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Chapter 95 Apprenticeship
"It's just a fluke!" Yang Chao said, without the elves, he would definitely not be able to pass this level.

Zhang Zhongchen waved his hand and said, "It's over, it's over, don't be modest, I'm looking forward to your next performance now."

After Zhang Zhongchen finished speaking, not only Yang Chao, but also Gao Donglai and the other three raised their spirits and listened carefully. The first two levels were so difficult, let alone the third level.

"The third hurdle is: design a method to calculate the speed of light." Zhang Zhongchen said.

"Light still has speed. Isn't light able to reach infinity in an instant!"

"Light is invisible, how to calculate his speed!"

"It's harder than climbing to the sky. I'm afraid Yang Chao will be brushed off this time."

Gao Donglai and the others were dumbfounded. It was the first time they had heard that light has a speed, let alone calculated it.At this moment, they looked at Yang Chao pitifully. This third pass was simply a natural moat, an impossible pass.

The three of Gao Donglai were shocked and gloated, but Yang Chao smiled happily.Dixuan Star is a cultivating civilization, and few people care about the speed of light. However, for technological civilization, the speed of light has been accurately calculated as early as the earth era, so for him, he has the ability to calculate the speed of light. Dozens of methods.

However, in the current environment, it is not so easy to calculate the speed of light at the shortest speed.But it is not difficult. Yang Chao thought of Fizeau's ground survey method, which was designed by the Frenchman Fizeau in 1849.

Fizeau's ground measurement method is as follows: put a point light source at the focal point of the lens, put a gear between the lens and the light source, place another lens and a plane mirror in turn on the other side of the lens, and the plane mirror at the focal point of the second lens.

The light emitted by the point light source becomes parallel light after passing through the gear and the lens, and the parallel light converges at one point on the plane mirror after passing through the second lens, and returns on the original path after being reflected on the plane mirror.

Since the gears have backlash and teeth, the observer can see the returning light when the light passes through the backlash, and is blocked when the light happens to hit the tooth.

The time from the beginning to the return of the light disappearing for the first time is the time it takes for the light to go back and forth once. According to the rotation speed of the gear, this time is not difficult to find.

Due to the relatively simple conditions, through this method, the speed of light measured by Fizeau is 315000 km/s. Although it is not very accurate, it is very close. It is still no problem to deal with Zhang Zhongchen.

At that moment, Yang Chao began to explain Feisuo's ground measurement method to Zhang Zhongchen. Zhang Zhongchen was obviously also a learned person, so Yang Chao's narration was easy for him to understand. That's the real speed of light.

The three of Gao Donglai were in a daze and didn't know what to say, but looking at Zhang Zhongchen's enthusiastic expression, it was not difficult to know that Yang Chao might easily pass this test again.

When others are only a little better than themselves, people usually feel jealous, but when the gap is too big, then it is not jealousy, but worship.

Regarding Yang Chao, the three of Gao Donglai were more than jealous before, but at the moment, all they have is a heart of admiration, the two are not on the same level, and there is no comparison at all.

"Okay, very good, Yang Chao, you really impress me. You have passed the third test. I want to accept you as my apprentice. What do you think!"

Zhang Zhongchen said loudly, his mind that had been as calm as water was also stirred up. You must know that it took him a lot of time and effort to figure out the speed of light, but Yang Chao calculated it with such a clever method. describe.

Yang Chao blushed a little, he also plagiarized the wisdom of the ancients, otherwise he would not have thought of such a clever and simple method for a while.However, he quickly knelt down on the ground and prostrated himself: "Disciple Yang Chao, pay homage to Master."

"Okay, good disciple, get up quickly, haha, I'm really happy today." Zhang Zhongchen laughed loudly, and accepted Yang Chao as his personal disciple. He also fulfilled his promise to the three of Gao Donglai and accepted him for Named disciple.

"Disciple Gao Donglai, Lu Zhongshu, and Cui Zhihong pay homage to the teacher!" The three knelt down and shouted loudly. Although they were registered disciples, there were only four disciples of Zhang Zhongchen. When the time comes, they will enjoy no more resources than others. His personal disciples are poor.

"Well, since you have already worshiped me as your teacher, now follow me to meet the suzerain, and then go to worship the patriarch and become a direct disciple." Zhang Zhongchen said, turned and left, Yang Chao and the others hurriedly followed.

Soon the group arrived at the Feiyu Hall, the main hall of the Feiyu Sect Master, a huge building with a height of nine feet. Xiao Li sat high on the head. He watched Zhang Zhongchen walk in with the four of them, with a surprised expression on his face. Smiling, he hurriedly walked down, cupped his hands and said: "Congratulations, senior brother, for accepting four excellent apprentices at one time."

"Zhang Zhongchen turned out to be Xiao Li's senior brother!" Yang Chao was also shocked.

Zhang Zhongchen stroked his beard with a smile, and said: "It is true that there is only one excellent student. Sovereign Master, this is my direct disciple Yang Chao, who has passed all my assessments. These are my three named disciples. Although the talent is a bit weak, But the victory lies in the tenacity of will, which is rare.”

Xiao Li looked at Yang Chao with starry eyes, and took a deep look. He was very clear about Zhang Zhongchen's conditions for accepting apprentices. After hundreds of years, I don't know how many geniuses wanted to worship him as a teacher, but they didn't say anything. They all passed, even very few passed the first level.

Yang Chao was able to pass all of Zhang Zhongchen's assessments, needless to say he was an extraordinary person.

"That's right, he's an imposing appearance, and he's a talented person."

Xiao Li nodded, and he said to Zhang Zhongchen: "This time I set up ten difficulties, and no one has passed it until now, and I don't know if I can get a satisfactory apprentice."

"It's still early, and it will take at least ten days and a half months for the results to come out. Sovereign, I'll take them to worship the ancestor first." Zhang Zhongchen said.

Leaving Feiyu Hall, Yang Chao followed Zhang Zhongchen to pay respects to the ancestors of the past dynasties. The ancestral hall is enshrined with numerous tablets of the ancestors of the past, the highest of which is naturally the tablet of the founder of the Feiyu Sect.

"Of all the patriarchs of the past, the founder of Kaizong naturally has the highest cultivation level, and it is said that he has broken through the realm of returning to the void. In order to pursue the mysteries of the way of heaven, the patriarch went to the endless starry sky, and he never returned after that." Zhang Zhongchen said.

"Returning to the Void Realm, Master, is the Returning to the Void Realm the realm after the True Realm?" Yang Chao's heart moved, and he asked curiously. You must know that the cultivation system of the Earth Federation has grown from scratch, and the current official cultivation system is just the True Realm. .

"That's right. Forging body state, divine power state, primordial energy state, primordial embryo state, transforming spirit state, concentrating spirit state, manifesting spirit state, returning to reality state, sitting and forgetting state, after that is true as state and returning to virtual state. But in Dixuan star , there are very few people who have been able to reach the return to the void in the past, and generally at that stage of cultivation, they will go to the outer starry sky one after another to seek breakthroughs in higher realms." Zhang Zhongchen explained.

"Then what is the state after returning to the virtual state?"

"I don't know about this either. I'm afraid I can only find out by asking the Patriarch. Well, don't be too ambitious. Most people can't reach that realm even if they spend their whole lives." Zhang Zhongchen said.

(End of this chapter)