"
“Isn’t this the man who invented the buoyancy formula?”
"We were tortured by the buoyancy so much that we even went out of our way to look up this man's life story."
"If I remember correctly, he lived more than 200 years BC!"
"It has a history of at least 2,000 years!"
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