Chen Yan was slapped on the bottom of the sea by the dark huge waves, and then washed to the surface by the updraft of the bottom of the sea. Pen ~ fun ~ pavilion www.biquge.info

On the shore, there are countless people who are looking forward to it, because, because when the leader left, he said that he would return when the spatial vortex passage opened again.

When Chen Yan rushed out of the whirlpool channel, countless people on the shore saw a white figure being slapped into the bottom of the sea by the spiral swirling current.

"The chief is back."

"Pick it up and meet the chief."

"Send a man back to tell him that the chief has returned."

……

The shore was boiling with cheers.

Chen Yan cast the water to escape the water and escaped to the coast.

Countless people greeted Chen Yan and said respectfully to Chen Yan, "Chief." ”

"I'm back." Chen Yan said.

……

Back to the familiar place again, the changes are very big.

The Star Canyon is full of houses, extending to the outside of the canyon, the houses are densely packed, circled, rowed, neatly planned, the farmland is endless, Qianmo, the ditches are like spider webs, in the farmland, countless farmers are busy working, from time to time raise their heads to wipe their sweat, and then continue to work with their heads down.

Chen Yan, who returned, automatically took over power from the Senate.

In the Blue Star Country, Chen Yan's authority is supreme.

If a general of a 500-person team wants to rebel, as long as Chen Yan gives an order, all the general's subordinates will turn against the rebellious general, and the rebellious general can only be restrained, and the 10 generals of the 500-person team have no idea of rebelling in their minds.

The general reported to Chen Yan about the Human Legion, which was still 10 teams of 500 people, with more than 5,000 people, and in the more than one year that Chen Yan left, he stepped up training and became a very elite army.

The civil affairs officer reported to Chen Yan on the direction of civil affairs.

When Chen Yan left, the population of the Blue Star Country was more than 20,000 people, and during the time that Chen Yan left, there were constantly human tribes coming over, less than 1 or 200 people, more than hundreds, and even thousands of large tribes, in the long winter season, a large settlement of hundreds of people disappeared in the wind and snow, this is what happens in every winter season, otherwise a civilization would have been formed at the speed of human reproduction, just like the civilization of the earth.

Chen Yan knew that tens of thousands of years ago, there were only a few thousand human beings left in Africa, and the environment was harsh, but it was still difficult to carry it down and reproduce the civilization of the earth.

The population of the Blue Star Country has grown to more than 50,000 people, and the area of absolute domination is tens of thousands of square kilometers.

Chen Yan explained the 13 things to them when he left, and he didn't dare to slack off.

Reclamation of farmland.

Train the army.

In addition to the hard work of the people, they also have to learn words and knowledge every day, and they dare not relax for a day, Chen Yan spent more than half a year more than 400 class hours to teach 3500 commonly used Chinese characters, and the number of people who can know all 3500 words has reached hundreds, and there are thousands of people who know thousands of words, and there are very few people who do not know words in the Blue Star Country.

This is the foundation of a civilization.

Writing is the foundation of a civilization, and culture is the skeleton of a civilization.

……

When he came back this time, Chen Yan made a lot of preparations on the earth, and filled the bubble space with all kinds of materials.

In a small country with a total of more than 50,000 people, there are not many things that need to be reported to Chen Yan.

It took one morning to report and it was done.

In the afternoon, Chen Yan listened to the opinions of the people in the square in the middle of the valley, and solved problems on the spot, which was the usual political style during Chen Yan's reign.

In the evening, Chen Yan gave lectures to everyone, and Chen Yan stuffed millions of books into the bubble space, half of which were textbooks.

Chen Yan distributed a book to everyone, which is a mathematics book for the first grade of primary school.

Previously, Chen Yan also taught some mathematical addition, subtraction, multiplication and division operations, but it was not systematic, and most of the time was used to teach words and knowledge.

This time, Chen Yan is preparing to systematically teach knowledge, not only mathematics, but also chemistry, physics, nature, and other knowledge.

Children learn systematically in school, and the curriculum and class time are greatly expanded. Increase, 3 years to complete elementary school, 2 years to complete high school, 2 years to complete university course.

Adults are cramming systematic learning, Chen Yan is cramming to teach knowledge, how much can be learned, and those with excellent academic performance cannot be buried.

……

Chen Yan first announced one thing before class, and the class time in the future will be increased from 4 hours to 6 hours, with an extra hour in the afternoon and an extra hour in the evening.

At this time, receiving knowledge is more important than anything.

……

Chen Yan asked the construction team to build a huge building on the side of the square in the middle of the valley, the building was made of strip-shaped bluestone in order to prevent fire, a total of three floors, Chen Yan put books in the building, this is the library, and stipulates that you can only borrow books from the library after passing the advanced writing exam and getting a library card.

The so-called advanced Chinese character test is to test the understanding and mastery of 3,500 commonly used Chinese characters.

Generally, a text test paper is passed with a score of 80, as long as you know and master the 3,500 commonly used Chinese character questions, it is very simple, for example, brewing, test pinyin, word awareness, yùn niàng, refers to the process of brewing wine, and can also refer to the preparation process of things gradually maturing.

……

The space in the bubble space is very large, so Chen Yan can bring a lot of things and stuff everything that can be stuffed into it.

If Chen Yan can get an aircraft carrier, he will definitely stuff an aircraft carrier in, after all, it is difficult and dangerous to go to the continent on the other side of the sea, and there are countless giant beasts in the sea, such as the giant turtle that Chen Yan saw before, the giant turtle can easily overturn even a cruiser when it surfaces in the sea, and only the aircraft carrier can sail safely in the sea.

The helicopter range is certainly not enough to reach the continent on the other side of the sea.

Fighter jets, long-range aircraft may also not have the range to reach the other continent of the sea.

Chen Yan used a relatively primitive but very practical method to measure the size of the planet.

Chen Yan first dug a very deep well on the flat ground outside the Xingxing Gorge, one day at noon, the sun can shoot all the way to the bottom of the well, that is, at noon on this day, the sun is located at the zenith of Xingxing Gorge, after this day, the sun will not be able to shoot at the bottom of the well, and the sun at noon in the Xingxing Gorge Valley is not direct on this day.

Chen Yan used a long pillar to stand on the ground on the seashore about 57 kilometers away from Xingxing Gorge, and measured the angle of incidence of the sun at noon that day to 12.7 degrees, and the difference of 12.7 degrees was the distance between the sea and Xingxing Gorge.

Based on this value and the estimation of the distance between the two places, Chen Yan calculated that the circumference of the planet is 1864541 kilometers.