"Why are you exploring the East China Sea?" Hao Zhi took a cup of tea handed over by the staff and took a sip.

"Oh, have you heard of ancient civilization?" asked Professor nado, leaning against the sofa in the conference room.

"I've seen some in science and education programs, which are not very systematic. It seems that they are all the conjectures of some scientists."

"Do you think we humans are the only rise of civilization on earth after 4.6 billion years of development?"

Hao Zhi thought, "probably not?"

"Yes, according to all kinds of relics and original materials unearthed all over the world, the development of human civilization is only the rise of the sixth civilization after the development of the earth today. For some unknown reasons, the previous civilizations disappeared after their glory and disappeared in a very short period of time."

"Now it's our turn..." Hao Zhi subconsciously added.

"In this round of civilization development, we probably inherited some knowledge left by the last round of civilization before entering the agricultural society from the primitive society. Otherwise, there is no explanation for just an Egyptian pyramid!"

"Pyramid?" Hao Zhi went there with Wang Yanke. He didn't think there was anything special. It was just a pile of stones there.

"Yes, this is an unsolved mystery open to the world. For example, the side length of the square at the bottom of the pyramid multiplied by 2 and divided by the height of the pyramid is exactly equal to 3.14, that is, PI! The weight of the pyramid multiplied by the 15th power of 10 is equal to the weight of the earth, and the height of the pyramid multiplied by the 9th power of 10 is equal to 150 million kilometers, that is, the distance from the earth to the sun!"

"Oh? What does that mean?"

Professor nado shrugged: "It may be a coincidence in architectural data, or it may be an explanation by later generations. However, if it is analyzed from the perspective of surveying, it shows that the Egyptians 5000 years ago already knew that the earth was round and measured the Earth Day distance through some method, that is to say, they had entered the space age when other earth civilizations were still eating meat and blood!"

"I made a song!" Hao Zhi gasped. "There are too many unexplainable things in this world!"

"And the secret is more than that," said Professor nado with a smile, "The vertical bisector of the square at the bottom of the Khufu pyramid extends to infinity, which is the meridian of the earth. This vertical bisector divides the land and Ocean on the earth into two halves, and also divides the Nile estuary delta equally; while the diagonal of the square at the bottom extends, it can include the Nile estuary Delta; and the center of the tower is just located at the center of the gravity of all continents... Other kinds I won't list countless data one by one... "

"You mean that Egyptians may have mastered advanced technology equivalent to our current technology at that time?"

"It may also be that other advanced civilizations are helping them build this, similar to the power of our current civilization level!"

"In other words, there is more than one civilization system on earth?" Hao Zhi looked nervously to the left and right. Should there be aliens hiding nearby now?

"At present, it is not impossible! Because according to our general understanding of the process of human development, many things are unexplainable, not only the pyramids, but also the piriles map."

"What map?"

"In 1929, while sorting out the Byzantine Royal books in the old Sultan's palace in topkali, Khalil edhem, curator of the National Museum in Istanbul, Turkey, accidentally found a map drawn by general pirires on a row of dusty shelves."

"It's just a map. What's strange?"

"The problem is that the contents drawn on this map include South America and Antarctica, which were unknown at that time! It was 100 years after the map appeared that human beings discovered Antarctica. Moreover, it was not until 1952 that human beings used high-tech echo location devices that they were able to accurately determine the terrain of Antarctica covered by thick ice at such a distance How did a general who could not even adjust the longitude of navigation draw such an accurate map with his naked eyes in a distant era... "

"He didn't draw it, maybe he copied it, maybe he picked it up!" Hao Zhi smiled.

"Ha ha, I like your way of thinking. I don't stand up to myself. It's simple and straightforward!" Professor Naduo praised him with a smile. "In fact, it is possible to obtain this knowledge from the map left over by an ancient civilization."

"But do you know what reference these can have for us?" Hao Zhi asked strangely,

"It can be assumed that there have been four or five top civilizations on earth, and their existence, no matter for what reason, will certainly leave clues. For example, even if our current human beings disappear in an instant, the projects we build, the cities we leave behind, and even hundreds of millions of books and inscriptions recording knowledge will not completely disappear, This will play a vital role in the development of the next round of civilization! "

"You mean, we don't need to be a cow to ourselves, bury our heads in the laboratory, and squeeze toothpaste to discover scientific knowledge. As long as we find the treasure house of knowledge left by the former human civilization, we can make a leap in the short term!" Hao Zhi has experienced so many things, and his brain has turned much faster than before.

"Yes!" the professor stood up with a smile and circled excitedly around the big table in the conference room. "Which country makes a breakthrough in this field first may dominate the next century!"

"Interesting... I heard Xu zhe say, oh, by the way, you don't know this man yet. I heard him say that our later progress and development was alien knowledge learned from the Tianhe-1 we built at present, but you told me that the object we want to learn is likely to be our ancestors before the earth civilization."

Professor Naduo suddenly turned around: "yes! Yes! It doesn't matter who to learn from. What matters is who will teach us! How can we establish this information channel? Once this information channel is opened, the development of civilization in the future is just around the corner!"

"Maybe the future disaster will follow!" Hao Zhi muttered angrily, "bury your head and plant the land. You can carry water and I can weave. You have to contact those dangerous guys. It's strange not to be beaten!"

"What are you talking about?" the professor didn't hear what he was muttering and asked.

"Ah? Ah, nothing. I mean, do you have any new discoveries in the East China Sea?" Hao Zhi quickly forked the topic.

"It's this..." Professor Naduo took out a fax document from the drawer and threw it across the table. It was a black-and-white photo. On it, an archaeologist stood beside a huge black reef with a small hammer and a very bright smile.

"Is there anything strange about this man?" Hao Zhi looked back and forth for a long time and didn't find the visual focus.

"You took the picture too close. Look away... Look at the reef, black, what it looks like?" Professor Naduo guided him patiently.

Hao Zhi straightened his arm and half raised his neck. He carefully distinguished the shape of the black reef with his remaining light. After a long time, he suddenly understood: "hold the grass! Why is it so like a skeleton?"

"Yes!" Professor nado patted the table excitedly.

"But..." Hao Zhi looked at the huge reef. If it was a fossil, such a huge skull was more than two people tall. If you count the body, the man's height was almost 40 meters!

Ancient civilization? Giants?