Five minutes have passed this time, and the great sages still haven't come up with the answer, and are still working hard to derive the gravity formula.

An old man said rather reluctantly: "Young man, how did you come up with this kind of question? I always feel that it is not difficult, but there is just one very important thing missing that prevents me from deducing it. I just want to know how to infer it backwards.

, do we need to first figure out the geographical area where this mink is located, and then there are some different differences in different geographical areas?"

"The difference in falling speed?" Mo Ling frowned slightly and said: "There seems to be some constant pattern between these, but we can't deduce it for the time being. I'm afraid it will take a while to study it carefully."

"This is also someone else's research creation. In fact, the formula itself is very simple..." Yu Ling was about to speak.

"Stop, stop, stop! Don't say it, we have to study it ourselves!" An old man interrupted quickly.

Some people even said with emotion: "Can you tell us who developed this constant formula? It would be great if we could meet him."

"He is no longer here..."

Even if he is still here, you can't see him.

One person lamented: "It's such a pity that your human race's lifespan is too short. If you could survive five or six hundred years, you would surely have made more contributions."

Nian Yubai came up cautiously and said: "Um...so does it count as we passed?"

"We are true to our word. It is passed, but don't leave in a hurry. If you have any interesting questions, please tell them all." An old man who looked like a research madman said hurriedly.

"It's really gone..." For the first time, Yu Ling felt that asking other people questions was so tiring.

The old man persisted and said: "How come it's gone? I clearly feel that I still have more to say than I want to."

"Yes, little friend, we are really bored here. You'd better tell us everything you know, even if it means helping us find something to do."

"My little friend, I wouldn't mind if you stay here and discuss issues with us every day, right?"

But I mind...

Yuling found herself completely surrounded.

"How do I get out of the tower..." Yu Ling reluctantly interrupted.

"You can go up to the sixth floor via the stairs over there. There is a formation on the sixth floor that can be teleported directly to the bottom."

As soon as Mo Ling said something, a great sage waved his hand and said: "This is not important. My friend, think carefully about whether you have missed some interesting research..."

There is a sea of ​​interesting research, but the problem is that I don’t know it myself!

Yu Ling winked at Nian Yubai and said hurriedly: "There is such a paradox... A local prophet in Crete said that all Cretans lie, are greedy and lazy, so what he said

Is it true or false?”

While the great sages were in a daze, Yu Ling quickly broke away from the encirclement and rushed towards the stairs with Nian Yubai as quickly as possible.

When Mo Ling and others came to their senses, where were the traces of them?

"This kid actually set up a trap to get us in so he could escape on his own." An old man laughed and shook his head.

"But I really can't get out of this trap. If that person is lying, then 'he is lying' is a lie, so he is telling the truth, but if it is the truth, he is lying again, and finally it goes around and around

There is no answer at all." Another great sage said with a bitter smile.

"The young people of the human race today are really interesting. I hope to see him again in the future." Mo Ling sighed softly.

"Come on, let's not dwell on this paradox. It's more interesting to derive the formula above."

…

"Huh, it's so dangerous," Nian Yubai said, wiping away cold sweat at the stairs on the sixth floor.

Dong Mo whispered: "It should be said that the one who is in danger is obviously Brother Yu, right?"

Nian Yubai raised his eyebrows narrowly and said: "Aling, surrounded by a group of great sages and stars, do you feel particularly accomplished and proud?"

"You're so proud." Yu Ling said angrily.

He was obviously walking on thin ice, but why did he have so much ink in his stomach?

"Wow, look, there are many, many books here!" Dong Lu suddenly exclaimed.

The two people turned around and saw that the sixth floor of the tower was filled with rows of neat bookshelves, with rows of thread-bound ancient books stacked in different categories. What hit their faces was a vicissitudes of time and ancient fragrance of books, which made people wonder.

The irritability is swept away and the mind becomes clear and peaceful.

To be honest, Yu Ling was much kinder to this kind of thread-bound books than to the commonly used jade briefs.

"Can you take it away..." Nian Yu looked at it with blank eyes, and suddenly became obsessed with collecting.

"No, you can read or engrave, but you cannot damage or take away the books here." A voice sounded from somewhere.

"Who are you?" Nian Yubai's eyes widened.

"I am this tower." The voice sounded like a man or a woman, or even young or old, but it was like a gurgling clear spring that made people feel comfortable.

"Are you actually conscious?" Nian Yubai felt like an idiot after asking.

The tower spirit-like existence answered the question: "If you want to leave, just leave from the teleportation array in the middle."

"Thank you." Nian Yubai quickly made amends.

"You're welcome, friends of the human race, since you can come here, it proves your wisdom. The Yago tribe has always had a close relationship with the human race, so the books here are all in human language versions." Taling said gently and authentically.

Nian Yubai and Dong Mo looked at each other, too embarrassed to speak. If it wasn't all thanks to Yu Ling, they would have been wiped out on the first floor, okay?

Yu Ling was not at all complacent. Anyway, he was just a shameless mover, and other people's wisdom could not be counted as his credit.

Several people walked along the bookshelf one by one. Although they wanted to engrave each book on the jade slips, after all, the achievements of countless people of the Yago tribe gathered here for countless years, so if they wanted to engrave them one by one, it would be difficult.

This is something that can only be accomplished in the year of the monkey and the month of the horse.

After Yu Ling picked up and engraved hundreds of books that she was interested in, she suddenly saw two unfamiliar Yago characters written on the bookshelf next to her. Fortunately, the bottom was written in ancient human language: Formation.

"Yu Bai, it's your fifteenth birthday the day after tomorrow, do you think these are my birthday gifts to you?" Yu Ling lightly knocked on the bookshelf and asked.

Nian Yubai rolled his eyes and said, "Aling, are you too ready-made?"

Before Yu Ling could speak, someone couldn't help but smile and said: "But if it weren't for you, I wouldn't be able to come here. Ah, there are so many formation books, I can't be too happy!"

Three days later, Yu Ling left the Holy Tower with tens of thousands of engraved ancient books on history, geography and other types. This was something he weighed after many careful selections. Of course, the main reason was that he

The capacity of the blank jade slip is not enough, not enough!

Yu Ling made a rough calculation and found that a single piece of jade could not contain about a million words of information, so the rhythm was... He had at least engraved hundreds of millions of words.

Even if he cultivates his soul power and has a powerful photographic memory, but... can he really see all these things in his lifetime...

Not long after leaving the Holy Tower, several people met Enrika on the road.
Chapter completed!