Chapter 787: Scientific knowledge (for subscription)

"How fast is the speed of sound?"
Lord Lv curiously said, although Yang Fan usually popularizes scientific knowledge for these people, not everything is popularized, and there is not much time.
"Probably three hundred and forty meters per second, like this fast."
After Yang Fan finished speaking, he deliberately controlled his strength and kicked the ground with his right foot. A stone on the ground flew at a very slow speed in the eyes of the three.
As a cultivator, he was able to break through to the speed of sound when he was still in the Golden Core Stage, so this speed is almost like a snail crawling in the eyes of the Luye.
Master Lu curled his lips, but was a little frightened when he thought that the speed of light was 880,000 times the speed of sound.
Here is the lowest strength of the lord, and naturally the slowest speed. In case of any danger, he will probably be the last one to run.
"Okay, it's not too early, let's set off first, but we need to divide into three stages to go to the western border, and we will talk while walking."
While talking, Yang Fan opened the system mall, which was far away from the nearest city. Flying alone was expensive and tiring. This is like riding a motorcycle or an electric car, just pinch the handle, but you will feel tired over time.
Therefore, Yang Fan plans to temporarily rent a few spaceships with science fiction colors, similar to the superluminal spaceships in science fiction movies.
"The purchase is successful, consumes 100,000 points, and the time limit is one year."
The system prompt sounds.
"What do you say while walking, brother Yang, do you mean we flew over?"
The lord is surprisingly lazy, so those who can be lazy will never do one more step.
However, as soon as he finished speaking, a behemoth appeared in front of the three of them, so scared that he directly squeezed the method and wanted to attack.
"Don't be nervous, this is the flying boat I just summoned, don't hit it, it's very crisp."
Technological products can never be compared with comprehensionists. With the current strength of Lord Lu, this kind of fragile spaceship can be destroyed by a sneeze.
The spaceship was in the shape of a bird, and at first glance it looked a bit like that of the Star Lord in the Avengers.
"Taoist, there is one thing that needs your help."
"what's up?"
The preacher withdrew his gaze from the strange bird-shaped metal object, said.
"You can also see that the airship is made of the most common ordinary iron, and cannot withstand attacks, so please arrange a powerful formation for it to avoid disintegration in the air."
"Okay, it's very simple."
Although the preacher did not clearly state that he was a mages of several ranks, he was definitely not low, so Yang Fan did not do it himself.
In less than ten minutes, the preacher arranged no less than three hidden formations on the spaceship, each of which was very powerful. The eighth-tier strongest of the Golden Wonderland came, and it would take a while to break.
"Yes, Daoist, from whom did you learn this formation? It's so strong."
Yang Fan couldn't help but admired, but the preacher didn't say anything, just smiled.
"Come in, let you see the wisdom of mortals."
Yang Fan snapped his fingers, and the hatches on both sides of the spacecraft opened automatically, and Lord Lv was a little frightened, because he was walking in the forefront, he cautiously reached into it and found that there was no one.
"Don't look at no one inside."
Yang Fan was a little funny, as if he was looking out from a village, who hadn't seen the world.
"Wow, Brother Yang, your flying boat is the same. The furnishings inside are all different. They are all things that the immortal has never seen before."
The lord took the lead to go there, and what caught his eye was the huge space.
This spacecraft is a manned spacecraft, so there are many things in it, but it is not neatly photographed in a row like an airplane, but scattered around.
In front of these seats is the driving area, and the rows of consoles are very sci-fi. Not to mention the backward cultivators who don't understand science, even people on Earth can't help but be shocked when they see it.
The technological content of this spacecraft is at least a thousand years ahead of the current technology of the earth.
"Old man, after so many years, I have never seen a flying boat like this. No matter how I look at it, I have not sensed the energy used to drive the flying boat."
After entering the spaceship, the preacher's divine consciousness quickly scanned the entire spaceship, and there was no place like that of the Shenxing Flying Boat.
"This is a spaceship, not a flying boat."
Yang Fandao.
"Xiao Fan, don't both the boat and the boat mean the same thing?"
Jian Wudi opened his mouth, and his eyes were also attracted by this sci-fi picture.
"This is different. This kind of ship is specially used to travel through the universe. With it, even mortals can travel in the universe."
"Brother Yang, is the universe you said is the chaotic region outside the immortal realm? I heard that it is very dangerous, even if it is a strong immortal emperor, I dare not go easily.
Master Lu scratched his head, and in the sporadic memory, there was some information outside the fairyland, but it was very fragmented, and only a little bit was known.
"That's different. Where I come, mortals only need to build a spacecraft that can fly hundreds of kilometers high, and they can come into the universe, and the risk factor is not high. If the technology is mature, it is easy to eat."
Yang Fan's words could not solve the doubts of the three.
"That's good. Let me tell you a little about the environment of my hometown. I will take you there when I have time. Jarvis, project the whole picture of the solar system."
As Yang Fan said, a nice male voice sounded, with the same tone as Jarvis, the butler of Iron Man.
"Good host."
The two were surprised.
"This is the spirit?"
Jian Wudi was curious, and the voice came from the console.
"No, this is not a tool spirit, I didn't notice it."
Except for Yang Fan, the preachers have the highest realm, so Lord Lu did not refute.
"Don't think too much, this is just artificial intelligence, there is no life, and in terms of intelligence, it is just a monster that has just opened up."
As they talked, in front of a few people, a dozen or so planets of different sizes appeared, the most obvious being the fiery red sun.
"This is the galaxy I live in, the solar system, and this is where I used to live."
Yang Fan pointed to a planetary road the size of a table tennis ball.
"So small, I guess I just took a step before leaving this planet."
Lu Ye smiled, not knowing what he was laughing at.
"It is indeed a bit small, the longest diameter is only 40,000 kilometers in circumference. But don't underestimate the mortal who understands science. You must know that the end of science is theology. It is not impossible to master the ability of gods."
Yang Fan waved his hand, and the earth, which was only the size of a ping-pong ball, instantly became larger, introducing the earth to the three of them.
From the birth of the earth, to the beginning of life on earth, then dinosaurs, apes, Homo sapiens, and finally humans. And from the rise of science to the current development of science and technology on the earth, the three people have raised a lot of interest.
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