Gan Ning and his entourage spent nearly ten days making a detour to Australia, but before that, Lu Bu had already sent Chitu back to report Diao Chan's safety. Pen & Fun & Pavilion www.biquge.info

Therefore, when Gan Ning and his entourage sent Lu Bu back, Diao Chan was standing on the shore quietly waiting for Lu Bu to return.

"Shhh Sun Ce glanced at it and turned his head decisively, why Ma Chao was chased and cut down by Lu Bu for thousands of kilometers, he still knew, Chitu and Diao Chan, that must not be provoked.

"Fengxian, are you alright?" Lu Bu hugged Diao Chan into his arms, didn't say much, Diao Chan asked timidly.

Although there are countless things I want to ask, I want to know why it took so long to come back, I want to know how many injuries Lu Bu was injured at that time, and I want to know if Lu Bu's hidden danger has been eradicated, but when I saw Lu Bu, Diao Chan only asked this one sentence.

"It's okay, don't worry, no one can beat me, after a while, let's go back to the Central Plains." Lu Bu said calmly, and didn't say anything bad about Zhao Yun and Lu Qiling, but the hand holding Diao Chan trembled a little.

"Well, let's go back to the Central Plains." Diao Chan looked up at Lu Bu and nodded with a smile that warmed Lu Bu's heart, and did not resist as Lu Bu was worried about.

It's just that at that moment, Diao Chan hugged Lu Bu's hands, and his fingers couldn't help but twist together behind Lu Bu's back, Central Plains, is it still going to return to the place where he buried his father-in-law and buried his past?

Even if his strongest and invincible husband is still not absolutely stable in the Central Plains, when he returns there, his husband wants to embark on the road of conquering the Central Plains again, but he can't tie him to his side forever, he is an eagle, although he has fallen to the earth for a while, his real residence has never changed, it is the high sky!

"Well, let's go back to the Central Plains." Diao Chan raised his head and looked at Lu Bu gently, even if the goshawk fell to the earth because the thing he liked was on the earth, but one day he needed to return to the sky, and that was his real hometown.

"Wenhou, wait a day or two, how about I wait for the drinking water to be resupplied before we hit the road." Zhou Yu said to Lu Bu respectfully, this is really a very terrible man.

"Whatever you want, go south-west, there's a river." Lu Bu pointed to the southwest and said casually, not long after he moved to the west coast now, he found this place with a water source, near the sea, and dense vegetation.

Zhou Yu nodded, and ordered a large number of soldiers to get off the ship and land, and some of the Xiangshi who watched the sky and the earth also slipped down, but the time was only half a day, and those Xiangshi ran back with a shocked face, and they found the iron ore.

"You're saying you found iron ore?" Zhou Yu looked at these scholars with a little puzzlement.

When Zhou Yu went south, he brought a lot of scholars who were good at feng shui stargazing, of course, the main thing was not to let them look for iron ore, but mainly to rely on this group of people to look at the stars to determine the direction when sailing.

Although after arriving in the southern hemisphere, the astrology of the Central Plains has died, but Zhou Yu's speed is not very fast after all, this group of people are observing and verifying, although the astrology is constantly changing, but relying on years of research on astrology, relying on the reference comparison that sleeps every night, they have now drawn part of the astrology of the southern hemisphere.

But the biggest problem now is not the astrology, but the collision of the internal thinking of this group of stargazers, how to say, the vast majority of them already suspect that this thing under their feet is not flat, well, it is no longer a question of whether it is flat or not, it is a ball at the feet!

Although as early as sixty or seventy years ago, some people in the Central Plains had come up with the speculation that "the sky is like a chicken, the celestial body is as round as a projectile, and the earth is like a chicken in the yellow", but there were not too many people who believed it at that time.

But the problem now is that according to the conclusions of these stargazers, either the stars in the sky are very close to us, or the thing under our feet is a ball.

Because only when the object is very close, you will have the feeling that you are moving, and the object is moving to another place, and when an object is far away, it is basically you who move again, and the perceived displacement of the other party does not exist.

In ancient China, the distance between the Earth and the Moon was calculated in this way, and although there was no accurate way to determine the displacement and inclination angle, the error was large, but the method was not wrong.

In this case, virtually all stargazers know that the moon is hundreds of thousands of miles away from them, and according to the results of their boat perception, the stars can only be so displaced if they are closer than the moon, but this is impossible!

At this time, the people at the bottom didn't know how many stars the Beidou was, and they only thought that the shape had always been like this, but the descendants of these long-standing supervisors all knew that the Beidou had nine stars, to be precise, the star map had changed for hundreds of years, and there were actually slight changes after more than a thousand years, but this change could not be determined by non-professionals.

Of course, those who can be found by Zhou Yu must be professionals, and they naturally know the changes in the star map, and they enter the southern hemisphere from the northern hemisphere, and the star map of the Big Dipper has not changed, and even the stars have not undergone visible offset, which is enough to show that the distance from the stars is farther than the moon.

This is the most tangled place for all stargazers, the position of the star map of the stars has not shifted, but it has disappeared, and at that time, some of the stargazers suspect that the ground under their feet is not flat.

Later, as we traveled through the sea, we became more and more sure, and after seeing the ship in the distance, and the first position of the mast we saw, most of the stargazers were sure of the fact that it was not a ball or not, but it was definitely not flat.

All the stargazers have reached a consensus on this point, but it is useless, the radical stargazers, leaning on the earth as a ball, have solved the problem of lunar eclipses, and also explain why the place where the moon is black during the lunar eclipse is just an arc.

Anyway, for this almost played, if it was a ball, why didn't we fall, because it was big, so it was flat.

Then someone began to calculate the size of the hypothetical ball based on the distance between the ship's top mast and the place where he was standing, as seen on the sea, and then the group almost got into a fight.

Anyway, this thing under the foot is definitely not a square piece, but what most stargazers can't understand now is what if it's a ball, what about the guys on the back of the ball?

After all, it is not parallel goods that can continue to tear up with each other in this situation, the ancestors have definitely produced astrology and mathematics bosses, especially among this group of people, there are also descendants of Gander, although he supports that this thing is a ball at his feet, but he asked others a question.

"My ancestors said six hundred years ago in the Ganshi Star Sutra that we are revolving around the sun, and now this thing under our feet is a ball according to our calculations, and when we turn to the back, should we fly out!" Gan Fen asked such a question at that time.

The audience knelt down, no one could answer this question, although there are monsters such as Wang Fan's father and Chen Zhuo's grandfather, but these people have no way to solve this problem.

Although these people can use mathematical methods, in the case of this π and they are still estimating, to calculate the approximate size of the earth in the form of perfect circles, radians, tangents, and trigonometric functions, none of them can solve the problem that Gan Fen asked.

However, although this group of people did not fight because there was no way to solve this problem, because this thing was a ball at their feet, it had caused a split within them.

In short, this group of people is ready to die and not get along, and they will study this after they go back, and if they don't study it when they die, they will hand it over to their son to continue researching, and if the son dies, there will be grandchildren, anyway, there will be infinite generations of children and grandchildren.

After all, in ancient times, most of the people who could do mathematics and astrology were not poor, most of them had played all over the world, and there was nothing left to play, so they could only invest in the ocean of knowledge to make themselves refreshed, so there was no difficulty and life problem for these people.

Even if it is dead, there will be a successor, this generation can't complete it, the next generation will continue to study, anyway, write down what you don't understand, and wait until one day the descendants will solve it, this is their own capital, any mathematical problems and natural phenomena encounter this, and several generations will start to study the model when they have nothing to do, basically no natural science can withstand it.

This is especially true for a family from top to bottom, and the children are nurtured from birth, and the support that the family can give from the beginning is beyond the normal level.

The group of people who had fallen out secretly made up their minds to go home and start researching, as for being on the ship now, let's work for Zhou Yu obediently.

Although this group of people was a little absent-minded when they worked because of a major problem, they were all good at it after all, and they didn't even forget the skills of eating.

Then they found a very large, high-quality iron ore, and based on their experience, it seemed to be of better quality than any of the iron ore they had ever recorded!

This was a bit surprising, so a group of people hurriedly ran back to Zhou Yu to report the matter.

"Iron ore of excellent quality?" Zhou Yu said puzzledly, but didn't take it to heart.

The Central Plains is too far away from here, just the transportation feels very unworthy, and then think about the volume of ships, as well as the escort ships needed to deal with the Kushan Navy that may exist in Malacca on the way, Zhou Yu said that the pressure is too great, and it is not possible to make a round trip of 20,000 kilometers!

If you transport iron ore over such a long distance, the cost has exploded, and it is better to mine in the Central Plains and build a mine for smelting on the spot, Australia or something is too far.

However, Gan Ning seems to be very interested in iron ore, in his opinion, he can not get his hands on it now, he can also occupy it first, and if he can't occupy it, he can also enclose the land first, and prepare future generations since ancient times.