Douluo see you soon

Although Cheng Ying has been tempted, knowledge is still a precious thing in this era, so he has to act more reserved.

"What can you do when you go to sea alone? Navigation is not something that can be done by one person. You didn't realize that I had to bring these 800 sailors to launch this giant ship. If you really want to find your loved ones, you might as well ask me for help.

Search the sea for a few times."

"But I..." Bo Lan didn't really lose her parents in the first place. The feelings were not well brewed for a while and it was hard to refute.

"Teacher, don't you always say that it is better to teach a man to fish than to teach him how to fish? How can you replace Bo Lan in sailing and teach her the skills of long-distance navigation?" Cheng Ying looked at Tang Chen who stood up to help, and couldn't help but

I put one hand on my forehead and thought to myself, where are you from?

"You have to think clearly. Knowledge is priceless and it is impossible to impart it to you. Of course, if you formally become a disciple, that is a different matter. Otherwise, I can only teach you some superficial things." Cheng Ying

I think this should make it easier for me to accept another apprentice.

Unexpectedly, Bo Lan hesitated and said after a while: "I'm sorry, I'm afraid I can't accept you as my teacher."

"You already have a master?" Cheng Ying was confused. She didn't look like she had a master!

"No, it's just that for some reasons, it's not convenient for you to become a disciple. I can treat you like a teacher, but I'm afraid I can't become a disciple..." Seeing that Bo Lan's troubled expression didn't seem to be fake, Cheng Ying couldn't help but raise his eyebrows.

From all aspects, Bo Lan has no reason to refuse to become a disciple, unless... it is because her identity is not suitable. Reminiscent of the original work, she stayed alone on Poseidon Island for nearly a hundred years, just to wait for the successor of the god. In the end

You have to sacrifice yourself to complete the inheritance of Poseidon. I am afraid that your identity is very special.

"Well, if you really don't want to be a disciple, forget it. For the sake of your sincerity, I will teach you whatever I can tell you." Cheng Ying recalled what Bo Saixi said to Tang Chen and Qian Dao in the original work.

Liu said that he would only be with the one who became a god. Now that he thinks about it, it may not be just to reject Qian Daoliu. It is very likely that the necessary condition for marrying this girl is to become a god.

Bo Lan was relieved when she heard this. She was naturally Bo Saixi. As a soul master who was born with the Poseidon Martial Spirit, she was bound to the god when she was born. All the soul masters on Poseidon Island got it.

According to the oracle, Poseidon appointed her as a saint, a soul master who specializes in serving Poseidon.

This is undoubtedly a supreme honor for a race that has believed in the Poseidon for generations. Since the saint who serves the Poseidon is naturally not allowed to marry, let alone the teacher. Otherwise, the teacher would be on the same level as the Poseidon.

.

Naturally, Bo Saixi, who became a saint, gained a respected status on Poseidon Island. She was like the uncrowned king of Poseidon Island. The only restriction was that she could not leave the inheritance of Poseidon.

Unfortunately, Bo Saixi is on Poseidon Island. There are very few people who yearn for freedom and want to see the world. The spirit of adventure, which is the most precious kind of will on an isolated desert island, has not

It just happened to the most inappropriate person.

She escaped countless times, but was either swept back by the sea or caught by the sea soul beast. Every time she was swallowed and vomited out by the sea soul beast, it was a nightmare experience, as if the sea god was punishing her.

The general escape.

This time, I thought I was going to be captured again, but I didn't expect to encounter the World's End passing by. The Sea Spirit Beast that captured her was directly killed. With such a huge ship, it was simply the best chance to escape from Poseidon Island.

But she knows very well that the power of gods cannot be resisted by humans. Although the giant ship is strong, it is unrealistic to take her away without the obstruction of gods. The result of taking her away by force will only be

He might be buried in the sea.

She didn't want to implicate innocent people for her own reasons, she just wanted to learn as much knowledge as possible about crossing the ocean before being caught back, so that she wouldn't be washed back by the current in the ocean because she didn't know the direction.

Naturally, she couldn't take Cheng Ying as her teacher, because that would only harm him. No one knew what kind of character Poseidon was, and if she was particularly cautious, she would definitely not allow her saint to have a teacher.

She was just a fan of the authorities. She had never thought about why she had escaped so many times without any trouble...

In fact, Cheng Ying had almost guessed the truth, so he planned to teach Bo Saixi as much knowledge as possible about navigation. He believed that even if he couldn't abduct her, she would be able to escape from Poseidon Island by relying on her own abilities after learning these things.

come out.

Then……

Then Bo Saixi realized what the sea-questioning tactic was and what cram-feeding education was. With so few people on Poseidon Island, it was just a fool's errand to make a qualified navigation clock.

If you only know the latitude at sea, you are just drifting blindly. If you don't have a clock to determine the longitude, you can only rely on the stars in the sky.

If you're on Earth, you can look at Jupiter or Jupiter's satellites, but if you're in Douluo, you have to re-observe the star map.

Cheng Ying has not measured this data yet, so he has to teach Bo Saixi how to confirm the time by observing the stars, and then let her summarize it herself.

And the problem here is complicated. You need to learn the law of universal gravitation! To calculate the rotation of stars, you need to learn conic sections! For example, if you are proficient in using a sextant to observe stars, you need to learn the most basic analytical geometry!

Not to mention the more complicated ones, just conic sections and analytic geometry, the difficulty is simply terrifying for people who have no foundation at all. Cheng Ying actually wanted to say that if you want to calculate accurately, you need to learn calculus, but after thinking about it,

Still not taught. If he really wanted to be more serious, he would probably have to talk about using imaginary numbers to solve cubic equations of one variable. That would take several years of learning, and he wouldn't be able to finish it even if he cracked open Bo Saixi's head.

These days, Bo Saixi is also in pain and happiness. Although what Cheng Ying taught is difficult to understand and was jokingly called by other students as fairy knowledge, it has indeed benefited her a lot.

Especially after knowing that the thing under her feet was most likely a ball, she strengthened her determination to go out and take a look. The land under her feet was so vast, a circle of 80,000 miles away, let alone

Talk about the ethereal sky.

She may never have the opportunity to set foot on the outer world in her life, but it would be a pity if she misses it again on the ground beneath her feet.

The circumference of the planet under our feet is one kilometer. Cheng Ying personally measured it using the length of the sun's shadow. It can be said to be a coincidence, or it can be said to be inevitable, otherwise parameters such as gravitational acceleration would definitely change.

On this day, after Cheng Ying explained to Bo Saixi how to use the analytical method to find the tangent line of an ellipse, he looked at the dark clouds rolling in the distance and couldn't help but squint his eyes: "What is supposed to come will always come."

[To be continued]

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